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Monthly climate in Belmopan, Belize

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Belmopan features a tropical monsoon climate (Am). Temperatures typically range between 23 °C (74 °F) and 28 °C (83 °F) through the year, but rarely can drop to 11 °C (51 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1229 mm (48.4 inches) and receives 224 rainy days on the 1 mm (0.04 inches) threshold annually. Belmopan enjoys an average of 3365 hours of sunshine throughout the year, and daylight varies from 11 hours 5 minutes to 13 hours 8 minutes per day.

Monthly average temperatures in Belmopan, Belize

The warmest months in Belmopan are May, August and September, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 23 to 25 °C (74 - 76 °F) throughout the day. On average each year, Belmopan experiences 319 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Belmopan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(95°F)		35°C
(96°F)		35°C
(96°F)		38°C
(101°F)		37°C
(99°F)		36°C
(98°F)		34°C
(94°F)		36°C
(96°F)		37°C
(99°F)		35°C
(96°F)		33°C
(92°F)		32°C
(90°F)
Mean maximum32°C
(89°F)		33°C
(91°F)		34°C
(93°F)		37°C
(98°F)		36°C
(97°F)		34°C
(93°F)		34°C
(93°F)		34°C
(94°F)		35°C
(95°F)		34°C
(94°F)		31°C
(89°F)		31°C
(88°F)
Average high28°C
(82°F)		29°C
(85°F)		30°C
(87°F)		33°C
(91°F)		33°C
(92°F)		32°C
(89°F)		32°C
(90°F)		32°C
(91°F)		33°C
(91°F)		31°C
(88°F)		29°C
(84°F)		28°C
(83°F)
Daily mean23°C
(74°F)		25°C
(77°F)		25°C
(78°F)		27°C
(82°F)		28°C
(83°F)		28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		27°C
(80°F)		25°C
(76°F)		24°C
(75°F)
Average low20°C
(68°F)		21°C
(70°F)		21°C
(71°F)		23°C
(74°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		21°C
(70°F)		20°C
(68°F)
Mean minimum15°C
(59°F)		15°C
(59°F)		17°C
(63°F)		19°C
(67°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		21°C
(70°F)		17°C
(63°F)		13°C
(56°F)
Minimum14°C
(57°F)		11°C
(51°F)		16°C
(61°F)		16°C
(62°F)		20°C
(69°F)		22°C
(71°F)		21°C
(70°F)		21°C
(71°F)		21°C
(71°F)		18°C
(65°F)		16°C
(62°F)		12°C
(54°F)

Compare climate in Belmopan with other places

Compare temperature, precipitation, sunshine, UV index in Belmopan, Belize with other places around the world.

Monthly average precipitation in Belmopan, Belize

Belmopan usually has the most precipitation in June, October and November, with an average of 22 rainy days and 169 mm (6.7 inches) of precipitation per month. The driest months in Belmopan are February, March and April. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Belmopan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)57 (2.3)50 (2.0)41 (1.6)47 (1.8)87 (3.4)178 (7.0)118 (4.6)130 (5.1)128 (5.0)190 (7.5)139 (5.5)64 (2.5)
Average precipitation days (≥ 1 mm)121412101925242524241916

Monthly sunshine hours in Belmopan, Belize

The sunniest months in Belmopan are March, April and May, when the sun shines an average of 10 hours 10 minutes a day. Least sunny months in Belmopan: January, October and November receive an average of 8 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Belmopan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours214261310310314273298304281261260273
Mean daily daylight hours11h 12m11h 34m12h 2m12h 31m12h 56m13h 8m13h 1m12h 40m12h 12m11h 42m11h 18m11h 5m

Solar UV radiation in Belmopan, Belize

Belmopan experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Belmopan UV Index data.

Average daily maximum UV levels by month for Belmopan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911131413131314131298