San Rafael climate — normals and trends
San Rafael (Mexico) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 1,583 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 (13.4 °C on average) and the coldest is January (9.1 °C). Rainfall peaks in June.
San Rafael averages 9 frost days, 0 hot days (≥ 30 °C) and 188 rainy days per year.
San Rafael has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 14 to 4 per year over the period.
The hottest day of the period reached 28.4 °C (on 8 May 1998) and the coldest -6.9 °C (on 12 January 1956).
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
San RafaelMéxico
- coords
- 19.21°, -98.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.7°C
Average daily high
18.3°C
Average daily low
6.1°C
Annual rainfall
1,583mm
Sunshine / day
10.6h
Mean relative humidity
69%
Average peak wind
8.9km/h
Seasonal range
4.3°C
Frost days (< 0 °C)
9 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
188 d/yr
Annual snowfall
0.6 cm
Average feels-like high
17.9 °C
Average feels-like low
4.0 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.89 · 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
28.4 °C
8 May 1998
Coldest day
-6.9 °C
12 January 1956
Wettest day
171 mm
23 September 1940
Windiest day
26.5 km/h
24 March 1957
Strongest gust
108.0 km/h
10 March 2016
Hottest feels-like
28.4 °C
1 May 1983
Coldest feels-like
-11.8 °C
12 January 1956
Snowiest day
22.4 cm
11 January 1967
Sunniest day
13.0 h
18 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 | 18.2 °C | +1.9 °C | 32 mm | +3 mm |
| Feb | 19.0 °C | +1.1 °C | 106 mm | +73 mm |
| Mar | 21.7 °C | +2.0 °C | 46 mm | -6 mm |
| Apr | 22.6 °C | +2.2 °C | 16 mm | -91 mm |
| May | 22.1 °C | +1.8 °C | 202 mm | +31 mm |
| Jun | 18.8 °C | -0.4 °C | 489 mm | +228 mm |
| Jul | 19.8 °C | +1.5 °C | 202 mm | -54 mm |
| Aug | 20.0 °C | +1.6 °C | 263 mm | +12 mm |
| Sep | 20.4 °C | +2.4 °C | 292 mm | +56 mm |
| Oct | 19.7 °C | +1.8 °C | 171 mm | +55 mm |
| Nov | 19.8 °C | +2.6 °C | 10 mm | -36 mm |
| Dec | 17.1 °C | +0.7 °C | 72 mm | +48 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 San Rafael?
San Rafael has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 1,583 mm of precipitation per year.
What is the hottest day ever recorded in San Rafael?
The hottest day measured in San Rafael between 1940 and 2025 was 8 May 1998, reaching 28.4 °C.
What is the coldest day in San Rafael?
The coldest day measured in San Rafael between 1940 and 2025 was 12 January 1956, at -6.9 °C.
Does it snow in San Rafael?
Almost never: San Rafael sees virtually no snow, with about 9 frost days per year.
Has the climate of San Rafael warmed?
Yes: San Rafael warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in San Rafael?
The wettest day measured in San Rafael between 1940 and 2025 was 23 September 1940, with 171 mm of rain in 24 hours.
What was the windiest day in San Rafael?
The windiest day measured in San Rafael between 1940 and 2025 was 24 March 1957, with winds reaching 26.5 km/h.
What is the warmest month in San Rafael?
The warmest month in San Rafael is May (13.4 °C on average); the coldest is January (9.1 °C).
How much does it rain in San Rafael?
San Rafael receives on average 1,583 mm of precipitation per year, spread over about 188 rainy days.
Is it sunny in San Rafael?
San Rafael gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in San Rafael?
The heaviest 24-hour snowfall measured in San Rafael between 1940 and 2025 was 11 January 1967, with 22.4 cm.
Are there tropical nights in San Rafael?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in San Rafael.
What was the most extreme apparent temperature in San Rafael?
In San Rafael, between 1940 and 2025, the highest apparent temperature reached 28.4 °C on 1 May 1983, and the lowest was -11.8 °C on 12 January 1956.
Compare San Rafael with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around San Rafael