Nassau Water Temperature
Updated Wed 00:05 (America/Nassau)
Bahamas · Forecast updated Sep 23, 2026, 00:05 UTC
Current Sea Temperature
30.6°C
87.1°F
Very warm water
Valid Sep 23, 2026, 00:05 (America/Nassau). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.3°C above
The typical September average is 30.3°C (86.5°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 30.6°C, versus 30.7°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 Nassau, typical monthly averages range from about 24.0°C (75.2°F) in February to 30.8°C (87.4°F) in August.
Over the past 30 days, the average sea temperature in Nassau has been 30.9°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Nassau, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 23.5–24.6°C | 24.1°C / 75.4°F |
| February | 23.1–24.9°C | 24.0°C / 75.2°F |
| March | 24.5–25.4°C | 24.9°C / 76.8°F |
| April | 25.0–26.6°C | 25.7°C / 78.3°F |
| May | 27.8–28.3°C | 28.0°C / 82.4°F |
| June | 29.2–29.7°C | 29.4°C / 84.9°F |
| July | 29.9–31.3°C | 30.6°C / 87.1°F |
| August | 30.5–31.0°C | 30.8°C / 87.4°F |
| September | 30.2–30.4°C | 30.3°C / 86.5°F |
| October | 28.3–28.9°C | 28.6°C / 83.5°F |
| November | 26.3–26.5°C | 26.4°C / 79.5°F |
| December | 24.3–25.5°C | 24.8°C / 76.6°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (25.04, -77.37). 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.
Nassau in January
Typical January water temperature near Nassau is 24.1°C (75.4°F), with yearly monthly means from 23.5–24.6°C.
Nassau in February
Typical February water temperature near Nassau is 24.0°C (75.2°F), with yearly monthly means from 23.1–24.9°C.
Nassau in March
Typical March water temperature near Nassau is 24.9°C (76.8°F), with yearly monthly means from 24.5–25.4°C.
Nassau in April
Typical April water temperature near Nassau is 25.7°C (78.3°F), with yearly monthly means from 25.0–26.6°C.
Nassau in May
Typical May water temperature near Nassau is 28.0°C (82.4°F), with yearly monthly means from 27.8–28.3°C.
Nassau in June
Typical June water temperature near Nassau is 29.4°C (84.9°F), with yearly monthly means from 29.2–29.7°C.
Nassau in July
Typical July water temperature near Nassau is 30.6°C (87.1°F), with yearly monthly means from 29.9–31.3°C.
Nassau in August
Typical August water temperature near Nassau is 30.8°C (87.4°F), with yearly monthly means from 30.5–31.0°C.
Nassau in September
Typical September water temperature near Nassau is 30.3°C (86.5°F), with yearly monthly means from 30.2–30.4°C.
Nassau in October
Typical October water temperature near Nassau is 28.6°C (83.5°F), with yearly monthly means from 28.3–28.9°C.
Nassau in November
Typical November water temperature near Nassau is 26.4°C (79.5°F), with yearly monthly means from 26.3–26.5°C.
Nassau in December
Typical December water temperature near Nassau is 24.8°C (76.6°F), with yearly monthly means from 24.3–25.5°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 | 28.1°C / 82.6°F | 30.0°C / 86.0°F | 31.3°C / 88.3°F |
| July | 30.6°C / 87.1°F | 31.2°C / 88.1°F | 31.8°C / 89.2°F |
| August | 30.3°C / 86.5°F | 31.2°C / 88.2°F | 32.0°C / 89.6°F |
| September | 30.0°C / 86.0°F | 30.7°C / 87.3°F | 31.6°C / 88.9°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2745 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Nassau
Capital island with shallow reefs, blue holes and clear turquoise shallows.
- Area
- New Providence
Nassau Water Temperature: Common Questions
What is the water temperature in Nassau today?
The current sea surface temperature near Nassau is 30.6°C (87.1°F). Over the last 30 days, the average has been 30.9°C.
When is the water warmest in Nassau?
The water is typically warmest in August, at around 30.8°C (87.4°F) in the 2023–2025 historical baseline.
When is the water coldest in Nassau?
The water is typically coldest in February, at around 24.0°C (75.2°F) in the same historical baseline.
Can you swim in Nassau today?
At 30.6°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 Nassau.
View Snorkel Forecast →