INSTRUMENT / SEA TEMPERATURE
San Cristóbal Water Temperature
Updated Sat 14:55 (Pacific/Galapagos)
Ecuador · Forecast updated Nov 7, 2026, 14:55 UTC
Current Sea Temperature
28.3°C
82.9°F
Very warm water
Valid Nov 7, 2026, 14:55 (Pacific/Galapagos). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
5.3°C above
The typical November average is 23.0°C (73.4°F) from the historical baseline.
Recent trend
Warming by 0.5°C
Seven-day average: 28.7°C, versus 28.1°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for San Cristóbal, typical monthly averages range from about 21.8°C (71.2°F) in September to 28.0°C (82.4°F) in March.
Over the past 30 days, the average sea temperature in San Cristóbal has been 27.9°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near San Cristóbal, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 23.8–25.9°C | 24.8°C / 76.6°F |
| February | 27.6–27.8°C | 27.7°C / 81.9°F |
| March | 27.8–28.4°C | 28.0°C / 82.4°F |
| April | 25.3–28.2°C | 26.9°C / 80.4°F |
| May | 22.9–28.2°C | 25.3°C / 77.5°F |
| June | 21.9–27.4°C | 24.4°C / 75.9°F |
| July | 21.8–26.2°C | 23.4°C / 74.1°F |
| August | 20.7–25.0°C | 22.2°C / 72.0°F |
| September | 19.9–24.4°C | 21.8°C / 71.2°F |
| October | 21.4–24.6°C | 22.5°C / 72.5°F |
| November | 21.1–25.0°C | 23.0°C / 73.4°F |
| December | 21.5–25.0°C | 22.9°C / 73.2°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-0.88, -89.62). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
San Cristóbal in January
Typical January water temperature near San Cristóbal is 24.8°C (76.6°F), with yearly monthly means from 23.8–25.9°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: December 22.9°C · February 27.7°C.
Explore San Cristóbal sea temperature in January, including swim comfort and month comparisons →
San Cristóbal in February
Typical February water temperature near San Cristóbal is 27.7°C (81.9°F), with yearly monthly means from 27.6–27.8°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: January 24.8°C · March 28.0°C.
Explore San Cristóbal sea temperature in February, including swim comfort and month comparisons →
San Cristóbal in March
Typical March water temperature near San Cristóbal is 28.0°C (82.4°F), with yearly monthly means from 27.8–28.4°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 27.7°C · April 26.9°C.
Explore San Cristóbal sea temperature in March, including swim comfort and month comparisons →
San Cristóbal in April
Typical April water temperature near San Cristóbal is 26.9°C (80.4°F), with yearly monthly means from 25.3–28.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: March 28.0°C · May 25.3°C.
Explore San Cristóbal sea temperature in April, including swim comfort and month comparisons →
San Cristóbal in May
Typical May water temperature near San Cristóbal is 25.3°C (77.5°F), with yearly monthly means from 22.9–28.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: April 26.9°C · June 24.4°C.
Explore San Cristóbal sea temperature in May, including swim comfort and month comparisons →
San Cristóbal in June
Typical June water temperature near San Cristóbal is 24.4°C (75.9°F), with yearly monthly means from 21.9–27.4°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: May 25.3°C · July 23.4°C.
Explore San Cristóbal sea temperature in June, including swim comfort and month comparisons →
San Cristóbal in July
Typical July water temperature near San Cristóbal is 23.4°C (74.1°F), with yearly monthly means from 21.8–26.2°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: June 24.4°C · August 22.2°C.
Explore San Cristóbal sea temperature in July, including swim comfort and month comparisons →
San Cristóbal in August
Typical August water temperature near San Cristóbal is 22.2°C (72.0°F), with yearly monthly means from 20.7–25.0°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: July 23.4°C · September 21.8°C.
Explore San Cristóbal sea temperature in August, including swim comfort and month comparisons →
San Cristóbal in September
Typical September water temperature near San Cristóbal is 21.8°C (71.2°F), with yearly monthly means from 19.9–24.4°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: August 22.2°C · October 22.5°C.
Explore San Cristóbal sea temperature in September, including swim comfort and month comparisons →
San Cristóbal in October
Typical October water temperature near San Cristóbal is 22.5°C (72.5°F), with yearly monthly means from 21.4–24.6°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: September 21.8°C · November 23.0°C.
Explore San Cristóbal sea temperature in October, including swim comfort and month comparisons →
San Cristóbal in November
Typical November water temperature near San Cristóbal is 23.0°C (73.4°F), with yearly monthly means from 21.1–25.0°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: October 22.5°C · December 22.9°C.
Explore San Cristóbal sea temperature in November, including swim comfort and month comparisons →
San Cristóbal in December
Typical December water temperature near San Cristóbal is 22.9°C (73.2°F), with yearly monthly means from 21.5–25.0°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: November 23.0°C · January 24.8°C.
Explore San Cristóbal sea temperature in December, including swim comfort and month comparisons →
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 25.8°C / 78.4°F | 26.7°C / 80.0°F | 27.5°C / 81.5°F |
| July | 25.2°C / 77.4°F | 26.0°C / 78.7°F | 27.2°C / 81.0°F |
| August | 24.5°C / 76.1°F | 25.6°C / 78.0°F | 27.0°C / 80.6°F |
| September | 25.3°C / 77.5°F | 26.4°C / 79.5°F | 28.3°C / 82.9°F |
| October | 26.7°C / 80.1°F | 27.6°C / 81.6°F | 28.9°C / 84.0°F |
| November | 28.0°C / 82.4°F | 28.6°C / 83.5°F | 29.0°C / 84.2°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3839 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at San Cristóbal
Galápagos island where sea lions and reef fish fill the shallow Kicker Rock bays.
- Area
- Galápagos
San Cristóbal Water Temperature: Common Questions
What is the water temperature in San Cristóbal today?
The current sea surface temperature near San Cristóbal is 28.3°C (82.9°F). Over the last 30 days, the average has been 27.9°C.
When is the water warmest in San Cristóbal?
The water is typically warmest in March, at around 28.0°C (82.4°F) in the 2022–2025 historical baseline.
When is the water coldest in San Cristóbal?
The water is typically coldest in September, at around 21.8°C (71.2°F) in the same historical baseline.
Can you swim in San Cristóbal today?
At 28.3°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for San Cristóbal.
View Snorkel Forecast →