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Holetown, Barbados climate
Am Tropical monsoon
Holetown has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is August with an average daily high near 31°C, while the coldest is February averaging around 22°C at night. Precipitation totals about 1400 mm a year and is strongly seasonal — October alone averages 195 mm while February barely receives 45 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)Holetown climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 |
| Avg low (°C) | 23 | 22 | 23 | 24 | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 56 | 45 | 46 | 67 | 116 | 101 | 131 | 167 | 189 | 195 | 169 | 119 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 29 | 30 | 30 | 31 | 31 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 23 | 22 | 23 | 24 | 25 | 25 |
| Precipitation (mm) | 56 | 45 | 46 | 67 | 116 | 101 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 31 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 27 | 27 |
| Avg low (°C) | 24 | 25 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 131 | 167 | 189 | 195 | 169 | 119 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 14 | 12 | 12 | 13 | 17 | 21 | 20 | 18 | 20 | 18 | 15 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 0.3 | — | 2 | 3 | 1 | 0.1 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 14 | 12 | 12 | 13 | 17 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 21 | 20 | 18 | 20 | 18 | 15 |
| Days with high ≥ 32°C (days) | — | 2 | 3 | 1 | 0.1 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 44 | 47 | 53 | 55 | 62 | 51 | 48 | 53 | 56 | 52 | 43 |
| Relative humidity (%) | 75 | 75 | 75 | 76 | 77 | 79 | 79 | 80 | 79 | 80 | 80 | 77 |
| Wind speed (mph) | 15.1 | 15.0 | 14.1 | 13.8 | 14.0 | 15.2 | 14.2 | 12.2 | 10.8 | 11.5 | 12.8 | 14.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 44 | 47 | 53 | 55 | 62 |
| Relative humidity (%) | 75 | 75 | 75 | 76 | 77 | 79 |
| Wind speed (mph) | 15.1 | 15.0 | 14.1 | 13.8 | 14.0 | 15.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 48 | 53 | 56 | 52 | 43 |
| Relative humidity (%) | 79 | 80 | 79 | 80 | 80 | 77 |
| Wind speed (mph) | 14.2 | 12.2 | 10.8 | 11.5 | 12.8 | 14.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 11 years of daily observations at Grantley Adams, a weather station, about 21 km from the city centre. The underlying daily records come from NOAA's global station network.
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.