Arriaga climate — normals and trends
Arriaga (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,278 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 (26.7 °C on average) and the coldest is January (23.4 °C). Rainfall peaks in September.
Arriaga averages 0 frost days, 116 hot days (≥ 30 °C) and 144 rainy days per year.
Arriaga has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.1 °C (on 16 May 1998) and the coldest 13.7 °C (on 26 December 1963).
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
ArriagaChiapas
- coords
- 16.24°, -93.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
29.0°C
Average daily low
22.6°C
Annual rainfall
1,278mm
Sunshine / day
10.8h
Mean relative humidity
75%
Average peak wind
13.9km/h
Seasonal range
3.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
116 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
25.0 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
326 d/yr
Solar radiation
20.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.81 · 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
35.1 °C
16 May 1998
Coldest day
13.7 °C
26 December 1963
Wettest day
204 mm
31 May 1986
Windiest day
45.8 km/h
2 January 2008
Strongest gust
104.8 km/h
2 January 2008
Hottest feels-like
42.2 °C
11 July 2023
Coldest feels-like
9.9 °C
24 December 1989
Sunniest day
12.8 h
9 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.1 °C | +1.7 °C | 1 mm | -3 mm |
| Feb | 30.5 °C | +2.4 °C | 9 mm | +5 mm |
| Mar | 30.5 °C | +1.4 °C | 8 mm | -2 mm |
| Apr | 30.7 °C | +0.6 °C | 34 mm | +13 mm |
| May | 31.0 °C | +0.8 °C | 72 mm | -37 mm |
| Jun | 30.3 °C | +1.1 °C | 253 mm | -16 mm |
| Jul | 31.9 °C | +2.0 °C | 117 mm | -78 mm |
| Aug | 31.2 °C | +1.5 °C | 222 mm | -4 mm |
| Sep | 30.4 °C | +1.5 °C | 314 mm | +20 mm |
| Oct | 30.4 °C | +1.6 °C | 148 mm | +25 mm |
| Nov | 29.9 °C | +1.6 °C | 4 mm | -19 mm |
| Dec | 29.9 °C | +2.1 °C | 5 mm | +2 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 Arriaga?
Arriaga has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,278 mm of precipitation per year.
What is the hottest day ever recorded in Arriaga?
The hottest day measured in Arriaga between 1940 and 2025 was 16 May 1998, reaching 35.1 °C.
What is the coldest day in Arriaga?
The coldest day measured in Arriaga between 1940 and 2025 was 26 December 1963, at 13.7 °C.
Does it snow in Arriaga?
Almost never: Arriaga sees virtually no snow, with about 0 frost days per year.
Has the climate of Arriaga warmed?
Yes: Arriaga warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arriaga?
The wettest day measured in Arriaga between 1940 and 2025 was 31 May 1986, with 204 mm of rain in 24 hours.
What was the windiest day in Arriaga?
The windiest day measured in Arriaga between 1940 and 2025 was 2 January 2008, with winds reaching 45.8 km/h.
What is the warmest month in Arriaga?
The warmest month in Arriaga is May (26.7 °C on average); the coldest is January (23.4 °C).
How much does it rain in Arriaga?
Arriaga receives on average 1,278 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Arriaga?
Arriaga gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Arriaga?
Yes: Arriaga has on average 326 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arriaga?
In Arriaga, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 11 July 2023, and the lowest was 9.9 °C on 24 December 1989.
Compare Arriaga with another city
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Nearby cities
The climate around Arriaga