Mazatlán climate — normals and trends
Mazatlán (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 654 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 July (28.1 °C on average) and the coldest is February (20.8 °C). Rainfall peaks in September.
Mazatlán averages 0 frost days, 31 hot days (≥ 30 °C) and 70 rainy days per year.
Mazatlán has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.8 °C (on 4 July 2006) and the coldest 11.4 °C (on 4 February 2011).
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
MazatlánSinaloa
- coords
- 23.22°, -106.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
26.3°C
Average daily low
22.9°C
Annual rainfall
654mm
Sunshine / day
10.8h
Mean relative humidity
81%
Average peak wind
17.3km/h
Seasonal range
7.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
31 d/yr
Rainy days (≥ 1 mm)
70 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.3 °C
Average feels-like low
26.1 °C
Average peak gust
26.4 km/h
Tropical nights (≥ 20 °C)
276 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.43 · 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
32.8 °C
4 July 2006
Coldest day
11.4 °C
4 February 2011
Wettest day
419 mm
29 August 2021
Windiest day
75.7 km/h
31 July 1948
Strongest gust
122.0 km/h
21 October 2009
Hottest feels-like
41.4 °C
24 July 1997
Coldest feels-like
7.0 °C
4 February 2011
Sunniest day
13.3 h
11 June 1945
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 | 22.5 °C | -0.5 °C | 12 mm | -8 mm |
| Feb | 22.7 °C | -0.2 °C | 0 mm | -10 mm |
| Mar | 22.5 °C | -0.6 °C | 0 mm | -5 mm |
| Apr | 24.1 °C | -0.3 °C | 0 mm | -1 mm |
| May | 27.2 °C | +1.0 °C | 3 mm | +2 mm |
| Jun | 28.9 °C | +0.8 °C | 39 mm | +22 mm |
| Jul | 30.4 °C | +1.0 °C | 194 mm | +70 mm |
| Aug | 30.7 °C | +1.1 °C | 169 mm | -13 mm |
| Sep | 30.4 °C | +1.1 °C | 319 mm | +135 mm |
| Oct | 29.8 °C | +1.1 °C | 69 mm | +3 mm |
| Nov | 28.2 °C | +1.6 °C | 0 mm | -21 mm |
| Dec | 25.8 °C | +1.5 °C | 3 mm | -19 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 Mazatlán?
Mazatlán has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 654 mm of precipitation per year.
What is the hottest day ever recorded in Mazatlán?
The hottest day measured in Mazatlán between 1940 and 2025 was 4 July 2006, reaching 32.8 °C.
What is the coldest day in Mazatlán?
The coldest day measured in Mazatlán between 1940 and 2025 was 4 February 2011, at 11.4 °C.
Does it snow in Mazatlán?
Almost never: Mazatlán sees virtually no snow, with about 0 frost days per year.
Has the climate of Mazatlán warmed?
Yes: Mazatlán warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mazatlán?
The wettest day measured in Mazatlán between 1940 and 2025 was 29 August 2021, with 419 mm of rain in 24 hours.
What was the windiest day in Mazatlán?
The windiest day measured in Mazatlán between 1940 and 2025 was 31 July 1948, with winds reaching 75.7 km/h.
What is the warmest month in Mazatlán?
The warmest month in Mazatlán is July (28.1 °C on average); the coldest is February (20.8 °C).
How much does it rain in Mazatlán?
Mazatlán receives on average 654 mm of precipitation per year, spread over about 70 rainy days.
Is it sunny in Mazatlán?
Mazatlán gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Mazatlán?
Yes: Mazatlán has on average 276 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mazatlán?
In Mazatlán, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 24 July 1997, and the lowest was 7.0 °C on 4 February 2011.
Compare Mazatlán with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mazatlán