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Culebra, Puerto Rico climate
Aw Tropical savanna (dry winter)
Culebra has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around 23°C at night. Around 1035 mm of precipitation falls each year, peaking in November (155 mm) and easing off in March (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)Culebra climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 31 | 30 | 30 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 27 |
| Avg low (°C) | 23 | 23 | 23 | 24 | 25 | 26 | 26 | 26 | 26 | 25 | 24 | 23 |
| Precipitation (mm) | 58 | 50 | 45 | 59 | 79 | 62 | 78 | 107 | 124 | 140 | 155 | 77 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 30 | 31 | 32 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 29 |
| Avg low (°C) | 23 | 23 | 23 | 24 | 25 | 26 |
| Precipitation (mm) | 58 | 50 | 45 | 59 | 79 | 62 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 31 | 30 | 30 |
| Avg temp (°C) | 29 | 29 | 29 | 28 | 27 | 27 |
| Avg low (°C) | 26 | 26 | 26 | 25 | 24 | 23 |
| Precipitation (mm) | 78 | 107 | 124 | 140 | 155 | 77 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 12 | 9 | 10 | 11 | 10 | 13 | 15 | 14 | 16 | 17 | 16 |
| Days with high ≥ 32°C (days) | 1 | 2 | 3 | 4 | 5 | 10 | 14 | 15 | 12 | 7 | 2 | 2 |
| Days with low ≤ 0°C (days) | 0.0 | — | — | — | — | — | — | 0.0 | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 12 | 9 | 10 | 11 | 10 |
| Days with high ≥ 32°C (days) | 1 | 2 | 3 | 4 | 5 | 10 |
| Days with low ≤ 0°C (days) | 0.0 | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 15 | 14 | 16 | 17 | 16 |
| Days with high ≥ 32°C (days) | 14 | 15 | 12 | 7 | 2 | 2 |
| Days with low ≤ 0°C (days) | — | 0.0 | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 37 | 39 | 40 | 55 | 53 | 47 | 45 | 51 | 49 | 47 | 41 |
| Relative humidity (%) | 76 | 75 | 75 | 76 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 76 |
| Wind speed (m/s) | 5.9 | 5.8 | 5.4 | 5.2 | 5.2 | 5.7 | 6.1 | 5.7 | 4.9 | 4.7 | 5.3 | 5.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 37 | 39 | 40 | 55 | 53 |
| Relative humidity (%) | 76 | 75 | 75 | 76 | 79 | 79 |
| Wind speed (m/s) | 5.9 | 5.8 | 5.4 | 5.2 | 5.2 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 45 | 51 | 49 | 47 | 41 |
| Relative humidity (%) | 79 | 78 | 78 | 78 | 78 | 76 |
| Wind speed (m/s) | 6.1 | 5.7 | 4.9 | 4.7 | 5.3 | 5.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Cyril E King AP, a weather station, about 34 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.