Santo Domingo Tehuantepec climate — normals and trends
Santo Domingo Tehuantepec (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 861 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 (28.4 °C on average) and the coldest is January (24.2 °C). Rainfall peaks in June.
Santo Domingo Tehuantepec averages 0 frost days, 278 hot days (≥ 30 °C) and 86 rainy days per year.
Santo Domingo Tehuantepec has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 10 May 2010) and the coldest 13.1 °C (on 23 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
Santo Domingo TehuantepecOaxaca
- coords
- 16.32°, -95.24°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
31.7°C
Average daily low
22.9°C
Annual rainfall
861mm
Sunshine / day
11.0h
Mean relative humidity
69%
Average peak wind
20.0km/h
Seasonal range
4.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
278 d/yr
Rainy days (≥ 1 mm)
86 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
24.9 °C
Average peak gust
51.7 km/h
Tropical nights (≥ 20 °C)
324 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.77 · 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
39.6 °C
10 May 2010
Coldest day
13.1 °C
23 December 1989
Wettest day
179 mm
24 August 2007
Windiest day
48.7 km/h
16 December 1972
Strongest gust
115.9 km/h
2 January 1979
Hottest feels-like
44.7 °C
18 May 2020
Coldest feels-like
6.4 °C
23 December 1989
Sunniest day
12.9 h
22 June 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 | 31.3 °C | +1.7 °C | 0 mm | -4 mm |
| Feb | 33.4 °C | +2.8 °C | 12 mm | +8 mm |
| Mar | 33.7 °C | +1.7 °C | 1 mm | -3 mm |
| Apr | 34.7 °C | +1.3 °C | 7 mm | -1 mm |
| May | 34.9 °C | +1.3 °C | 28 mm | -33 mm |
| Jun | 32.1 °C | +0.4 °C | 534 mm | +309 mm |
| Jul | 34.6 °C | +1.8 °C | 60 mm | -52 mm |
| Aug | 34.5 °C | +1.6 °C | 205 mm | +60 mm |
| Sep | 33.1 °C | +1.7 °C | 312 mm | +118 mm |
| Oct | 32.7 °C | +1.5 °C | 140 mm | +54 mm |
| Nov | 32.8 °C | +1.9 °C | 4 mm | -11 mm |
| Dec | 32.3 °C | +2.3 °C | 0 mm | -4 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 Santo Domingo Tehuantepec?
Santo Domingo Tehuantepec has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 861 mm of precipitation per year.
What is the hottest day ever recorded in Santo Domingo Tehuantepec?
The hottest day measured in Santo Domingo Tehuantepec between 1940 and 2025 was 10 May 2010, reaching 39.6 °C.
What is the coldest day in Santo Domingo Tehuantepec?
The coldest day measured in Santo Domingo Tehuantepec between 1940 and 2025 was 23 December 1989, at 13.1 °C.
Does it snow in Santo Domingo Tehuantepec?
Almost never: Santo Domingo Tehuantepec sees virtually no snow, with about 0 frost days per year.
Has the climate of Santo Domingo Tehuantepec warmed?
Yes: Santo Domingo Tehuantepec warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Santo Domingo Tehuantepec?
The wettest day measured in Santo Domingo Tehuantepec between 1940 and 2025 was 24 August 2007, with 179 mm of rain in 24 hours.
What was the windiest day in Santo Domingo Tehuantepec?
The windiest day measured in Santo Domingo Tehuantepec between 1940 and 2025 was 16 December 1972, with winds reaching 48.7 km/h.
What is the warmest month in Santo Domingo Tehuantepec?
The warmest month in Santo Domingo Tehuantepec is May (28.4 °C on average); the coldest is January (24.2 °C).
How much does it rain in Santo Domingo Tehuantepec?
Santo Domingo Tehuantepec receives on average 861 mm of precipitation per year, spread over about 86 rainy days.
Is it sunny in Santo Domingo Tehuantepec?
Santo Domingo Tehuantepec gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in Santo Domingo Tehuantepec?
Yes: Santo Domingo Tehuantepec has on average 324 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Santo Domingo Tehuantepec?
In Santo Domingo Tehuantepec, between 1940 and 2025, the highest apparent temperature reached 44.7 °C on 18 May 2020, and the lowest was 6.4 °C on 23 December 1989.
Compare Santo Domingo Tehuantepec with another city
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Nearby cities
The climate around Santo Domingo Tehuantepec