Climate averages 1991–2020
Pasto weather
in August.
A mild, moderately wet month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Pasto: daytime highs average 18.5°C and nights cool to about 10.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 63 mm of rain on roughly 17 days, which makes August a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average August day.
The nearest other city in this atlas is Ipiales (59 km away). In August its highs average 14.7°C, 3.8°C cooler than Pasto, with 94 mm of rain.
Among the 46 cities listed in Colombia, Pasto ranks 45th of 46 for the warmest August highs and joint 9th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 26.5°C; Pasto is 8.0°C cooler than that mean.
From August to September, average highs rise by 0.4°C to 18.9°C, and monthly rainfall rises from 63 mm to 99 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Pasto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.6°C10.9°C | 10.9°C | 177 | 22.4 | 12.112 h |
| February | 17.9°C11.0°C | 11.0°C | 184 | 22.6 | 12.112 h |
| March | 17.9°C11.1°C | 11.1°C | 235 | 27.5 | 12.112 h |
| April | 17.9°C11.3°C | 11.3°C | 231 | 27.5 | 12.112 h |
| May | 17.8°C11.3°C | 11.3°C | 181 | 27.3 | 12.212 h |
| June | 17.6°C11.0°C | 11.0°C | 114 | 23.7 | 12.212 h |
| July | 17.6°C10.5°C | 10.5°C | 92 | 22.2 | 12.212 h |
| August, selected | 18.5°C10.2°C | 10.2°C | 63 | 16.6 | 12.212 h |
| September | 18.9°C10.3°C | 10.3°C | 99 | 19.9 | 12.112 h |
| October | 18.1°C10.6°C | 10.6°C | 195 | 25.2 | 12.112 h |
| November | 17.3°C10.8°C | 10.8°C | 244 | 26.5 | 12.112 h |
| December | 17.4°C10.9°C | 10.9°C | 221 | 25.7 | 12.112 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Ipiales in AugustColombia · 59 kmHigh 14.7°C · Low 7.7°C · 94 mm rain
- Tulcán in AugustEcuador · 66 kmHigh 15.6°C · Low 8.2°C · 94 mm rain
- Ibarra in AugustEcuador · 135 kmHigh 21.0°C · Low 10.0°C · 66 mm rain
- Pitalito in AugustColombia · 154 kmHigh 21.6°C · Low 13.2°C · 231 mm rain
- Popayán in AugustColombia · 155 kmHigh 23.0°C · Low 13.8°C · 64 mm rain
- Tumaco in AugustColombia · 180 kmHigh 26.6°C · Low 24.0°C · 210 mm rain
- Florencia in AugustColombia · 191 kmHigh 26.1°C · Low 17.7°C · 121 mm rain
- Cali in AugustColombia · 260 kmHigh 26.6°C · Low 18.3°C · 143 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Pasto) is explained once on the Pasto year overview and on the Sources, method and limits page.