Climate Insights for Luis Muñoz Marín International Airport

The climate in Luis Muñoz Marín International Airport is hot. The average annual temperature is 26°C and approximately 1228mm of precipitation falls per year. Luis Muñoz Marín International Airport receives a notable amount of rainfall throughout the year, including during its driest month. Luis Muñoz Marín International Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, October. The coldest months are February, March, January, when temperatures can drop to 22°C.

Luis Muñoz Marín International Airport has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is September, when average highs reach 30°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.

Luis Muñoz Marín International Airport is a fairly wet location, receiving approximately 1228mm of precipitation annually, which averages out to around 102mm per month. The wettest month is September, averaging 182mm of rainfall. October and November also tend to see above-average precipitation. The driest month is January, with just 44mm. That's 137mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Luis Muñoz Marín International Airport is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.

It is currently spring in Luis Muñoz Marín International Airport, which began on March 20, 2026. Luis Muñoz Marín International Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in September at around 30°C, while the coldest stretch bottoms out in February near 22°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Luis Muñoz Marín International Airport is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 52mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Luis Muñoz Marín International Airport 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.