SeasonMapSan Andrés weather in May
Colombia
May in San Andrés: sweltering, rainy, with clean air — fine if you can take 20 rainy days.
#6 of 12 months in San Andrés · #816 of 1383 destinations to visit in May · comfort 78/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on San Andrés in May
Other months in San Andrés
San Andrés's forum calls April hot and sunny, though high season with more tourists and higher prices than the quieter shoulder months. Regulars are consistent that the typical pattern is sunny mornings turning to cloud or rain in the afternoon, and flag the island's weather as genuinely hard to forecast given its exposure to El Niño/La Niña swings — March is often cited as the calmer, cheaper alternative with similarly good weather.
Add your own note from San Andrés's card on the map.
San Andrés climate normals — May
| Daytime high | 31°C / 89°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 36°C / 97°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 138 mm / 5.4 in | 🌧 rainy |
| Rainy days | 20 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 25°C / 77°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12.7 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Andrés in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonan ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for San Andrés's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSan Andrés's weather peaks February–April, best around March.
Best weatherFair weatherToughest weather
What's on in San Andrés in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Tourist card required to land
1 Jan – 31 DecEveryone who is not a registered islander buys a tourist card before boarding, Colombians included, and it is checked at the airport door. The price is set each January and it is not optional. Source ↗
- Hazard
Sargassum on the windward beaches
1 Apr – 31 Aug · usuallySargassum seasonSome years the Atlantic drift piles brown weed on the east-facing beaches for weeks and the hotels rake it off each morning. Bad years and clear years alternate with no useful warning. Source ↗
Nearby, and something's on
Within 300 km of San Andrés — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is San Andrés?
San Andrés in May — FAQ
- Is May a good time to visit San Andrés?
- May in San Andrés: sweltering, rainy, with clean air — fine if you can take 20 rainy days. It ranks #6 of 12 months for San Andrés on SeasonMap's comfort score (78/100).
- What is the weather like in San Andrés in May?
- In May, San Andrés averages a daily high of 31.4°C and a low of 26.7°C, with about 137.9 mm of rain over roughly 20 rainy days.
- What is the air quality in San Andrés in May?
- San Andrés has a mean US Air Quality Index of about 50 in May.
Other months in San Andrés
Compare San Andrés in May
Warmer or cooler than San Andrés in May
Similar destinations in South America — May
Within 300 km: Tortuguero's Leatherback nesting around 1 Mar – 31 May.