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Port Nelson, Bahamas climate
BSh Hot semi-arid
Port Nelson has a remarkably steady tropical climate (Hot semi-arid, Köppen BSh). The hottest month is August with an average daily high near 29°C, while the coldest is February averaging around 23°C at night. Precipitation totals about 597 mm a year and is strongly seasonal — October alone averages 84 mm while February barely receives 21 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Port Nelson climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 26 | 27 | 28 | 29 | 29 | 29 | 28 | 27 | 26 |
| Avg temp (°C) | 24 | 24 | 24 | 25 | 26 | 28 | 28 | 29 | 29 | 28 | 26 | 25 |
| Avg low (°C) | 23 | 23 | 23 | 24 | 25 | 27 | 28 | 28 | 28 | 27 | 26 | 24 |
| Precipitation (mm) | 33 | 21 | 21 | 34 | 63 | 64 | 51 | 60 | 71 | 84 | 63 | 34 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 26 | 27 | 28 |
| Avg temp (°C) | 24 | 24 | 24 | 25 | 26 | 28 |
| Avg low (°C) | 23 | 23 | 23 | 24 | 25 | 27 |
| Precipitation (mm) | 33 | 21 | 21 | 34 | 63 | 64 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 28 | 27 | 26 |
| Avg temp (°C) | 28 | 29 | 29 | 28 | 26 | 25 |
| Avg low (°C) | 28 | 28 | 28 | 27 | 26 | 24 |
| Precipitation (mm) | 51 | 60 | 71 | 84 | 63 | 34 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 37 | 40 | 39 | 49 | 54 | 40 | 41 | 50 | 53 | 49 | 45 |
| Relative humidity (%) | 76 | 75 | 75 | 76 | 78 | 79 | 78 | 77 | 77 | 77 | 76 | 76 |
| Wind speed (mph) | 12.6 | 12.3 | 12.1 | 11.8 | 11.1 | 10.4 | 11.5 | 11.0 | 10.2 | 11.2 | 12.9 | 12.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 37 | 40 | 39 | 49 | 54 |
| Relative humidity (%) | 76 | 75 | 75 | 76 | 78 | 79 |
| Wind speed (mph) | 12.6 | 12.3 | 12.1 | 11.8 | 11.1 | 10.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 40 | 41 | 50 | 53 | 49 | 45 |
| Relative humidity (%) | 78 | 77 | 77 | 77 | 76 | 76 |
| Wind speed (mph) | 11.5 | 11.0 | 10.2 | 11.2 | 12.9 | 12.9 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.