Santa Rosa de Osos climate — normals and trends
Santa Rosa de Osos (Colombia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 15.9 °C and it receives 3,335 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 (16.3 °C on average) and the coldest is January (15.5 °C). Rainfall peaks in April.
Santa Rosa de Osos averages 0 frost days, 0 hot days (≥ 30 °C) and 294 rainy days per year.
Santa Rosa de Osos has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The hottest day of the period reached 27.5 °C (on 31 July 1972) and the coldest 6.0 °C (on 15 February 1963).
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
Santa Rosa de OsosAntioquia
- coords
- 6.65°, -75.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.9°C
Average daily high
21.0°C
Average daily low
12.2°C
Annual rainfall
3,335mm
Sunshine / day
9.1h
Mean relative humidity
86%
Average peak wind
6.1km/h
Seasonal range
0.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
294 d/yr
Annual snowfall
0.0 cm
Average feels-like high
22.9 °C
Average feels-like low
12.4 °C
Average peak gust
27.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.68 · 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
27.5 °C
31 July 1972
Coldest day
6.0 °C
15 February 1963
Wettest day
124 mm
25 March 1958
Windiest day
17.3 km/h
24 July 1997
Strongest gust
55.4 km/h
11 September 1991
Hottest feels-like
30.9 °C
26 March 1958
Coldest feels-like
4.5 °C
15 February 1963
Sunniest day
12.0 h
5 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 | 21.0 °C | +0.6 °C | 93 mm | -29 mm |
| Feb | 20.1 °C | -0.5 °C | 281 mm | +87 mm |
| Mar | 20.7 °C | 0.0 °C | 334 mm | +11 mm |
| Apr | 19.9 °C | -0.9 °C | 600 mm | +135 mm |
| May | 20.4 °C | -0.7 °C | 342 mm | -86 mm |
| Jun | 20.4 °C | -1.0 °C | 237 mm | -6 mm |
| Jul | 21.7 °C | -0.1 °C | 88 mm | -80 mm |
| Aug | 20.3 °C | -1.7 °C | 260 mm | +62 mm |
| Sep | 20.4 °C | -1.0 °C | 305 mm | +15 mm |
| Oct | 19.4 °C | -1.1 °C | 449 mm | +41 mm |
| Nov | 19.6 °C | -0.7 °C | 373 mm | +51 mm |
| Dec | 19.5 °C | -0.9 °C | 245 mm | +70 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 Santa Rosa de Osos?
Santa Rosa de Osos has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 15.9 °C and it receives 3,335 mm of precipitation per year.
What is the hottest day ever recorded in Santa Rosa de Osos?
The hottest day measured in Santa Rosa de Osos between 1940 and 2025 was 31 July 1972, reaching 27.5 °C.
What is the coldest day in Santa Rosa de Osos?
The coldest day measured in Santa Rosa de Osos between 1940 and 2025 was 15 February 1963, at 6.0 °C.
Does it snow in Santa Rosa de Osos?
Almost never: Santa Rosa de Osos sees virtually no snow, with about 0 frost days per year.
Has the climate of Santa Rosa de Osos warmed?
Yes: Santa Rosa de Osos warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Santa Rosa de Osos?
The wettest day measured in Santa Rosa de Osos between 1940 and 2025 was 25 March 1958, with 124 mm of rain in 24 hours.
What was the windiest day in Santa Rosa de Osos?
The windiest day measured in Santa Rosa de Osos between 1940 and 2025 was 24 July 1997, with winds reaching 17.3 km/h.
What is the warmest month in Santa Rosa de Osos?
The warmest month in Santa Rosa de Osos is July (16.3 °C on average); the coldest is January (15.5 °C).
How much does it rain in Santa Rosa de Osos?
Santa Rosa de Osos receives on average 3,335 mm of precipitation per year, spread over about 294 rainy days.
Is it sunny in Santa Rosa de Osos?
Santa Rosa de Osos gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
Are there tropical nights in Santa Rosa de Osos?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Santa Rosa de Osos.
What was the most extreme apparent temperature in Santa Rosa de Osos?
In Santa Rosa de Osos, between 1940 and 2025, the highest apparent temperature reached 30.9 °C on 26 March 1958, and the lowest was 4.5 °C on 15 February 1963.
Compare Santa Rosa de Osos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santa Rosa de Osos