Pasto climate — normals and trends
Pasto (Colombia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °C and it receives 2,085 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 September (13.6 °C on average) and the coldest is July (12.9 °C). Rainfall peaks in April.
Pasto averages 0 frost days, 0 hot days (≥ 30 °C) and 296 rainy days per year.
Pasto 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 24.4 °C (on 30 September 1972) and the coldest 2.9 °C (on 23 November 1954).
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
PastoNariño
- coords
- 1.21°, -77.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
18.2°C
Average daily low
9.9°C
Annual rainfall
2,085mm
Sunshine / day
9.4h
Mean relative humidity
81%
Average peak wind
9.4km/h
Seasonal range
0.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
296 d/yr
Annual snowfall
0.0 cm
Average feels-like high
18.4 °C
Average feels-like low
8.6 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.73 · 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
24.4 °C
30 September 1972
Coldest day
2.9 °C
23 November 1954
Wettest day
77 mm
9 February 1998
Windiest day
22.4 km/h
14 September 1954
Strongest gust
85.0 km/h
21 July 1951
Hottest feels-like
27.6 °C
26 November 2011
Coldest feels-like
0.4 °C
23 November 1954
Sunniest day
12.0 h
1 October 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 | 18.8 °C | +0.7 °C | 212 mm | +30 mm |
| Feb | 17.6 °C | -0.6 °C | 320 mm | +125 mm |
| Mar | 18.1 °C | -0.1 °C | 427 mm | +188 mm |
| Apr | 18.6 °C | +0.4 °C | 365 mm | +115 mm |
| May | 18.1 °C | 0.0 °C | 171 mm | -27 mm |
| Jun | 17.4 °C | -0.2 °C | 190 mm | +68 mm |
| Jul | 17.5 °C | -0.1 °C | 113 mm | +25 mm |
| Aug | 17.9 °C | -0.5 °C | 122 mm | +58 mm |
| Sep | 18.1 °C | -1.0 °C | 124 mm | +25 mm |
| Oct | 17.1 °C | -1.5 °C | 294 mm | +89 mm |
| Nov | 17.1 °C | -0.9 °C | 294 mm | +63 mm |
| Dec | 17.1 °C | -0.8 °C | 125 mm | -85 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 Pasto?
Pasto has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 2,085 mm of precipitation per year.
What is the hottest day ever recorded in Pasto?
The hottest day measured in Pasto between 1940 and 2025 was 30 September 1972, reaching 24.4 °C.
What is the coldest day in Pasto?
The coldest day measured in Pasto between 1940 and 2025 was 23 November 1954, at 2.9 °C.
Does it snow in Pasto?
Almost never: Pasto sees virtually no snow, with about 0 frost days per year.
Has the climate of Pasto warmed?
Yes: Pasto warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pasto?
The wettest day measured in Pasto between 1940 and 2025 was 9 February 1998, with 77 mm of rain in 24 hours.
What was the windiest day in Pasto?
The windiest day measured in Pasto between 1940 and 2025 was 14 September 1954, with winds reaching 22.4 km/h.
What is the warmest month in Pasto?
The warmest month in Pasto is September (13.6 °C on average); the coldest is July (12.9 °C).
How much does it rain in Pasto?
Pasto receives on average 2,085 mm of precipitation per year, spread over about 296 rainy days.
Is it sunny in Pasto?
Pasto gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Pasto?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Pasto.
What was the most extreme apparent temperature in Pasto?
In Pasto, between 1940 and 2025, the highest apparent temperature reached 27.6 °C on 26 November 2011, and the lowest was 0.4 °C on 23 November 1954.
Compare Pasto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pasto