Belize City, Belize Climate & Monthly Averages
Belize City has a tropical wet-and-dry climate. May is the hottest month, averaging 85° by day; January is the coldest at 79°.
Rain, not cold, divides the year in 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.
The wet-and-dry rhythm at a glance
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.
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.
More climate facts for Belize City
- 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%
Choosing the right part of the year in Belize City
Choose dates by rain, not just temperature
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.
What the humidity changes
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.
Warm all year: the monthly rain pattern
Each card shows the average high and low. The bar places that month between Belize City's coldest night and warmest afternoon.
January
- Rain
- 17 days
- Sunshine
- 9.7 h
- Daylight
- 11.2 h
February
- Rain
- 14 days
- Sunshine
- 10.5 h
- Daylight
- 11.6 h
March
- Rain
- 14 days
- Sunshine
- 11.5 h
- Daylight
- 12.0 h
April
- Rain
- 11 days
- Sunshine
- 11.7 h
- Daylight
- 12.5 h
May
- Rain
- 19 days
- Sunshine
- 11.4 h
- Daylight
- 12.9 h
June
- Rain
- 25 days
- Sunshine
- 9.6 h
- Daylight
- 13.2 h
July
- Rain
- 25 days
- Sunshine
- 10.9 h
- Daylight
- 13.1 h
August
- Rain
- 26 days
- Sunshine
- 10.8 h
- Daylight
- 12.7 h
September
- Rain
- 27 days
- Sunshine
- 10.5 h
- Daylight
- 12.2 h
October
- Rain
- 24 days
- Sunshine
- 9.6 h
- Daylight
- 11.7 h
November
- Rain
- 22 days
- Sunshine
- 9.5 h
- Daylight
- 11.3 h
December
- Rain
- 22 days
- Sunshine
- 9.3 h
- Daylight
- 11.1 h
Looking for warmer alternatives? Browse warm places by month, or compare Belize City's coolest part of the year: January, February, December.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 79° | 72° | 17 | 4.1 in | 9.7 h/day | 11.2 h | 55% | 82% |
| February | 80° | 74° | 14 | 2.3 in | 10.5 h/day | 11.6 h | 51% | 80% |
| March | 82° | 76° | 14 | 2.4 in | 11.5 h/day | 12.0 h | 45% | 80% |
| April | 84° | 78° | 11 | 2.2 in | 11.7 h/day | 12.5 h | 36% | 80% |
| May | 85° | 79° | 19 | 4.6 in | 11.4 h/day | 12.9 h | 60% | 81% |
| June | 85° | 79° | 25 | 10.0 in | 9.6 h/day | 13.2 h | 82% | 84% |
| July | 85° | 79° | 25 | 7.1 in | 10.9 h/day | 13.1 h | 80% | 83% |
| August | 85° | 79° | 26 | 7.8 in | 10.8 h/day | 12.7 h | 83% | 84% |
| September | 85° | 78° | 27 | 8.4 in | 10.5 h/day | 12.2 h | 91% | 85% |
| October | 84° | 76° | 24 | 10.7 in | 9.6 h/day | 11.7 h | 77% | 85% |
| November | 82° | 74° | 22 | 9.4 in | 9.5 h/day | 11.3 h | 73% | 85% |
| December | 80° | 73° | 22 | 5.9 in | 9.3 h/day | 11.1 h | 70% | 84% |
How Belize City compares for rain and warmth
- 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.
These comparisons use the same ten-year window for every city in the dataset.
How the calendar changes in warm-weather Belize City
March through May
March through May is hot here - highs near 84°F (29°C), nights near 77°F (25°C), and rain falls on around 43 of the 90 days. Daylight is generous - around 11.5 hours of sun a day.
June through August
Through June through August, Belize City sits firmly in the heat: 85°F (30°C) by day, 79°F (26°C) after dark, and rain falls on around 75 of the 90 days. Daylight is generous - around 10.4 hours of sun a day.
September through November
Through September through November, Belize City is hot: 84°F (29°C) by day, 76°F (24°C) after dark, and rain falls on around 73 of the 90 days.
December through February
December through February in Belize City settles into easy warmth, with daytime highs averaging 80°F (27°C) and nights around 73°F (23°C); rain falls on around 53 of the 90 days.
Questions about heat and rain in Belize City
Is Belize City warmer or cooler than most cities?
Does Belize City have seasons?
How hot does Belize City get in summer?
How warm is Belize City on average?
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Belize City temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.