San Miguel de Cozumel climate — normals and trends
San Miguel de Cozumel (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 1,231 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 August (27.8 °C on average) and the coldest is January (24.4 °C). Rainfall peaks in September.
San Miguel de Cozumel averages 0 frost days, 1 hot days (≥ 30 °C) and 179 rainy days per year.
San Miguel de Cozumel 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 31.5 °C (on 10 September 2017) and the coldest 15.9 °C (on 24 December 1989).
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
San Miguel de CozumelQuintana Roo
- coords
- 20.50°, -86.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
26.9°C
Average daily low
25.4°C
Annual rainfall
1,231mm
Sunshine / day
10.8h
Mean relative humidity
79%
Average peak wind
25.5km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
179 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.2 °C
Average feels-like low
27.1 °C
Average peak gust
35.6 km/h
Tropical nights (≥ 20 °C)
361 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.44 · 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
31.5 °C
10 September 2017
Coldest day
15.9 °C
24 December 1989
Wettest day
228 mm
21 October 2005
Windiest day
103.0 km/h
14 September 1988
Strongest gust
167.0 km/h
21 October 2005
Hottest feels-like
38.4 °C
26 August 2014
Coldest feels-like
10.7 °C
24 December 1989
Sunniest day
13.0 h
2 July 1946
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 | 25.7 °C | +0.5 °C | 48 mm | -25 mm |
| Feb | 26.5 °C | +1.2 °C | 44 mm | -2 mm |
| Mar | 26.8 °C | +1.0 °C | 16 mm | -19 mm |
| Apr | 27.0 °C | +0.4 °C | 29 mm | -2 mm |
| May | 28.3 °C | +0.9 °C | 22 mm | -64 mm |
| Jun | 28.7 °C | +0.7 °C | 164 mm | -9 mm |
| Jul | 28.9 °C | +0.6 °C | 54 mm | -53 mm |
| Aug | 29.4 °C | +0.9 °C | 94 mm | -21 mm |
| Sep | 29.2 °C | +0.9 °C | 114 mm | -76 mm |
| Oct | 28.6 °C | +1.0 °C | 156 mm | -31 mm |
| Nov | 27.2 °C | +0.6 °C | 94 mm | -10 mm |
| Dec | 26.7 °C | +1.0 °C | 110 mm | +26 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 San Miguel de Cozumel?
San Miguel de Cozumel has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 1,231 mm of precipitation per year.
What is the hottest day ever recorded in San Miguel de Cozumel?
The hottest day measured in San Miguel de Cozumel between 1940 and 2025 was 10 September 2017, reaching 31.5 °C.
What is the coldest day in San Miguel de Cozumel?
The coldest day measured in San Miguel de Cozumel between 1940 and 2025 was 24 December 1989, at 15.9 °C.
Does it snow in San Miguel de Cozumel?
Almost never: San Miguel de Cozumel sees virtually no snow, with about 0 frost days per year.
Has the climate of San Miguel de Cozumel warmed?
Yes: San Miguel de Cozumel warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in San Miguel de Cozumel?
The wettest day measured in San Miguel de Cozumel between 1940 and 2025 was 21 October 2005, with 228 mm of rain in 24 hours.
What was the windiest day in San Miguel de Cozumel?
The windiest day measured in San Miguel de Cozumel between 1940 and 2025 was 14 September 1988, with winds reaching 103.0 km/h.
What is the warmest month in San Miguel de Cozumel?
The warmest month in San Miguel de Cozumel is August (27.8 °C on average); the coldest is January (24.4 °C).
How much does it rain in San Miguel de Cozumel?
San Miguel de Cozumel receives on average 1,231 mm of precipitation per year, spread over about 179 rainy days.
Is it sunny in San Miguel de Cozumel?
San Miguel de Cozumel gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in San Miguel de Cozumel?
Yes: San Miguel de Cozumel has on average 361 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in San Miguel de Cozumel?
In San Miguel de Cozumel, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 26 August 2014, and the lowest was 10.7 °C on 24 December 1989.
Compare San Miguel de Cozumel with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around San Miguel de Cozumel