Salamanca climate — normals and trends
Salamanca (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 19.2 °C and it receives 645 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 (23.2 °C on average) and the coldest is January (15.3 °C). Rainfall peaks in July.
Salamanca averages 0 frost days, 72 hot days (≥ 30 °C) and 88 rainy days per year.
Salamanca has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.0 °C (on 24 May 2024) and the coldest -2.8 °C (on 25 February 1976).
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
SalamancaGuanajuato
- coords
- 20.57°, -101.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.2°C
Average daily high
27.0°C
Average daily low
12.5°C
Annual rainfall
645mm
Sunshine / day
11.1h
Mean relative humidity
56%
Average peak wind
13.0km/h
Seasonal range
7.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
72 d/yr
Rainy days (≥ 1 mm)
88 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.6 °C
Average feels-like low
11.6 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.79 · 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
39.0 °C
24 May 2024
Coldest day
-2.8 °C
25 February 1976
Wettest day
65 mm
3 February 2010
Windiest day
33.0 km/h
4 March 1983
Strongest gust
80.6 km/h
9 March 2016
Hottest feels-like
39.2 °C
10 May 2024
Coldest feels-like
-6.7 °C
25 February 1976
Snowiest day
2.6 cm
2 January 1947
Sunniest day
13.0 h
2 July 1942
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 | 25.7 °C | +2.0 °C | 7 mm | -6 mm |
| Feb | 28.5 °C | +2.8 °C | 3 mm | -6 mm |
| Mar | 31.1 °C | +2.6 °C | 1 mm | -7 mm |
| Apr | 32.5 °C | +1.9 °C | 0 mm | -11 mm |
| May | 33.2 °C | +1.8 °C | 47 mm | +12 mm |
| Jun | 27.7 °C | -1.4 °C | 287 mm | +162 mm |
| Jul | 26.9 °C | +0.1 °C | 179 mm | +30 mm |
| Aug | 27.9 °C | +1.1 °C | 176 mm | +38 mm |
| Sep | 27.7 °C | +1.5 °C | 133 mm | +28 mm |
| Oct | 28.9 °C | +2.7 °C | 30 mm | -6 mm |
| Nov | 28.6 °C | +3.2 °C | 0 mm | -10 mm |
| Dec | 26.4 °C | +2.5 °C | 6 mm | -0 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 Salamanca?
Salamanca has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 645 mm of precipitation per year.
What is the hottest day ever recorded in Salamanca?
The hottest day measured in Salamanca between 1940 and 2025 was 24 May 2024, reaching 39.0 °C.
What is the coldest day in Salamanca?
The coldest day measured in Salamanca between 1940 and 2025 was 25 February 1976, at -2.8 °C.
Does it snow in Salamanca?
Almost never: Salamanca sees virtually no snow, with about 0 frost days per year.
Has the climate of Salamanca warmed?
Yes: Salamanca warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Salamanca?
The wettest day measured in Salamanca between 1940 and 2025 was 3 February 2010, with 65 mm of rain in 24 hours.
What was the windiest day in Salamanca?
The windiest day measured in Salamanca between 1940 and 2025 was 4 March 1983, with winds reaching 33.0 km/h.
What is the warmest month in Salamanca?
The warmest month in Salamanca is May (23.2 °C on average); the coldest is January (15.3 °C).
How much does it rain in Salamanca?
Salamanca receives on average 645 mm of precipitation per year, spread over about 88 rainy days.
Is it sunny in Salamanca?
Salamanca gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
What is the biggest single-day snowfall in Salamanca?
The heaviest 24-hour snowfall measured in Salamanca between 1940 and 2025 was 2 January 1947, with 2.6 cm.
Are there tropical nights in Salamanca?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Salamanca.
What was the most extreme apparent temperature in Salamanca?
In Salamanca, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 10 May 2024, and the lowest was -6.7 °C on 25 February 1976.
Compare Salamanca with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Salamanca