Climate averages 1991–2020
Mérida weather
in August.
A very hot, wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Mérida: daytime highs average 34.1°C and nights cool to about 24.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 95 mm of rain on roughly 17 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 51 min on an average August day.
The nearest other city in this atlas is Kanasín (8 km away). In August its highs average 34.5°C, about as warm as Mérida, with 95 mm of rain.
Among the 153 cities listed in Mexico, Mérida ranks 15th of 153 for the warmest August highs and joint 49th of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; Mérida is 6.2°C warmer than that mean.
From August to September, average highs fall by 1.3°C to 32.8°C, and monthly rainfall rises from 95 mm to 134 mm.
The annual picture
August 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
Mérida climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.6°C19.1°C | 19.1°C | 21 | 4.2 | 11.011 h |
| February | 30.5°C19.9°C | 19.9°C | 15 | 3.0 | 11.411 h |
| March | 32.8°C21.0°C | 21.0°C | 14 | 3.0 | 12.012 h |
| April | 35.2°C22.9°C | 22.9°C | 23 | 4.4 | 12.613 h |
| May | 35.7°C24.3°C | 24.3°C | 51 | 7.8 | 13.113 h |
| June | 34.0°C24.6°C | 24.6°C | 124 | 16.6 | 13.413 h |
| July | 34.2°C24.3°C | 24.3°C | 85 | 15.6 | 13.313 h |
| August, selected | 34.1°C24.4°C | 24.4°C | 95 | 17.0 | 12.813 h |
| September | 32.8°C24.1°C | 24.1°C | 134 | 19.2 | 12.312 h |
| October | 30.9°C23.0°C | 23.0°C | 86 | 13.6 | 11.712 h |
| November | 29.5°C21.0°C | 21.0°C | 30 | 5.7 | 11.211 h |
| December | 28.8°C19.8°C | 19.8°C | 22 | 4.2 | 10.911 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
August in nearby cities
- Kanasín in AugustMexico · 8 kmHigh 34.5°C · Low 24.3°C · 95 mm rain
- Campeche in AugustMexico · 156 kmHigh 33.2°C · Low 25.3°C · 126 mm rain
- Playa del Carmen in AugustMexico · 267 kmHigh 30.1°C · Low 26.1°C · 99 mm rain
- Cozumel in AugustMexico · 284 kmHigh 29.1°C · Low 27.0°C · 107 mm rain
- Cancún in AugustMexico · 289 kmHigh 29.8°C · Low 26.4°C · 87 mm rain
- Chetumal in AugustMexico · 305 kmHigh 31.1°C · Low 24.9°C · 158 mm rain
- Ciudad del Carmen in AugustMexico · 346 kmHigh 30.2°C · Low 25.9°C · 151 mm rain
- Belmopan in AugustBelize · 423 kmHigh 30.8°C · Low 23.7°C · 126 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 Mérida) is explained once on the Mérida year overview and on the Sources, method and limits page.
Kanasín lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.