Belize City, Belize Climate & Monthly Averages

The climate of Belize City

Temperature barely moves in Belize City - 4°C between the average May and the average January. Rainfall does the work instead: 10.7 inches (272 mm) in October against 2.2 inches (56 mm) in April.

Climate quick facts

• Hottest month: May - highs near 85°F (30°C)
• Coldest month: January - highs near 79°F (26°C)
• Decade extremes (2015-2024): 95°F (35°C) high · 60°F (16°C) low
• Wettest month: October (24 rainy days) · Sunniest: April (11.7 h sun/day)
• Climate type: tropical wet-and-dry
• Annual swing: 4°C between the average warmest and coolest month · day to night: 4°C
• Average humidity: 83%

Temperatures through the year

January bottoms out at 79°F (26°C) in daylight, 72°F (22°C) after dark. At its warmest, in May, Belize City runs to 85°F (30°C) in the afternoon and back to 79°F (26°C) by dawn. The wettest month is October (10.7 inches (272 mm) across 24 days) and the driest April.

Rain, sun and snow

Sunshine averages 10.4 hours a day over the year - sunnier than roughly 78% of the cities we track, peaking in April at 11.7 hours. Relative humidity averages 83% across the year, more humid than 94% of the 3496 cities in our dataset - enough that summer afternoons feel hotter than the thermometer says, which is what the dew point converter is for. Days and nights are about 4°C apart on average - narrower than almost anywhere else we cover. The gridded 2015-2024 daily record for this location tops out at 95°F (35°C) and bottoms at 60°F (16°C) - decade extremes, not all-time station records.

How Belize City compares

• Rain or snow reaches the ground on 245 days a year - more wet days than 95% of the 3496 cities we track.
• Belize City averages 80°F (26°C) across the year - warmer than 91% of the 3496 cities we track.
• Annual precipitation is 74.9 inches (1903 mm) - wetter than 91% of the 3496 cities we track.

Ranked against every city in our dataset, each measured on the same ten-year window.

Best time to visit Belize City

Aim for December to April if you get the choice: humidity and rainfall are at their lowest, which is what actually varies here, and highs average 81°F (27°C) against roughly 16 wet days a month. For the same question asked the other way round, see where else is warm in December.

Pack for Belize City with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. May nights average 79°F (26°C), so evenings rarely match the afternoons.