Nassau climate — normals and trends
Nassau (Bahamas) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.9 °C and it receives 925 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (27.8 °C on average) and the coldest is February (22.2 °C). Rainfall peaks in October.
Nassau averages 0 frost days, 0 hot days (≥ 30 °C) and 140 rainy days per year.
Nassau has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.1 °C (on 30 August 2023) and the coldest 12.6 °C (on 19 January 1977).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
NassauNew Providence
- coords
- 25.06°, -77.34°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.9°C
Average daily high
25.6°C
Average daily low
24.2°C
Annual rainfall
925mm
Sunshine / day
10.8h
Mean relative humidity
77%
Average peak wind
27.3km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.0 °C
Average feels-like low
24.9 °C
Average peak gust
37.8 km/h
Tropical nights (≥ 20 °C)
347 d/yr
Solar radiation
19.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.34 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
31.1 °C
30 August 2023
Coldest day
12.6 °C
19 January 1977
Wettest day
239 mm
30 April 2001
Windiest day
101.4 km/h
6 October 2016
Strongest gust
152.6 km/h
3 September 2004
Hottest feels-like
38.7 °C
31 August 2023
Coldest feels-like
3.4 °C
19 January 1977
Sunniest day
13.5 h
17 June 1944
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 23.0 °C | -0.1 °C | 7 mm | -37 mm |
| Feb | 24.1 °C | +1.1 °C | 38 mm | +1 mm |
| Mar | 23.9 °C | +0.5 °C | 33 mm | -1 mm |
| Apr | 24.6 °C | +0.4 °C | 28 mm | -12 mm |
| May | 26.8 °C | +1.2 °C | 33 mm | -42 mm |
| Jun | 28.0 °C | +0.7 °C | 103 mm | -6 mm |
| Jul | 28.8 °C | +0.6 °C | 63 mm | -12 mm |
| Aug | 29.3 °C | +0.8 °C | 95 mm | -13 mm |
| Sep | 28.7 °C | +0.6 °C | 316 mm | +173 mm |
| Oct | 27.4 °C | +0.4 °C | 161 mm | +12 mm |
| Nov | 25.5 °C | +0.2 °C | 110 mm | +44 mm |
| Dec | 24.7 °C | +0.7 °C | 57 mm | +13 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Nassau?
Nassau has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.9 °C and it receives 925 mm of precipitation per year.
What is the hottest day ever recorded in Nassau?
The hottest day measured in Nassau between 1940 and 2025 was 30 August 2023, reaching 31.1 °C.
What is the coldest day in Nassau?
The coldest day measured in Nassau between 1940 and 2025 was 19 January 1977, at 12.6 °C.
Does it snow in Nassau?
Almost never: Nassau sees virtually no snow, with about 0 frost days per year.
Has the climate of Nassau warmed?
Yes: Nassau warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nassau?
The wettest day measured in Nassau between 1940 and 2025 was 30 April 2001, with 239 mm of rain in 24 hours.
What was the windiest day in Nassau?
The windiest day measured in Nassau between 1940 and 2025 was 6 October 2016, with winds reaching 101.4 km/h.
What is the warmest month in Nassau?
The warmest month in Nassau is August (27.8 °C on average); the coldest is February (22.2 °C).
How much does it rain in Nassau?
Nassau receives on average 925 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Nassau?
Nassau gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Nassau?
Yes: Nassau has on average 347 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nassau?
In Nassau, between 1940 and 2025, the highest apparent temperature reached 38.7 °C on 31 August 2023, and the lowest was 3.4 °C on 19 January 1977.
Compare Nassau with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nassau