Mérida climate — normals and trends
Mérida (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 757 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is May (28.8 °C on average) and the coldest is January (23.0 °C). Rainfall peaks in September.
Mérida averages 0 frost days, 283 hot days (≥ 30 °C) and 123 rainy days per year.
Mérida has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.1 °C (on 17 May 2024) and the coldest 8.2 °C (on 10 February 2000).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
MéridaYucatán
- coords
- 20.97°, -89.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
32.3°C
Average daily low
21.6°C
Annual rainfall
757mm
Sunshine / day
10.8h
Mean relative humidity
72%
Average peak wind
14.9km/h
Seasonal range
5.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
283 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
24.4 °C
Average peak gust
37.0 km/h
Tropical nights (≥ 20 °C)
280 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.15 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
43.1 °C
17 May 2024
Coldest day
8.2 °C
10 February 2000
Wettest day
135 mm
24 September 2002
Windiest day
57.5 km/h
22 September 2002
Strongest gust
127.1 km/h
15 September 1988
Hottest feels-like
46.8 °C
27 May 2024
Coldest feels-like
6.6 °C
10 February 2000
Sunniest day
13.2 h
19 June 2023
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.1 °C | +0.3 °C | 12 mm | -11 mm |
| Feb | 31.6 °C | +1.2 °C | 15 mm | -4 mm |
| Mar | 33.7 °C | +0.6 °C | 5 mm | -14 mm |
| Apr | 34.2 °C | -0.9 °C | 4 mm | -19 mm |
| May | 37.3 °C | +1.6 °C | 33 mm | -30 mm |
| Jun | 35.5 °C | +1.3 °C | 99 mm | -26 mm |
| Jul | 34.7 °C | +0.6 °C | 63 mm | -35 mm |
| Aug | 34.7 °C | +0.6 °C | 96 mm | -10 mm |
| Sep | 33.5 °C | +0.6 °C | 176 mm | +35 mm |
| Oct | 31.8 °C | +0.7 °C | 121 mm | +37 mm |
| Nov | 30.0 °C | +0.2 °C | 34 mm | +2 mm |
| Dec | 29.9 °C | +1.1 °C | 30 mm | +4 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Mérida?
Mérida has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 757 mm of precipitation per year.
What is the hottest day ever recorded in Mérida?
The hottest day measured in Mérida between 1940 and 2025 was 17 May 2024, reaching 43.1 °C.
What is the coldest day in Mérida?
The coldest day measured in Mérida between 1940 and 2025 was 10 February 2000, at 8.2 °C.
Does it snow in Mérida?
Almost never: Mérida sees virtually no snow, with about 0 frost days per year.
Has the climate of Mérida warmed?
Yes: Mérida warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mérida?
The wettest day measured in Mérida between 1940 and 2025 was 24 September 2002, with 135 mm of rain in 24 hours.
What was the windiest day in Mérida?
The windiest day measured in Mérida between 1940 and 2025 was 22 September 2002, with winds reaching 57.5 km/h.
What is the warmest month in Mérida?
The warmest month in Mérida is May (28.8 °C on average); the coldest is January (23.0 °C).
How much does it rain in Mérida?
Mérida receives on average 757 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Mérida?
Mérida gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Mérida?
Yes: Mérida has on average 280 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mérida?
In Mérida, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 27 May 2024, and the lowest was 6.6 °C on 10 February 2000.
Compare Mérida with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mérida