Climate Overview
The climate in Belize City is hot. The average annual temperature is 27°C and approximately 1715mm of precipitation falls per year. Belize City receives a notable amount of rainfall throughout the year, including during its driest month. Belize City is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, July. The coldest months are January, February, December, when temperatures can drop to 24°C.
Temperature
Belize City has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is September, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Belize City is a fairly wet location, receiving approximately 1715mm of precipitation annually, which averages out to around 143mm per month. The wettest month is November, averaging 297mm of rainfall. October and June also tend to see above-average precipitation. The driest month is April, with just 32mm. That's 265mm 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
Belize City is moderately windy, with an average annual wind speed of 28km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in October, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Belize City, which began on March 20, 2026. Belize City 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 29°C, while the coldest stretch bottoms out in January near 24°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 26 to 28°C. Rainfall is relatively light, with around 144mm over the season and a monthly average of 48mm. Winds are strong, averaging 29km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 523mm across the season with a monthly average of 174mm. Winds are strong, averaging 29km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 761mm across the season with a monthly average of 254mm. Winds are moderate at around 25km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 27°C. Precipitation is moderate at around 287mm for the season, averaging 96mm per month. Winds are strong, averaging 28km/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 Belize City 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.
