Sonsón climate — normals and trends
Sonsón (Colombia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 18.2 °C and it receives 3,352 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 August (18.9 °C on average) and the coldest is January (17.7 °C). Rainfall peaks in April.
Sonsón averages 0 frost days, 1 hot days (≥ 30 °C) and 288 rainy days per year.
Sonsón has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.0 °C (on 15 September 2024) and the coldest 8.3 °C (on 4 January 1968).
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
SonsónAntioquia
- coords
- 5.71°, -75.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.2°C
Average daily high
23.7°C
Average daily low
13.9°C
Annual rainfall
3,352mm
Sunshine / day
9.6h
Mean relative humidity
82%
Average peak wind
5.9km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
288 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.0 °C
Average feels-like low
14.6 °C
Average peak gust
27.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.71 · 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
32.0 °C
15 September 2024
Coldest day
8.3 °C
4 January 1968
Wettest day
108 mm
22 March 1989
Windiest day
14.8 km/h
30 July 1972
Strongest gust
60.5 km/h
2 September 1954
Hottest feels-like
33.1 °C
16 September 2024
Coldest feels-like
6.9 °C
4 January 1968
Sunniest day
12.0 h
8 May 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 | 24.2 °C | +1.3 °C | 113 mm | -70 mm |
| Feb | 22.9 °C | -0.4 °C | 373 mm | +149 mm |
| Mar | 23.4 °C | -0.1 °C | 334 mm | +2 mm |
| Apr | 22.8 °C | -0.4 °C | 495 mm | +70 mm |
| May | 22.8 °C | -0.6 °C | 341 mm | -38 mm |
| Jun | 23.0 °C | -0.9 °C | 209 mm | +1 mm |
| Jul | 24.9 °C | -0.1 °C | 40 mm | -85 mm |
| Aug | 24.0 °C | -1.5 °C | 134 mm | -25 mm |
| Sep | 24.2 °C | -0.5 °C | 201 mm | -59 mm |
| Oct | 21.9 °C | -1.1 °C | 362 mm | -58 mm |
| Nov | 21.9 °C | -0.7 °C | 408 mm | +19 mm |
| Dec | 21.7 °C | -1.1 °C | 263 mm | +14 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 Sonsón?
Sonsón has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 18.2 °C and it receives 3,352 mm of precipitation per year.
What is the hottest day ever recorded in Sonsón?
The hottest day measured in Sonsón between 1940 and 2025 was 15 September 2024, reaching 32.0 °C.
What is the coldest day in Sonsón?
The coldest day measured in Sonsón between 1940 and 2025 was 4 January 1968, at 8.3 °C.
Does it snow in Sonsón?
Almost never: Sonsón sees virtually no snow, with about 0 frost days per year.
Has the climate of Sonsón warmed?
Yes: Sonsón warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sonsón?
The wettest day measured in Sonsón between 1940 and 2025 was 22 March 1989, with 108 mm of rain in 24 hours.
What was the windiest day in Sonsón?
The windiest day measured in Sonsón between 1940 and 2025 was 30 July 1972, with winds reaching 14.8 km/h.
What is the warmest month in Sonsón?
The warmest month in Sonsón is August (18.9 °C on average); the coldest is January (17.7 °C).
How much does it rain in Sonsón?
Sonsón receives on average 3,352 mm of precipitation per year, spread over about 288 rainy days.
Is it sunny in Sonsón?
Sonsón gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Sonsón?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sonsón.
What was the most extreme apparent temperature in Sonsón?
In Sonsón, between 1940 and 2025, the highest apparent temperature reached 33.1 °C on 16 September 2024, and the lowest was 6.9 °C on 4 January 1968.
Compare Sonsón with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sonsón