Ocotlán de Morelos climate — normals and trends
Ocotlán de Morelos (Mexico) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 18.3 °C and it receives 676 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 (20.5 °C on average) and the coldest is January (16.0 °C). Rainfall peaks in June.
Ocotlán de Morelos averages 0 frost days, 25 hot days (≥ 30 °C) and 94 rainy days per year.
Ocotlán de Morelos has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.4 °C (on 9 May 2024) and the coldest -1.1 °C (on 13 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
Ocotlán de MorelosOaxaca
- coords
- 16.79°, -96.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.3°C
Average daily high
25.6°C
Average daily low
12.2°C
Annual rainfall
676mm
Sunshine / day
10.7h
Mean relative humidity
66%
Average peak wind
12.3km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
25 d/yr
Rainy days (≥ 1 mm)
94 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.7 °C
Average feels-like low
11.6 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.75 · 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
36.4 °C
9 May 2024
Coldest day
-1.1 °C
13 January 1956
Wettest day
163 mm
17 June 1974
Windiest day
24.9 km/h
2 January 2008
Strongest gust
67.0 km/h
10 March 2016
Hottest feels-like
37.3 °C
22 May 2024
Coldest feels-like
-4.9 °C
13 January 1956
Sunniest day
13.0 h
23 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 | 26.2 °C | +1.9 °C | 1 mm | -4 mm |
| Feb | 28.1 °C | +2.3 °C | 2 mm | -4 mm |
| Mar | 30.7 °C | +2.9 °C | 18 mm | +7 mm |
| Apr | 31.0 °C | +2.3 °C | 2 mm | -27 mm |
| May | 31.1 °C | +3.1 °C | 76 mm | +4 mm |
| Jun | 25.1 °C | -0.1 °C | 245 mm | +100 mm |
| Jul | 26.3 °C | +1.8 °C | 59 mm | -34 mm |
| Aug | 26.5 °C | +1.4 °C | 116 mm | +13 mm |
| Sep | 26.4 °C | +2.1 °C | 218 mm | +78 mm |
| Oct | 25.4 °C | +1.1 °C | 124 mm | +60 mm |
| Nov | 26.3 °C | +1.6 °C | 3 mm | -7 mm |
| Dec | 25.6 °C | +1.3 °C | 3 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 Ocotlán de Morelos?
Ocotlán de Morelos has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 18.3 °C and it receives 676 mm of precipitation per year.
What is the hottest day ever recorded in Ocotlán de Morelos?
The hottest day measured in Ocotlán de Morelos between 1940 and 2025 was 9 May 2024, reaching 36.4 °C.
What is the coldest day in Ocotlán de Morelos?
The coldest day measured in Ocotlán de Morelos between 1940 and 2025 was 13 January 1956, at -1.1 °C.
Does it snow in Ocotlán de Morelos?
Almost never: Ocotlán de Morelos sees virtually no snow, with about 0 frost days per year.
Has the climate of Ocotlán de Morelos warmed?
Yes: Ocotlán de Morelos warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ocotlán de Morelos?
The wettest day measured in Ocotlán de Morelos between 1940 and 2025 was 17 June 1974, with 163 mm of rain in 24 hours.
What was the windiest day in Ocotlán de Morelos?
The windiest day measured in Ocotlán de Morelos between 1940 and 2025 was 2 January 2008, with winds reaching 24.9 km/h.
What is the warmest month in Ocotlán de Morelos?
The warmest month in Ocotlán de Morelos is May (20.5 °C on average); the coldest is January (16.0 °C).
How much does it rain in Ocotlán de Morelos?
Ocotlán de Morelos receives on average 676 mm of precipitation per year, spread over about 94 rainy days.
Is it sunny in Ocotlán de Morelos?
Ocotlán de Morelos gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Ocotlán de Morelos?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ocotlán de Morelos.
What was the most extreme apparent temperature in Ocotlán de Morelos?
In Ocotlán de Morelos, between 1940 and 2025, the highest apparent temperature reached 37.3 °C on 22 May 2024, and the lowest was -4.9 °C on 13 January 1956.
Compare Ocotlán de Morelos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ocotlán de Morelos