Climate Overview
The climate in San Andrés is warm and mild. The average annual temperature is 25°C and approximately 5245mm of precipitation falls per year. San Andrés receives a notable amount of rainfall throughout the year, including during its driest month. San Andrés sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
San Andrés has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is March, when average highs reach 29°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
San Andrés is a very wet location, receiving approximately 5245mm of precipitation annually, which averages out to around 437mm per month. The wettest month is November, averaging 781mm of rainfall. October and July also tend to see above-average precipitation. The driest month is February, with just 55mm. That's 726mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
San Andrés is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in San Andrés, which began on March 20, 2026. San Andrés sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 29°C, while the coldest stretch bottoms out in January near 21°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 985mm across the season with a monthly average of 328mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 22 to 28°C. Rainfall is heavy, totalling around 1759mm across the season with a monthly average of 586mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 28°C. Rainfall is heavy, totalling around 2045mm across the season with a monthly average of 682mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 21 to 29°C. Rainfall is heavy, totalling around 456mm across the season with a monthly average of 152mm. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for San Andrés based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
