Cayo Coco Water Temperature
Updated Fri 12:43 (America/Havana)
Cuba · Forecast updated Sep 25, 2026, 12:43 UTC
Current Sea Temperature
30.2°C
86.4°F
Very warm water
Valid Sep 25, 2026, 12:43 (America/Havana). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
1.0°C below
The typical September average is 31.2°C (88.2°F) from the historical baseline.
Recent trend
Cooling by 0.4°C
Seven-day average: 30.9°C, versus 31.3°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 Cayo Coco, typical monthly averages range from about 24.8°C (76.6°F) in February to 31.2°C (88.2°F) in September.
Over the past 30 days, the average sea temperature in Cayo Coco has been 31.3°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Cayo Coco, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 24.5–25.6°C | 25.1°C / 77.2°F |
| February | 24.1–25.5°C | 24.8°C / 76.6°F |
| March | 26.5–26.6°C | 26.5°C / 79.7°F |
| April | 26.7–28.1°C | 27.2°C / 81.0°F |
| May | 28.4–30.0°C | 29.2°C / 84.6°F |
| June | 29.4–30.4°C | 30.0°C / 86.0°F |
| July | 30.0–31.2°C | 30.6°C / 87.1°F |
| August | 31.0–31.3°C | 31.1°C / 88.0°F |
| September | 31.0–31.5°C | 31.2°C / 88.2°F |
| October | 29.7–30.0°C | 29.9°C / 85.8°F |
| November | 27.1–27.6°C | 27.3°C / 81.1°F |
| December | 25.4–26.4°C | 25.8°C / 78.4°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (22.54, -78.54). 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 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Cayo Coco in January
Typical January water temperature near Cayo Coco is 25.1°C (77.2°F), with yearly monthly means from 24.5–25.6°C.
Cayo Coco in February
Typical February water temperature near Cayo Coco is 24.8°C (76.6°F), with yearly monthly means from 24.1–25.5°C.
Cayo Coco in March
Typical March water temperature near Cayo Coco is 26.5°C (79.7°F), with yearly monthly means from 26.5–26.6°C.
Cayo Coco in April
Typical April water temperature near Cayo Coco is 27.2°C (81.0°F), with yearly monthly means from 26.7–28.1°C.
Cayo Coco in May
Typical May water temperature near Cayo Coco is 29.2°C (84.6°F), with yearly monthly means from 28.4–30.0°C.
Cayo Coco in June
Typical June water temperature near Cayo Coco is 30.0°C (86.0°F), with yearly monthly means from 29.4–30.4°C.
Cayo Coco in July
Typical July water temperature near Cayo Coco is 30.6°C (87.1°F), with yearly monthly means from 30.0–31.2°C.
Cayo Coco in August
Typical August water temperature near Cayo Coco is 31.1°C (88.0°F), with yearly monthly means from 31.0–31.3°C.
Cayo Coco in September
Typical September water temperature near Cayo Coco is 31.2°C (88.2°F), with yearly monthly means from 31.0–31.5°C.
Cayo Coco in October
Typical October water temperature near Cayo Coco is 29.9°C (85.8°F), with yearly monthly means from 29.7–30.0°C.
Cayo Coco in November
Typical November water temperature near Cayo Coco is 27.3°C (81.1°F), with yearly monthly means from 27.1–27.6°C.
Cayo Coco in December
Typical December water temperature near Cayo Coco is 25.8°C (78.4°F), with yearly monthly means from 25.4–26.4°C.
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 | 30.0°C / 86.0°F | 30.8°C / 87.5°F | 31.9°C / 89.4°F |
| July | 29.7°C / 85.5°F | 30.8°C / 87.4°F | 32.5°C / 90.5°F |
| August | 30.1°C / 86.2°F | 31.0°C / 87.9°F | 32.4°C / 90.3°F |
| September | 30.2°C / 86.4°F | 31.3°C / 88.3°F | 32.4°C / 90.3°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2805 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Cayo Coco
Cay on Cuba's northern reef with calm, clear turquoise shallows.
- Area
- Ciego de Ávila
Cayo Coco Water Temperature: Common Questions
What is the water temperature in Cayo Coco today?
The current sea surface temperature near Cayo Coco is 30.2°C (86.4°F). Over the last 30 days, the average has been 31.3°C.
When is the water warmest in Cayo Coco?
The water is typically warmest in September, at around 31.2°C (88.2°F) in the 2023–2025 historical baseline.
When is the water coldest in Cayo Coco?
The water is typically coldest in February, at around 24.8°C (76.6°F) in the same historical baseline.
Can you swim in Cayo Coco today?
At 30.2°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 Cayo Coco.
View Snorkel Forecast →