Climate Insights for Belmopan

The climate in Belmopan is hot. The average annual temperature is 26°C and approximately 1231mm of precipitation falls per year. Belmopan receives a notable amount of rainfall throughout the year, including during its driest month. Belmopan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, September. The coldest months are January, February, December, when temperatures can drop to 20°C.

Belmopan sees moderate temperature variation throughout the year, ranging from 20°C to 33°C. The warmest month is May, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 20°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Belmopan is a fairly wet location, receiving approximately 1231mm of precipitation annually, which averages out to around 103mm per month. The wettest month is June, averaging 170mm of rainfall. October and November also tend to see above-average precipitation. The driest month is April, with just 41mm. That's 129mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Belmopan is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 11km/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 Belmopan, which began on March 20, 2026. Belmopan 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 May at around 33°C, while the coldest stretch bottoms out in January near 20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Belmopan is during January, February and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 61mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 33°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 Belmopan 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.