Galapagos weather by month follows two broad patterns: a warm, wetter season (December–May) and a cool, drier season (June–November). Typical air temperatures range from about 72–86°F (22–30°C) in the warm season and 66–79°F (19–26°C) in the cool season; average water temperatures are about 76°F (24°C) and 72°F (22°C), respectively. Conditions vary by island, elevation, and El Niño/La Niña events, so use the monthly table as a planning guide rather than a guarantee.
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Understanding Galapagos Islands Weather Patterns
Galapagos sits on the equator, but its weather is not consistently hot and humid. Ocean currents, trade winds, elevation, and the location of each island create meaningful differences in air temperature, sea temperature, rain, and cloud cover throughout the year. That is the heart of Galapagos Islands weather: the map promises the tropics, and the ocean decides what you actually get.
The best way to use a Galapagos weather by month guide is to match the season to your comfort and the places you want to visit. The warmer months generally bring warmer, calmer water and greener lowlands. The cool season brings stronger trade winds, garúa in the highlands, and colder, nutrient-rich water that supports active marine feeding. Wildlife remains visible year-round, but sightings vary by island, visitor site, and natural conditions.
Galapagos climate is shaped by several ocean currents. The cool Humboldt Current arrives from the south, the warm Panama Current from the northeast, and the Cromwell Current drives especially strong upwelling around the western islands. Their seasonal balance affects air and sea temperature, rainfall, and marine productivity. The pattern is useful for planning, but El Niño and La Niña can make any given year warmer, cooler, wetter, or drier than average.
The Warm Season: December to May
December through May is the warm, wetter season, when the islands generally feel most tropical. According to Galapagos Conservancy, typical air temperatures range from about 72–86°F (22–30°C) and average water temperature is around 76°F (24°C). Short showers are common, but rain varies by island, elevation, and year; El Niño events can bring much wetter conditions. This is the half of the year when Galapagos weather actually matches the postcard.
December & January: New Year Warmth
December and January are usually hot and humid, with warmer water and greener lowland vegetation as rains begin. Green sea turtles nest on some beaches during the warm season, and many land birds become more active. The year-end holiday period can be busy, so reserve tours and inter-island transport early. Wildlife sightings remain natural and are never guaranteed.
February & March: Wet Season Peak
February and March are often among the wetter months, while air and sea temperatures remain warm. Many days still include useful touring windows, but heavier or longer rain is possible, especially during El Niño conditions. The extra moisture can turn normally dry lowlands green and increase land-bird activity. Build some flexibility into your itinerary rather than relying on a fixed daily weather pattern. Even at its wettest, Galapagos weather rarely cancels a full day outright.
April & May: Transition to Cool Season
By April and May, rainfall decreases and temperatures start dropping toward 75-78°F. The ocean begins cooling as upwelling events increase—cold nutrient-rich water rises from the depths. Marine iguanas feed more actively, and you’ll start seeing flightless cormorants diving. These months are sweet spots for avoiding crowds while still having pleasant weather.
The Cool/Dry Season: June to November
From June through November, cooler water and stronger trade winds shape the Galapagos. Galapagos Conservancy lists typical air temperatures of about 66–79°F (19–26°C) and an average water temperature near 72°F (22°C). Seas can be rougher, and misty garúa is more common in the highlands. Nutrient-rich water often supports active marine feeding, especially around the western islands; a wetsuit is useful for longer snorkeling sessions. Galapagos weather in these months runs cooler than most first-timers pack for.
June & July: Peak Cool Season
June and July mark the shift into the cool season. Coastal days are often mild, but stronger trade winds can make boat crossings choppier and the ocean feels noticeably cooler; western upwelling zones may be colder than the central islands. Remote Darwin and Wolf are known for pelagic species, but they are specialized liveaboard dive destinations—not stops on regular land-based or day-tour itineraries. This is when Galapagos weather starts fooling packers who trusted the word “equator.”
August & September: Wildlife Abundance
August is commonly one of the coolest months, and September usually remains in the cool, dry season. Expect trade winds, possible garúa in the highlands, and cooler snorkeling water. Waved albatrosses are normally present on Española during their April–December breeding season, provided your authorized itinerary includes the relevant visitor site. Conditions and sightings still vary from day to day. If you measure Galapagos weather in wetsuit thickness, this is peak neoprene.
October & November: Season’s End
October and November remain part of the cool, drier season before the warm pattern returns. Air and sea temperatures usually begin to rise toward the end of this period, although the timing differs each year. Waved albatrosses may still be present on Española through December, while marine activity depends on the island and visitor site. If you would rather have the logistics arranged, our 5-day island hopping itinerary combines Santa Cruz and Isabela with local guides. It is Galapagos weather at its most understated — quiet seas, thin crowds.
12-Month Galapagos Climate & Wildlife Table
| Month | Broad season | Typical air range | Typical sea temperature | Planning notes |
|---|---|---|---|---|
| January | Warm, wetter | 72–86°F (22–30°C) | About 76°F (24°C) | Warm, humid conditions; short showers are common; holiday demand may remain high. |
| February | Warm, wetter | 72–86°F (22–30°C) | About 76°F (24°C) | Often among the wetter months; heavier rain is possible, especially during El Niño. |
| March | Warm, wetter | 72–86°F (22–30°C) | About 76°F (24°C) | Warm water and green lowlands; keep flexibility for showers. |
| April | Warm, wetter | 72–86°F (22–30°C) | About 76°F (24°C) | Warm conditions continue; waved albatrosses normally begin returning to Española. |
| May | Warm-season transition | Usually within the warm-season range | Trending cooler | A transition month; wind and sea temperature may begin to change. |
| June | Cool, drier begins | 66–79°F (19–26°C) | About 72°F (22°C) | Trade winds strengthen; seas can be rougher and highland garúa becomes more common. |
| July | Cool, drier | 66–79°F (19–26°C) | About 72°F (22°C) | Cooler snorkeling water; a wetsuit helps; this is part of a busy travel period. |
| August | Cool, drier | 66–79°F (19–26°C) | About 72°F (22°C) | Commonly one of the coolest months; expect trade winds and possible choppy crossings. |
| September | Cool, drier | 66–79°F (19–26°C) | About 72°F (22°C) | Garúa may affect highlands; conditions remain cooler than the warm season. |
| October | Cool, drier | 66–79°F (19–26°C) | About 72°F (22°C) | Cool-season conditions continue; waved albatrosses are normally still on Española. |
| November | Cool-season transition | Usually within the cool-season range | Trending warmer | A transition month; exact timing varies from year to year. |
| December | Warm, wetter begins | 72–86°F (22–30°C) | About 76°F (24°C) | Warmer conditions return; mid-December starts a busy holiday period. |
Seasonal ranges: Galápagos Conservancy trip-planning guide. Values are broad seasonal references, not a daily forecast.
What to Pack for Each Season
6-Day Galapagos Land Tour Santa Cruz + Isabela Highlights
From $1,150 p.p.
- Sleep in island hotels, not a cruise cabin
- Local naturalist guides
- Flexible day-by-day island hopping
Galapagos weather might seem simple on the surface, but packing wrong can ruin your trip. I’ve seen visitors shivering in June because they brought only summer clothes, and others sweating miserably in December rain without proper ventilation.
Warm Season Essentials (Dec-May)
- Lightweight, breathable clothing (linen or moisture-wicking fabrics)
- Light rain jacket or poncho for afternoon showers
- Sun protection: hat, sunglasses, SPF 50+ sunscreen
- Light 3mm wetsuit for cooler early mornings
- Reef-safe sandals and water shoes
Cool Season Essentials (Jun-Nov)
- Warm layers: fleece, light jacket, or sweatshirt for evenings
- 5-7mm wetsuit for snorkeling (water is genuinely cold)
- Closed-toe hiking shoes for cooler, windier days
- Windbreaker or waterproof jacket
- Hat and sunglasses (UV is intense even when cooler)
Ocean Currents & Water Temperature: The Real Story
Why does Galapagos water temperature vary so much? The archipelago sits where several major currents meet. The cool Humboldt Current flows north along South America, while the subsurface Cromwell Current produces especially strong upwelling in the west. This upwelling brings cold, nutrient-rich water that supports productive marine food webs. Galapagos weather above the surface tells you surprisingly little about what the sea is doing below it.
The warmer Panama Current has more influence during the warm season. These currents do not follow a perfectly fixed calendar: winds, local geography, and El Niño/La Niña can change temperature, rainfall, sea state, and marine productivity. That is why monthly averages are useful for planning but cannot predict the exact conditions of a specific trip.
Galapagos Water Temperature by Month
Galapagos water temperature by month runs from about 71°F (22°C) at the bottom of the upwelling season in August and September to 77°F (25°C) at the warm-season peak from February through April. Six degrees does not sound like much. In the water, it is the difference between snorkeling happily in a swimsuit and shivering after twenty minutes.
| Month | Water temperature | In the water |
|---|---|---|
| January | 76°F / 24°C | Skin or shorty — warm, clearing |
| February | 77°F / 25°C | Skin — warmest, clearest water |
| March | 77°F / 25°C | Skin — warmest, clearest water |
| April | 77°F / 25°C | Skin or shorty — still warm |
| May | 76°F / 24°C | Shorty — cooling begins |
| June | 74°F / 23°C | 3mm shorty or full |
| July | 72°F / 22°C | 3mm full suit |
| August | 71°F / 22°C | 3–5mm full — coldest, most wildlife |
| September | 71°F / 22°C | 3–5mm full — coldest, most wildlife |
| October | 72°F / 22°C | 3mm full suit |
| November | 73°F / 23°C | 3mm — warming slowly |
| December | 74°F / 23°C | Shorty or 3mm — warming |
Galapagos Water Temperature for Snorkeling: Wetsuit or Not?
Galapagos water temperature decides your packing list more than air temperature does. After fifteen years of putting guests in the water here, my rule is simple: December through May you can get away with a swimsuit or a shorty; June through November you will be glad you brought a 3mm — by August I wear one myself. That cold Humboldt water is exactly what pulls in the whale sharks, penguins and big feeding action, so do not curse it too hard.
Visibility flips the other way. The warm months of February to April usually give the clearest, calmest water for rays and turtles, while the plankton bloom of the cool season feeds the big animals but can turn the water green. If your trip is built around what is under the surface, start with our Galapagos snorkeling guide and match each site to its season.
Monthly Breakdown: Bird & Marine Life Patterns
What really determines whether you’ll have a great trip isn’t just personal comfort—it’s matching your expectations to what’s actually happening with animal life. I guide people year-round, and the most disappointed visitors are those who expected to see something that wasn’t in season. Galapagos weather sets the calendar here; the animals just keep it.
Best Months for Specific Wildlife
- Whale sharks: Encounters are associated mainly with the remote northern dive sites of Darwin and Wolf. These require specialized liveaboard diving and are not part of standard land-based tours.
- Waved albatrosses: Adults normally breed on Española from April through December; most leave by January. Your itinerary must include the appropriate authorized visitor site.
- Flightless cormorants and Galapagos penguins: They can be seen year-round, mainly around the colder western islands. Feeding and breeding activity changes with ocean conditions.
- Hammerhead sharks: They occur year-round, but large schools are most closely associated with dive sites—especially Darwin and Wolf—and sightings are never guaranteed.
- Marine iguanas: Breeding timing varies among islands and populations; hatchlings are often observed from May through July.
- Green sea turtles: Nesting occurs during the warm season on protected beaches, with access controlled by the Galapagos National Park.
Species timing references: Galápagos Conservancy on Española and the Charles Darwin Foundation seasonal study.
Crowd Seasons & Price Variations
Demand changes through the year. Galapagos Conservancy identifies mid-June through early September and mid-December through mid-January as the busiest periods. Flights, inter-island transport, hotels, and popular tours can fill earlier during those windows, so advance booking matters more than trying to predict a perfectly quiet visitor site. The crowds follow school holidays, not Galapagos weather.
April–May and September–November can offer more availability outside the main holiday peaks, although prices and crowds vary by island, operator, and year. Choose these months for their seasonal conditions first; treat any lower price as a possibility, not a guarantee.
Preparing for Your Month: The Weather Reality Check
Galapagos weather by month follows recognizable seasonal patterns, but no month comes with a fixed script. If you prefer warmer, generally calmer water, compare December–May. If you are comfortable with cooler water, trade winds, and possible garúa, compare June–November. Then check whether the islands and visitor sites on your itinerary match the wildlife you hope to see.
Direct tropical cyclones are rare in Galapagos, but that does not make weather disruptions impossible. El Niño can bring unusually warm seas and heavy rain, while wind and swell can affect boat crossings in the cool season. Check the short-range forecast before departure and leave sensible connections between islands and mainland flights. By tropical standards, Galapagos weather is remarkably storm-free.
Picking Your Month, and the Two People Ask About Most
Reading a climate table is one thing; committing to dates is another. If you are weighing seasons rather than months, start with the best time to visit Galapagos, and if your priority is dodging crowds and rough water, the worst time to visit Galapagos answers it from the opposite side.
The two months travelers ask about most are at the hinges of the year. Galapagos in December is the start of the warm, calm-water season and the busiest stretch of the calendar, while Galapagos in June marks the turn into the cool season, with colder water and more seabird activity. Neither will show you Galapagos weather at its worst — which is rather the point of asking.
Galapagos Weather by Month: Questions I Get All the Time
When is it too rainy to visit the Galapagos?
No month is normally off-limits because of rain. February and March are often wetter, and short showers are common, but heavier or longer rain can occur—especially during El Niño. Keep some flexibility and check the short-range forecast.
Do I need a wetsuit in December?
For swimming and snorkeling, a light 3mm wetsuit is comfortable but not essential. Many people are fine in just their swimsuit, with the sea around 74–77°F (23–25°C) and warming toward the season peak. That said, even warm water gets cold after 30 minutes of snorkeling.
What months are best for snorkeling?
There is no single best month. December–May usually offers warmer, often calmer water, which many first-time snorkelers prefer. June–November brings cooler, nutrient-rich water and active marine feeding, but wind and swell can be stronger. The island, site, and daily conditions matter as much as the month. For site-by-site choices, see our Galapagos snorkeling tours guide.
Is the Galapagos always humid?
Humidity varies by season, island, and elevation. The warm season generally feels more humid. During the cool season, coastal areas are cooler and drier, while the highlands can be misty because of garúa.
Can I visit during hurricane season?
Galapagos is not a regular hurricane destination, and direct tropical cyclones are rare. Still, strong swell, wind, heavy rain, and El Niño conditions can disrupt boat or air transport. Check the forecast and protect important flight connections with enough time.
What is the weather like in the Galapagos Islands?
Milder than most people expect. Despite sitting on the equator, the islands run on two seasons: a warm, wetter one from December to May (roughly 72–86°F / 22–30°C) and a cooler, drier one from June to November (66–79°F / 19–26°C) — set by ocean currents, not latitude.
What is the rainy season in the Galapagos?
December through May is the rainy season, but it usually means short, warm afternoon bursts rather than all-day washouts — February and March are the wettest. From June to November the lowlands stay mostly dry while the highlands sit under garúa mist.
What is the best month to go to Galapagos?
For weather alone, February to April brings the warmest water and calmest seas; July to September brings the richest wildlife activity in cooler conditions. There is no wrong month — it is a trade-off between comfort in the water and action under it.
What climate region are the Galapagos Islands in?
A tropical dry zone, oddly enough. The coasts are semi-arid — cactus and lava rather than jungle — while the highlands catch mist and stay green. The cold Humboldt Current is what keeps a tropical archipelago this dry and this cool.
Is the water warm in the Galapagos?
Warm-ish. December through May it is genuinely pleasant at 74–77°F (23–25°C). June through November the Humboldt Current drops it to 71–74°F (22–23°C) — cool enough that most snorkelers want a wetsuit, and productive enough to feed the wildlife show.
Final Thoughts from the Islands
Galapagos weather by month is a planning tool, not a promise. Warm months generally bring warmer water and greener lowlands; cool months bring trade winds, garúa in the highlands, and nutrient-rich seas. Neither season is universally better—the right choice depends on your comfort, route, and priorities.
Start with the islands and visitor sites you most want to experience, then compare their seasonal conditions. Use the table above to plan clothing and water activities, and keep expectations flexible because wildlife movements and weather vary naturally. Match Galapagos weather to the experience you want, and you cannot really pick wrong.
Ready to choose the season that fits your trip? Read our complete best time to visit guide to compare weather, crowds, and wildlife priorities, then plan your tour with local guides who can adapt the itinerary to current conditions.
For everything beyond weather, start with our complete guide to Galápagos Islands travel.
