Antiguo Cuscatlán climate — normals and trends
Antiguo Cuscatlán (El Salvador) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 1,510 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 (26.4 °C on average) and the coldest is January (24.2 °C). Rainfall peaks in September.
Antiguo Cuscatlán averages 0 frost days, 228 hot days (≥ 30 °C) and 183 rainy days per year.
Antiguo Cuscatlán has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.3 °C (on 19 February 2020) and the coldest 11.0 °C (on 6 December 1945).
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
Antiguo CuscatlánLa Libertad Department
- coords
- 13.66°, -89.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.6°C
Average daily low
20.8°C
Annual rainfall
1,510mm
Sunshine / day
10.6h
Mean relative humidity
71%
Average peak wind
9.5km/h
Seasonal range
2.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
228 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.0 °C
Average feels-like low
23.2 °C
Average peak gust
31.0 km/h
Tropical nights (≥ 20 °C)
278 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.73 · 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
38.3 °C
19 February 2020
Coldest day
11.0 °C
6 December 1945
Wettest day
204 mm
4 September 1969
Windiest day
32.9 km/h
29 January 1973
Strongest gust
84.2 km/h
29 January 1973
Hottest feels-like
41.2 °C
10 May 2020
Coldest feels-like
9.2 °C
6 December 1945
Sunniest day
12.2 h
23 May 1942
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 | 32.4 °C | +1.4 °C | 5 mm | +2 mm |
| Feb | 33.4 °C | +1.5 °C | 11 mm | +8 mm |
| Mar | 33.4 °C | +1.0 °C | 10 mm | -2 mm |
| Apr | 33.2 °C | +0.9 °C | 57 mm | +6 mm |
| May | 32.2 °C | +1.4 °C | 120 mm | -73 mm |
| Jun | 30.7 °C | +1.3 °C | 398 mm | +128 mm |
| Jul | 32.5 °C | +2.1 °C | 167 mm | -28 mm |
| Aug | 32.0 °C | +1.8 °C | 208 mm | -17 mm |
| Sep | 30.9 °C | +1.9 °C | 243 mm | -53 mm |
| Oct | 30.2 °C | +1.1 °C | 233 mm | +23 mm |
| Nov | 31.6 °C | +1.8 °C | 20 mm | -25 mm |
| Dec | 31.8 °C | +1.3 °C | 42 mm | +34 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 Antiguo Cuscatlán?
Antiguo Cuscatlán has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,510 mm of precipitation per year.
What is the hottest day ever recorded in Antiguo Cuscatlán?
The hottest day measured in Antiguo Cuscatlán between 1940 and 2025 was 19 February 2020, reaching 38.3 °C.
What is the coldest day in Antiguo Cuscatlán?
The coldest day measured in Antiguo Cuscatlán between 1940 and 2025 was 6 December 1945, at 11.0 °C.
Does it snow in Antiguo Cuscatlán?
Almost never: Antiguo Cuscatlán sees virtually no snow, with about 0 frost days per year.
Has the climate of Antiguo Cuscatlán warmed?
Yes: Antiguo Cuscatlán warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Antiguo Cuscatlán?
The wettest day measured in Antiguo Cuscatlán between 1940 and 2025 was 4 September 1969, with 204 mm of rain in 24 hours.
What was the windiest day in Antiguo Cuscatlán?
The windiest day measured in Antiguo Cuscatlán between 1940 and 2025 was 29 January 1973, with winds reaching 32.9 km/h.
What is the warmest month in Antiguo Cuscatlán?
The warmest month in Antiguo Cuscatlán is April (26.4 °C on average); the coldest is January (24.2 °C).
How much does it rain in Antiguo Cuscatlán?
Antiguo Cuscatlán receives on average 1,510 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Antiguo Cuscatlán?
Antiguo Cuscatlán gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Antiguo Cuscatlán?
Yes: Antiguo Cuscatlán has on average 278 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Antiguo Cuscatlán?
In Antiguo Cuscatlán, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 10 May 2020, and the lowest was 9.2 °C on 6 December 1945.
Compare Antiguo Cuscatlán with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Antiguo Cuscatlán