San Andrés climate
San Andrés (Colombia) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C82 °F, and about 1,535 mm60 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
San Andrés climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2781 | 2780 | 2780 | 431.7 |
| Feb | 2781 | 2680 | 2780 | 140.6 |
| Mar | 2781 | 2680 | 2780 | 100.4 |
| Apr | 2882 | 2781 | 2781 | 230.9 |
| May | 2883 | 2882 | 2882 | 1275.0 |
| Jun | 2883 | 2882 | 2883 | 1917.5 |
| Jul | 2883 | 2882 | 2883 | 1837.2 |
| Aug | 2983 | 2882 | 2883 | 1696.7 |
| Sep | 2984 | 2882 | 2883 | 1797.1 |
| Oct | 2983 | 2882 | 2883 | 26210 |
| Nov | 2883 | 2882 | 2882 | 2439.6 |
| Dec | 2882 | 2781 | 2882 | 913.6 |
| Year | 2984 | 2680 | 2882 | 1,53560 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 43% | 5.1 | 11:28 |
| Feb | 78% | 35% | 5.9 | 11:43 |
| Mar | 78% | 34% | 6.5 | 12:02 |
| Apr | 79% | 50% | 6.5 | 12:24 |
| May | 82% | 74% | 5.6 | 12:42 |
| Jun | 83% | 81% | 5.1 | 12:52 |
| Jul | 83% | 80% | 5.4 | 12:48 |
| Aug | 83% | 75% | 5.5 | 12:32 |
| Sep | 82% | 74% | 5.2 | 12:11 |
| Oct | 82% | 77% | 4.6 | 11:50 |
| Nov | 81% | 71% | 4.2 | 11:32 |
| Dec | 79% | 52% | 4.6 | 11:23 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of San Andrés is like
The warmest month is September, with an average high of 29 °C84 °F and a low of 28 °C82 °F. The coldest is February, when highs average 27 °C81 °F and lows 26 °C80 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 1.6 °C2.9 °F.
It is wet, with about 1,535 mm60 in of precipitation per year. The wettest three-month stretch is September–November, which brings 45% of the annual total. Months with less than 20 mm0.8 in on average: February and March. The wettest month is October (262 mm10 in), the driest is March (10 mm0.4 in).
Relative humidity ranges from 78% in February to 83% in June. The clearest skies (lowest average cloud amount, 34%) are typical of March. Average wind speed near the ground ranges from 15 km/h (9 mph) in September to 25 km/h (15 mph) in January. Daylight lasts from about 11.4 hours in December to 12.9 hours in June.
Best time to visit San Andrés
Based on these averages, the most comfortable months for sightseeing and outdoor activities are January–April: average highs of 27 °C81 °F to 28 °C82 °F with 10 mm0.4 in to 43 mm1.7 in of precipitation per month.
The most challenging month is October, which is very wet (262 mm10 in) and humid (82% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for San Andrés
- Wetter months (June–November) — highs 2883 to 29 °C84 °F, lows around 28 °C82 °F, about 205 mm8.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (December–May) — highs 2781 to 28 °C83 °F, lows 2680 to 28 °C82 °F, about 51 mm2.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How San Andrés compares
Compared with San José, about 393 km to the southwest, San Andrés is on average 7.3 °C13.2 °F warmer and receives 14% less precipitation (1,535 mm60 in vs 1,794 mm71 in). The difference is largest in October (8.7 °C15.6 °F warmer).
Of the 48 places in Colombia covered by World Climates, San Andrés is the 15th warmest by annual mean temperature and the 19th wettest by annual precipitation. See all of them on the Colombia climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Saint Georges (Grenada, Aw), Phan Rang-Tháp Chàm (Vietnam, Aw) and Situbondo (Indonesia, Aw).
Nearby places
- Guápiles 347 km · 25 °C78 °F · 2,265 mm89 in
- San José 393 km · 20 °C69 °F · 1,794 mm71 in
- Upala 406 km · 27 °C81 °F · 1,466 mm58 in
- Puntarenas 448 km · 28 °C83 °F · 1,518 mm60 in
- Matagalpa 459 km · 23 °C74 °F · 1,196 mm47 in
- San Miguelito 462 km · 27 °C81 °F · 1,936 mm76 in
- Panama City 464 km · 28 °C82 °F · 1,936 mm76 in
- Masaya 482 km · 27 °C80 °F · 1,453 mm57 in
Frequently asked questions
What is the warmest month in San Andrés?
September is the warmest month in San Andrés, with an average high of 29 °C (84 °F) and an average low of 28 °C (82 °F).
What is the coldest month in San Andrés?
February is the coldest month, with an average high of 27 °C (81 °F) and an average low of 26 °C (80 °F).
When does it rain the most in San Andrés?
October is the wettest month with about 262 mm (10.3 in) of precipitation; March is the driest with about 10 mm (0.4 in).
What is the best time to visit San Andrés?
Judging by long-term averages, the most comfortable months are January–April.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.