Peto climate — normals and trends
Peto (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 767 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 (28.7 °C on average) and the coldest is January (23.1 °C). Rainfall peaks in September.
Peto averages 0 frost days, 286 hot days (≥ 30 °C) and 130 rainy days per year.
Peto has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.4 °C (on 28 March 1984) and the coldest 6.7 °C (on 29 December 1980).
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
PetoYucatán
- coords
- 20.13°, -88.92°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
32.4°C
Average daily low
21.4°C
Annual rainfall
767mm
Sunshine / day
10.5h
Mean relative humidity
73%
Average peak wind
14.0km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
286 d/yr
Rainy days (≥ 1 mm)
130 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.6 °C
Average feels-like low
24.4 °C
Average peak gust
35.6 km/h
Tropical nights (≥ 20 °C)
274 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
44.4 °C
28 March 1984
Coldest day
6.7 °C
29 December 1980
Wettest day
246 mm
23 September 2002
Windiest day
53.2 km/h
22 September 2002
Strongest gust
128.9 km/h
22 September 2002
Hottest feels-like
47.2 °C
7 June 2024
Coldest feels-like
4.7 °C
2 March 1986
Sunniest day
13.1 h
12 June 1945
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 | 29.6 °C | +0.6 °C | 16 mm | -8 mm |
| Feb | 31.6 °C | +0.8 °C | 21 mm | +2 mm |
| Mar | 34.3 °C | +1.0 °C | 7 mm | -14 mm |
| Apr | 34.6 °C | -0.4 °C | 5 mm | -23 mm |
| May | 36.9 °C | +1.4 °C | 46 mm | -15 mm |
| Jun | 34.4 °C | +0.7 °C | 126 mm | +4 mm |
| Jul | 35.1 °C | +1.2 °C | 79 mm | -14 mm |
| Aug | 34.4 °C | +0.3 °C | 120 mm | +13 mm |
| Sep | 34.0 °C | +1.2 °C | 145 mm | +4 mm |
| Oct | 32.1 °C | +0.8 °C | 120 mm | +34 mm |
| Nov | 31.0 °C | +0.9 °C | 23 mm | -14 mm |
| Dec | 30.6 °C | +1.5 °C | 50 mm | +23 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 Peto?
Peto has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 767 mm of precipitation per year.
What is the hottest day ever recorded in Peto?
The hottest day measured in Peto between 1940 and 2025 was 28 March 1984, reaching 44.4 °C.
What is the coldest day in Peto?
The coldest day measured in Peto between 1940 and 2025 was 29 December 1980, at 6.7 °C.
Does it snow in Peto?
Almost never: Peto sees virtually no snow, with about 0 frost days per year.
Has the climate of Peto warmed?
Yes: Peto warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Peto?
The wettest day measured in Peto between 1940 and 2025 was 23 September 2002, with 246 mm of rain in 24 hours.
What was the windiest day in Peto?
The windiest day measured in Peto between 1940 and 2025 was 22 September 2002, with winds reaching 53.2 km/h.
What is the warmest month in Peto?
The warmest month in Peto is May (28.7 °C on average); the coldest is January (23.1 °C).
How much does it rain in Peto?
Peto receives on average 767 mm of precipitation per year, spread over about 130 rainy days.
Is it sunny in Peto?
Peto gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Peto?
Yes: Peto has on average 274 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Peto?
In Peto, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 7 June 2024, and the lowest was 4.7 °C on 2 March 1986.
Compare Peto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Peto