Climate averages 1991–2020
Chetumal weather
in July.
A hot, wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Chetumal: daytime highs average 30.8°C and nights cool to about 24.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 120 mm of rain on roughly 21 days, which makes July a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 08 min on an average July day.
The nearest other city in this atlas is Belmopan (149 km away). In July its highs average 30.1°C, 0.7°C cooler than Chetumal, with 126 mm of rain.
Among the 153 cities listed in Mexico, Chetumal ranks joint 50th of 153 for the warmest July highs and joint 70th of 153 for the driest July (rainfall, lowest first). The mean July high of those 153 cities is 28.0°C; Chetumal is 2.8°C warmer than that mean.
From July to August, average highs rise by 0.3°C to 31.1°C, and monthly rainfall rises from 120 mm to 158 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chetumal climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C20.8°C | 20.8°C | 52 | 12.3 | 11.111 h |
| February | 28.2°C21.6°C | 21.6°C | 24 | 7.2 | 11.512 h |
| March | 29.7°C22.4°C | 22.4°C | 26 | 6.8 | 12.012 h |
| April | 31.3°C24.0°C | 24.0°C | 32 | 7.4 | 12.613 h |
| May | 31.6°C24.8°C | 24.8°C | 93 | 15.3 | 13.013 h |
| June | 30.4°C25.0°C | 25.0°C | 193 | 21.5 | 13.213 h |
| July, selected | 30.8°C24.9°C | 24.9°C | 120 | 20.9 | 13.113 h |
| August | 31.1°C24.9°C | 24.9°C | 158 | 23.2 | 12.813 h |
| September | 30.6°C24.6°C | 24.6°C | 186 | 25.2 | 12.312 h |
| October | 29.2°C23.5°C | 23.5°C | 190 | 21.8 | 11.712 h |
| November | 27.8°C22.0°C | 22.0°C | 96 | 14.8 | 11.311 h |
| December | 27.1°C21.2°C | 21.2°C | 55 | 13.3 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Belmopan in JulyBelize · 149 kmHigh 30.1°C · Low 23.6°C · 126 mm rain
- Cozumel in JulyMexico · 262 kmHigh 28.9°C · Low 27.0°C · 82 mm rain
- Playa del Carmen in JulyMexico · 267 kmHigh 30.0°C · Low 26.1°C · 80 mm rain
- Campeche in JulyMexico · 275 kmHigh 33.6°C · Low 25.2°C · 101 mm rain
- Kanasín in JulyMexico · 299 kmHigh 34.6°C · Low 24.2°C · 85 mm rain
- Puerto Cortez in JulyHonduras · 302 kmHigh 29.2°C · Low 24.4°C · 226 mm rain
- Mérida in JulyMexico · 305 kmHigh 34.2°C · Low 24.3°C · 85 mm rain
- Puerto Barrios in JulyGuatemala · 312 kmHigh 29.1°C · Low 23.9°C · 320 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chetumal) is explained once on the Chetumal year overview and on the Sources, method and limits page.