Arcelia climate — normals and trends
Arcelia (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 1,018 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 (29.9 °C on average) and the coldest is December (24.2 °C). Rainfall peaks in September.
Arcelia averages 0 frost days, 249 hot days (≥ 30 °C) and 116 rainy days per year.
Arcelia has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.9 °C (on 13 May 1980) and the coldest 9.6 °C (on 8 January 1940).
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
ArceliaGuerrero
- coords
- 18.32°, -100.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
31.8°C
Average daily low
20.7°C
Annual rainfall
1,018mm
Sunshine / day
11.0h
Mean relative humidity
52%
Average peak wind
8.8km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
249 d/yr
Rainy days (≥ 1 mm)
116 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
21.4 °C
Average peak gust
28.5 km/h
Tropical nights (≥ 20 °C)
240 d/yr
Solar radiation
21.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.76 · 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
41.9 °C
13 May 1980
Coldest day
9.6 °C
8 January 1940
Wettest day
126 mm
1 July 1991
Windiest day
24.6 km/h
8 October 1976
Strongest gust
91.1 km/h
8 October 1976
Hottest feels-like
44.7 °C
25 May 2016
Coldest feels-like
6.3 °C
13 January 1956
Sunniest day
12.9 h
24 May 1940
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 | 32.1 °C | +1.6 °C | 21 mm | +12 mm |
| Feb | 34.5 °C | +2.3 °C | 5 mm | +2 mm |
| Mar | 36.0 °C | +1.7 °C | 0 mm | -2 mm |
| Apr | 36.5 °C | +0.2 °C | 0 mm | -1 mm |
| May | 37.0 °C | +0.5 °C | 17 mm | -3 mm |
| Jun | 31.4 °C | -1.0 °C | 321 mm | +139 mm |
| Jul | 32.4 °C | +2.0 °C | 113 mm | -100 mm |
| Aug | 32.6 °C | +2.5 °C | 148 mm | -68 mm |
| Sep | 32.1 °C | +2.8 °C | 233 mm | -16 mm |
| Oct | 31.5 °C | +2.0 °C | 171 mm | +64 mm |
| Nov | 32.5 °C | +2.2 °C | 0 mm | -13 mm |
| Dec | 32.6 °C | +2.3 °C | 2 mm | -1 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 Arcelia?
Arcelia has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 1,018 mm of precipitation per year.
What is the hottest day ever recorded in Arcelia?
The hottest day measured in Arcelia between 1940 and 2025 was 13 May 1980, reaching 41.9 °C.
What is the coldest day in Arcelia?
The coldest day measured in Arcelia between 1940 and 2025 was 8 January 1940, at 9.6 °C.
Does it snow in Arcelia?
Almost never: Arcelia sees virtually no snow, with about 0 frost days per year.
Has the climate of Arcelia warmed?
Yes: Arcelia warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arcelia?
The wettest day measured in Arcelia between 1940 and 2025 was 1 July 1991, with 126 mm of rain in 24 hours.
What was the windiest day in Arcelia?
The windiest day measured in Arcelia between 1940 and 2025 was 8 October 1976, with winds reaching 24.6 km/h.
What is the warmest month in Arcelia?
The warmest month in Arcelia is May (29.9 °C on average); the coldest is December (24.2 °C).
How much does it rain in Arcelia?
Arcelia receives on average 1,018 mm of precipitation per year, spread over about 116 rainy days.
Is it sunny in Arcelia?
Arcelia gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in Arcelia?
Yes: Arcelia has on average 240 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arcelia?
In Arcelia, between 1940 and 2025, the highest apparent temperature reached 44.7 °C on 25 May 2016, and the lowest was 6.3 °C on 13 January 1956.
Compare Arcelia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arcelia