Coatzacoalcos climate — normals and trends
Coatzacoalcos (Mexico) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.6 °C and it receives 1,925 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 (27.8 °C on average) and the coldest is January (22.5 °C). Rainfall peaks in September.
Coatzacoalcos averages 0 frost days, 68 hot days (≥ 30 °C) and 203 rainy days per year.
Coatzacoalcos has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.3 °C (on 17 May 2024) and the coldest 15.5 °C (on 14 February 1960).
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
CoatzacoalcosVeracruz
- coords
- 18.15°, -94.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.6°C
Average daily high
27.6°C
Average daily low
23.9°C
Annual rainfall
1,925mm
Sunshine / day
10.4h
Mean relative humidity
82%
Average peak wind
19.2km/h
Seasonal range
5.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
68 d/yr
Rainy days (≥ 1 mm)
203 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.9 °C
Average feels-like low
26.8 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
349 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.68 · 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
37.3 °C
17 May 2024
Coldest day
15.5 °C
14 February 1960
Wettest day
282 mm
5 June 1946
Windiest day
66.0 km/h
11 November 1942
Strongest gust
108.0 km/h
11 November 1942
Hottest feels-like
45.2 °C
27 May 2024
Coldest feels-like
11.0 °C
13 February 1960
Sunniest day
12.9 h
6 July 2025
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 | 25.1 °C | +0.9 °C | 152 mm | +56 mm |
| Feb | 26.6 °C | +1.5 °C | 124 mm | +75 mm |
| Mar | 28.9 °C | +1.5 °C | 6 mm | -27 mm |
| Apr | 29.5 °C | 0.0 °C | 8 mm | -22 mm |
| May | 32.6 °C | +2.1 °C | 42 mm | -24 mm |
| Jun | 30.4 °C | +0.9 °C | 317 mm | +70 mm |
| Jul | 29.8 °C | +1.1 °C | 190 mm | -99 mm |
| Aug | 30.2 °C | +1.3 °C | 248 mm | -34 mm |
| Sep | 30.2 °C | +1.6 °C | 276 mm | -48 mm |
| Oct | 28.8 °C | +1.3 °C | 251 mm | +6 mm |
| Nov | 27.4 °C | +1.3 °C | 149 mm | -1 mm |
| Dec | 26.4 °C | +1.5 °C | 177 mm | +62 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 Coatzacoalcos?
Coatzacoalcos has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.6 °C and it receives 1,925 mm of precipitation per year.
What is the hottest day ever recorded in Coatzacoalcos?
The hottest day measured in Coatzacoalcos between 1940 and 2025 was 17 May 2024, reaching 37.3 °C.
What is the coldest day in Coatzacoalcos?
The coldest day measured in Coatzacoalcos between 1940 and 2025 was 14 February 1960, at 15.5 °C.
Does it snow in Coatzacoalcos?
Almost never: Coatzacoalcos sees virtually no snow, with about 0 frost days per year.
Has the climate of Coatzacoalcos warmed?
Yes: Coatzacoalcos warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Coatzacoalcos?
The wettest day measured in Coatzacoalcos between 1940 and 2025 was 5 June 1946, with 282 mm of rain in 24 hours.
What was the windiest day in Coatzacoalcos?
The windiest day measured in Coatzacoalcos between 1940 and 2025 was 11 November 1942, with winds reaching 66.0 km/h.
What is the warmest month in Coatzacoalcos?
The warmest month in Coatzacoalcos is May (27.8 °C on average); the coldest is January (22.5 °C).
How much does it rain in Coatzacoalcos?
Coatzacoalcos receives on average 1,925 mm of precipitation per year, spread over about 203 rainy days.
Is it sunny in Coatzacoalcos?
Coatzacoalcos gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Coatzacoalcos?
Yes: Coatzacoalcos has on average 349 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Coatzacoalcos?
In Coatzacoalcos, between 1940 and 2025, the highest apparent temperature reached 45.2 °C on 27 May 2024, and the lowest was 11.0 °C on 13 February 1960.
Compare Coatzacoalcos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Coatzacoalcos