Climate averages 1991–2020
Coimbra weather
in August.
A hot, very dry month: the warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Coimbra: daytime highs average 28.9°C and nights cool to about 16.5°C. By daytime temperature it is the warmest month of the year.
Expect about 14 mm of rain on roughly 3 days, which makes August a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 46 min on an average August day.
The nearest other city in this atlas is Aveiro (52 km away). In August its highs average 27.3°C, 1.6°C cooler than Coimbra, with 17 mm of rain.
Among the 12 cities listed in Portugal, Coimbra ranks joint 1st of 12 for the warmest August highs and 8th of 12 for the driest August (rainfall, lowest first). The mean August high of those 12 cities is 26.8°C; Coimbra is 2.1°C warmer than that mean.
From August to September, average highs fall by 2.6°C to 26.3°C, and monthly rainfall rises from 14 mm to 49 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
Coimbra climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.6°C4.9°C | 4.9°C | 108 | 10.8 | 9.710 h |
| February | 14.8°C5.3°C | 5.3°C | 81 | 8.7 | 10.611 h |
| March | 17.6°C7.3°C | 7.3°C | 85 | 9.6 | 11.912 h |
| April | 19.0°C8.9°C | 8.9°C | 92 | 10.7 | 13.213 h |
| May | 22.0°C11.5°C | 11.5°C | 73 | 9.2 | 14.414 h |
| June | 25.5°C14.4°C | 14.4°C | 23 | 5.0 | 15.015 h |
| July | 28.3°C16.0°C | 16.0°C | 8.5 | 2.2 | 14.715 h |
| August, selected | 28.9°C16.5°C | 16.5°C | 14 | 3.1 | 13.814 h |
| September | 26.3°C15.0°C | 15.0°C | 49 | 6.0 | 12.512 h |
| October | 21.6°C12.3°C | 12.3°C | 117 | 11.2 | 11.211 h |
| November | 16.6°C8.4°C | 8.4°C | 117 | 11.9 | 10.010 h |
| December | 14.3°C6.0°C | 6.0°C | 111 | 10.9 | 9.49 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
- Aveiro in AugustPortugal · 52 kmHigh 27.3°C · Low 17.2°C · 17 mm rain
- Leiria in AugustPortugal · 61 kmHigh 27.1°C · Low 16.9°C · 9.6 mm rain
- Viseu in AugustPortugal · 67 kmHigh 27.9°C · Low 15.8°C · 26 mm rain
- Porto in AugustPortugal · 106 kmHigh 26.2°C · Low 17.2°C · 29 mm rain
- Braga in AugustPortugal · 150 kmHigh 26.4°C · Low 15.4°C · 39 mm rain
- Amadora in AugustPortugal · 176 kmHigh 26.2°C · Low 18.0°C · 4.1 mm rain
- Lisbon in AugustPortugal · 176 kmHigh 26.3°C · Low 18.6°C · 4.1 mm rain
- Queluz in AugustPortugal · 176 kmHigh 24.4°C · Low 18.2°C · 4.1 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 Coimbra) is explained once on the Coimbra year overview and on the Sources, method and limits page.