Belize City, Belize Climate
The warmest month is May, with an average high of 30°C; the coldest is January, with an average low of 24°C. A normal year brings 1557 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 24
- Normal high
- 29°C
- Normal low
- 27°C
- Reanalysis high
- 33°Cin 2019
- Reanalysis low
- 26°Cin 2009
- Chance of a wet day
- 81%
- Daylight
- 12 h 05 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 27°C | 24°C | 31°C (1995) | 17°C (2010) | 109 mm | 15.5 |
| February | 27°C | 24°C | 34°C (2003) | 18°C (2006) | 51 mm | 8.5 |
| March | 28°C | 25°C | 35°C (2005) | 18°C (1993) | 40 mm | 6.2 |
| April | 30°C | 26°C | 35°C (2004) | 22°C (2018) | 36 mm | 6.0 |
| May | 30°C | 27°C | 35°C (1994) | 24°C (2015) | 105 mm | 12.4 |
| June | 30°C | 27°C | 34°C (1995) | 25°C (1994) | 192 mm | 18.0 |
| July | 29°C | 27°C | 32°C (2005) | 25°C (1999) | 149 mm | 21.7 |
| August | 30°C | 27°C | 33°C (2019) | 25°C (1991) | 161 mm | 21.7 |
| September | 30°C | 27°C | 33°C (2004) | 25°C (2001) | 183 mm | 24.0 |
| October | 29°C | 26°C | 32°C (1993) | 22°C (1999) | 236 mm | 21.7 |
| November | 28°C | 25°C | 31°C (1997) | 18°C (2006) | 174 mm | 18.0 |
| December | 27°C | 24°C | 30°C (1997) | 18°C (2010) | 121 mm | 18.6 |
| Year | 29°C | 26°C | 1557 mm | 192 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1557 mm in a normal year, most in October.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Belize City.
The muggiest month is May, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 21°C | 79% | 0% | 1% | 11% | 27% | 61% | 1% |
| February | 21°C | 77% | 0% | 1% | 6% | 30% | 61% | 1% |
| March | 21°C | 75% | 0% | 1% | 7% | 27% | 63% | 2% |
| April | 23°C | 75% | 0% | 0% | 2% | 11% | 72% | 14% |
| May | 24°C | 77% | 0% | 0% | 0% | 2% | 57% | 41% |
| June | 25°C | 81% | 0% | 0% | 0% | 0% | 17% | 83% |
| July | 24°C | 81% | 0% | 0% | 0% | 0% | 20% | 80% |
| August | 25°C | 81% | 0% | 0% | 0% | 0% | 15% | 85% |
| September | 25°C | 82% | 0% | 0% | 0% | 0% | 8% | 92% |
| October | 24°C | 83% | 0% | 0% | 0% | 2% | 28% | 70% |
| November | 23°C | 82% | 0% | 0% | 2% | 15% | 54% | 28% |
| December | 22°C | 81% | 0% | 1% | 6% | 22% | 65% | 6% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is March, with the sky 35 percent covered on average; the cloudiest is June, at 66 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is June, averaging 16.6 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 15, with 13 h 11 min of daylight; the shortest is Dec 15, with 11 h 05 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Belize City in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.