Metapán climate — normals and trends
Metapán (El Salvador) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 684 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 April (26.1 °C on average) and the coldest is January (22.8 °C). Rainfall peaks in September.
Metapán averages 0 frost days, 203 hot days (≥ 30 °C) and 114 rainy days per year.
Metapán has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.0 °C (on 4 May 2024) and the coldest 9.4 °C (on 15 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
MetapánSanta Ana Department
- coords
- 14.33°, -89.45°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.4°C
Average daily high
30.3°C
Average daily low
20.0°C
Annual rainfall
684mm
Sunshine / day
10.5h
Mean relative humidity
68%
Average peak wind
12.3km/h
Seasonal range
3.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
203 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.2 °C
Average feels-like low
21.8 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
217 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.72 · 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
4 May 2024
Coldest day
9.4 °C
15 January 1956
Wettest day
190 mm
4 September 1969
Windiest day
33.1 km/h
3 January 2008
Strongest gust
85.3 km/h
3 January 2008
Hottest feels-like
42.8 °C
25 April 2016
Coldest feels-like
7.8 °C
15 January 1956
Sunniest day
12.2 h
15 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.1 °C | +1.0 °C | 1 mm | -0 mm |
| Feb | 32.1 °C | +1.7 °C | 1 mm | +0 mm |
| Mar | 33.9 °C | +1.8 °C | 1 mm | -2 mm |
| Apr | 33.8 °C | +0.9 °C | 5 mm | -13 mm |
| May | 34.5 °C | +2.6 °C | 33 mm | -44 mm |
| Jun | 31.5 °C | +1.6 °C | 140 mm | +18 mm |
| Jul | 32.8 °C | +2.5 °C | 60 mm | -23 mm |
| Aug | 34.2 °C | +3.5 °C | 32 mm | -60 mm |
| Sep | 32.7 °C | +3.1 °C | 88 mm | -66 mm |
| Oct | 30.6 °C | +1.7 °C | 107 mm | -4 mm |
| Nov | 30.7 °C | +2.0 °C | 9 mm | -12 mm |
| Dec | 30.7 °C | +1.9 °C | 8 mm | +6 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 Metapán?
Metapán has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 684 mm of precipitation per year.
What is the hottest day ever recorded in Metapán?
The hottest day measured in Metapán between 1940 and 2025 was 4 May 2024, reaching 39.0 °C.
What is the coldest day in Metapán?
The coldest day measured in Metapán between 1940 and 2025 was 15 January 1956, at 9.4 °C.
Does it snow in Metapán?
Almost never: Metapán sees virtually no snow, with about 0 frost days per year.
Has the climate of Metapán warmed?
Yes: Metapán warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Metapán?
The wettest day measured in Metapán between 1940 and 2025 was 4 September 1969, with 190 mm of rain in 24 hours.
What was the windiest day in Metapán?
The windiest day measured in Metapán between 1940 and 2025 was 3 January 2008, with winds reaching 33.1 km/h.
What is the warmest month in Metapán?
The warmest month in Metapán is April (26.1 °C on average); the coldest is January (22.8 °C).
How much does it rain in Metapán?
Metapán receives on average 684 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Metapán?
Metapán gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Metapán?
Yes: Metapán has on average 217 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Metapán?
In Metapán, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 25 April 2016, and the lowest was 7.8 °C on 15 January 1956.
Compare Metapán with another city
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Nearby cities
The climate around Metapán