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San Andrés, Colombia climate
Aw Tropical savanna (dry winter)
San Andrés has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is September with an average daily high near 88°F, while the coldest is February averaging around 77°F at night. Precipitation totals about 65 inches a year and is strongly seasonal — October alone averages 11.6 inches while March barely receives 1.00 inches.
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)San Andrés climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 85 | 85 | 86 | 87 | 87 | 86 | 87 | 88 | 87 | 86 | 85 |
| Avg temp (°F) | 81 | 81 | 81 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 81 |
| Avg low (°F) | 77 | 77 | 78 | 79 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 |
| Precipitation (in) | 2.9 | 1.4 | 1.0 | 1.3 | 5.0 | 6.1 | 5.9 | 6.2 | 7.8 | 11.6 | 10.3 | 5.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 85 | 85 | 86 | 87 | 87 |
| Avg temp (°F) | 81 | 81 | 81 | 83 | 83 | 83 |
| Avg low (°F) | 77 | 77 | 78 | 79 | 79 | 79 |
| Precipitation (in) | 2.9 | 1.4 | 1.0 | 1.3 | 5.0 | 6.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 87 | 88 | 87 | 86 | 85 |
| Avg temp (°F) | 83 | 83 | 83 | 82 | 82 | 81 |
| Avg low (°F) | 79 | 79 | 78 | 78 | 78 | 78 |
| Precipitation (in) | 5.9 | 6.2 | 7.8 | 11.6 | 10.3 | 5.0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 9 | 6 | 5 | 10 | 13 | 17 | 15 | 14 | 15 | 15 | 14 |
| Days with high ≥ 90°F (days) | 0.1 | 0.1 | 0.1 | 0.4 | 1 | 1 | 0.5 | 2 | 2 | 1 | 0.1 | — |
| Days with low ≤ 32°F (days) | 0.1 | 0.2 | 0.1 | 0.1 | 0.3 | 0.4 | 0.2 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 9 | 6 | 5 | 10 | 13 |
| Days with high ≥ 90°F (days) | 0.1 | 0.1 | 0.1 | 0.4 | 1 | 1 |
| Days with low ≤ 32°F (days) | 0.1 | 0.2 | 0.1 | 0.1 | 0.3 | 0.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 15 | 14 | 15 | 15 | 14 |
| Days with high ≥ 90°F (days) | 0.5 | 2 | 2 | 1 | 0.1 | — |
| Days with low ≤ 32°F (days) | 0.2 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 38 | 35 | 49 | 72 | 79 | 79 | 75 | 74 | 76 | 70 | 53 |
| Relative humidity (%) | 78 | 78 | 78 | 79 | 82 | 83 | 83 | 83 | 82 | 82 | 81 | 79 |
| Wind speed (mph) | 15.2 | 14.6 | 13.3 | 12.4 | 11.7 | 12.5 | 14.0 | 11.6 | 9.1 | 9.8 | 13.1 | 14.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 38 | 35 | 49 | 72 | 79 |
| Relative humidity (%) | 78 | 78 | 78 | 79 | 82 | 83 |
| Wind speed (mph) | 15.2 | 14.6 | 13.3 | 12.4 | 11.7 | 12.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 75 | 74 | 76 | 70 | 53 |
| Relative humidity (%) | 83 | 83 | 82 | 82 | 81 | 79 |
| Wind speed (mph) | 14.0 | 11.6 | 9.1 | 9.8 | 13.1 | 14.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 19 years of daily observations at San Andres (isla)/s, a weather station, about 2 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.