Oaxaca City climate — normals and trends
Oaxaca City (Mexico) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 17.5 °C and it receives 698 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 (19.4 °C on average) and the coldest is January (15.4 °C). Rainfall peaks in June.
Oaxaca City averages 0 frost days, 14 hot days (≥ 30 °C) and 89 rainy days per year.
Oaxaca City 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 35.3 °C (on 15 April 1998) and the coldest -2.0 °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
Oaxaca CityOaxaca
- coords
- 17.06°, -96.73°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.5°C
Average daily high
24.7°C
Average daily low
11.8°C
Annual rainfall
698mm
Sunshine / day
10.6h
Mean relative humidity
66%
Average peak wind
11.8km/h
Seasonal range
4.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
14 d/yr
Rainy days (≥ 1 mm)
89 d/yr
Annual snowfall
0.0 cm
Average feels-like high
24.5 °C
Average feels-like low
11.1 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.74 · 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
35.3 °C
15 April 1998
Coldest day
-2.0 °C
13 January 1956
Wettest day
120 mm
17 June 1974
Windiest day
27.2 km/h
9 March 2016
Strongest gust
74.9 km/h
9 August 2012
Hottest feels-like
35.9 °C
20 May 2025
Coldest feels-like
-5.9 °C
21 December 1954
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 | 25.1 °C | +1.7 °C | 4 mm | -1 mm |
| Feb | 27.1 °C | +2.1 °C | 2 mm | -6 mm |
| Mar | 29.7 °C | +2.8 °C | 10 mm | -5 mm |
| Apr | 30.0 °C | +2.3 °C | 3 mm | -32 mm |
| May | 29.9 °C | +3.1 °C | 91 mm | +22 mm |
| Jun | 23.9 °C | -0.3 °C | 253 mm | +98 mm |
| Jul | 25.6 °C | +1.9 °C | 58 mm | -39 mm |
| Aug | 25.6 °C | +1.4 °C | 140 mm | +33 mm |
| Sep | 25.5 °C | +2.1 °C | 149 mm | +10 mm |
| Oct | 24.7 °C | +1.2 °C | 93 mm | +36 mm |
| Nov | 25.7 °C | +1.9 °C | 2 mm | -8 mm |
| Dec | 24.9 °C | +1.6 °C | 3 mm | -1 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 Oaxaca City?
Oaxaca City has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 17.5 °C and it receives 698 mm of precipitation per year.
What is the hottest day ever recorded in Oaxaca City?
The hottest day measured in Oaxaca City between 1940 and 2025 was 15 April 1998, reaching 35.3 °C.
What is the coldest day in Oaxaca City?
The coldest day measured in Oaxaca City between 1940 and 2025 was 13 January 1956, at -2.0 °C.
Does it snow in Oaxaca City?
Almost never: Oaxaca City sees virtually no snow, with about 0 frost days per year.
Has the climate of Oaxaca City warmed?
Yes: Oaxaca City warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Oaxaca City?
The wettest day measured in Oaxaca City between 1940 and 2025 was 17 June 1974, with 120 mm of rain in 24 hours.
What was the windiest day in Oaxaca City?
The windiest day measured in Oaxaca City between 1940 and 2025 was 9 March 2016, with winds reaching 27.2 km/h.
What is the warmest month in Oaxaca City?
The warmest month in Oaxaca City is May (19.4 °C on average); the coldest is January (15.4 °C).
How much does it rain in Oaxaca City?
Oaxaca City receives on average 698 mm of precipitation per year, spread over about 89 rainy days.
Is it sunny in Oaxaca City?
Oaxaca City gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Oaxaca City?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Oaxaca City.
What was the most extreme apparent temperature in Oaxaca City?
In Oaxaca City, between 1940 and 2025, the highest apparent temperature reached 35.9 °C on 20 May 2025, and the lowest was -5.9 °C on 21 December 1954.
Compare Oaxaca City with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Oaxaca City