Climate averages 1991–2020
Mérida weather
in December.
A hot, fairly dry month: the 11th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Mérida: daytime highs average 28.8°C and nights cool to about 19.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 22 mm of rain on roughly 4 days, which makes December a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 53 min on an average December day.
The nearest other city in this atlas is Kanasín (8 km away). In December its highs average 29.2°C, about as warm as Mérida, with 22 mm of rain.
Among the 153 cities listed in Mexico, Mérida ranks joint 11th of 153 for the warmest December highs and joint 105th of 153 for the driest December (rainfall, lowest first). The mean December high of those 153 cities is 22.7°C; Mérida is 6.2°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 28.6°C, and monthly rainfall falls from 22 mm to 21 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Kanasín in DecemberMexico · 8 kmHigh 29.2°C · Low 19.6°C · 22 mm rain
- Campeche in DecemberMexico · 156 kmHigh 28.8°C · Low 21.0°C · 22 mm rain
- Playa del Carmen in DecemberMexico · 267 kmHigh 26.2°C · Low 22.5°C · 54 mm rain
- Cozumel in DecemberMexico · 284 kmHigh 25.9°C · Low 24.1°C · 66 mm rain
- Cancún in DecemberMexico · 289 kmHigh 25.9°C · Low 23.1°C · 61 mm rain
- Chetumal in DecemberMexico · 305 kmHigh 27.1°C · Low 21.2°C · 55 mm rain
- Ciudad del Carmen in DecemberMexico · 346 kmHigh 26.0°C · Low 22.5°C · 49 mm rain
- Belmopan in DecemberBelize · 423 kmHigh 26.5°C · Low 20.0°C · 76 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.