Tumaco climate — normals and trends
Tumaco (Colombia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 3,265 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 (25.8 °C on average) and the coldest is November (25.0 °C). Rainfall peaks in January.
Tumaco averages 0 frost days, 0 hot days (≥ 30 °C) and 306 rainy days per year.
Tumaco has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.3 °C (on 4 April 1998) and the coldest 22.1 °C (on 22 August 1975).
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
TumacoNariño
- coords
- 1.79°, -78.79°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
26.6°C
Average daily low
24.3°C
Annual rainfall
3,265mm
Sunshine / day
8.2h
Mean relative humidity
85%
Average peak wind
18.0km/h
Seasonal range
0.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
306 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.7 °C
Average feels-like low
27.6 °C
Average peak gust
28.2 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.47 · 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
30.3 °C
4 April 1998
Coldest day
22.1 °C
22 August 1975
Wettest day
266 mm
4 May 1997
Windiest day
34.3 km/h
15 January 2000
Strongest gust
50.8 km/h
29 January 1941
Hottest feels-like
37.7 °C
4 April 1998
Coldest feels-like
22.9 °C
15 November 1975
Sunniest day
12.0 h
15 October 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 | 27.3 °C | +0.8 °C | 374 mm | -49 mm |
| Feb | 27.1 °C | +0.3 °C | 728 mm | +406 mm |
| Mar | 28.0 °C | +0.9 °C | 233 mm | -45 mm |
| Apr | 28.1 °C | +0.9 °C | 521 mm | +162 mm |
| May | 27.9 °C | +0.7 °C | 333 mm | -35 mm |
| Jun | 27.4 °C | +0.6 °C | 301 mm | +36 mm |
| Jul | 27.2 °C | +0.7 °C | 127 mm | -85 mm |
| Aug | 26.8 °C | +0.4 °C | 128 mm | -55 mm |
| Sep | 26.6 °C | +0.3 °C | 173 mm | -11 mm |
| Oct | 26.6 °C | +0.3 °C | 182 mm | -43 mm |
| Nov | 26.5 °C | +0.3 °C | 221 mm | +37 mm |
| Dec | 26.5 °C | +0.2 °C | 82 mm | -178 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 Tumaco?
Tumaco has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 3,265 mm of precipitation per year.
What is the hottest day ever recorded in Tumaco?
The hottest day measured in Tumaco between 1940 and 2025 was 4 April 1998, reaching 30.3 °C.
What is the coldest day in Tumaco?
The coldest day measured in Tumaco between 1940 and 2025 was 22 August 1975, at 22.1 °C.
Does it snow in Tumaco?
Almost never: Tumaco sees virtually no snow, with about 0 frost days per year.
Has the climate of Tumaco warmed?
Yes: Tumaco warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tumaco?
The wettest day measured in Tumaco between 1940 and 2025 was 4 May 1997, with 266 mm of rain in 24 hours.
What was the windiest day in Tumaco?
The windiest day measured in Tumaco between 1940 and 2025 was 15 January 2000, with winds reaching 34.3 km/h.
What is the warmest month in Tumaco?
The warmest month in Tumaco is April (25.8 °C on average); the coldest is November (25.0 °C).
How much does it rain in Tumaco?
Tumaco receives on average 3,265 mm of precipitation per year, spread over about 306 rainy days.
Is it sunny in Tumaco?
Tumaco gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
Are there tropical nights in Tumaco?
Yes: Tumaco has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tumaco?
In Tumaco, between 1940 and 2025, the highest apparent temperature reached 37.7 °C on 4 April 1998, and the lowest was 22.9 °C on 15 November 1975.
Compare Tumaco with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tumaco