Climate averages 1991–2020
Coimbra weather
in May.
A warm, moderately wet month: the 5th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Coimbra: daytime highs average 22.0°C and nights cool to about 11.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 73 mm of rain on roughly 9 days, which makes May a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 23 min on an average May day.
The nearest other city in this atlas is Aveiro (52 km away). In May its highs average 21.2°C, 0.8°C cooler than Coimbra, with 79 mm of rain.
Among the 12 cities listed in Portugal, Coimbra ranks 2nd of 12 for the warmest May highs and 8th of 12 for the driest May (rainfall, lowest first). The mean May high of those 12 cities is 20.6°C; Coimbra is 1.4°C warmer than that mean.
From May to June, average highs rise by 3.5°C to 25.5°C, and monthly rainfall falls from 73 mm to 23 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Aveiro in MayPortugal · 52 kmHigh 21.2°C · Low 12.7°C · 79 mm rain
- Leiria in MayPortugal · 61 kmHigh 21.4°C · Low 12.7°C · 63 mm rain
- Viseu in MayPortugal · 67 kmHigh 20.0°C · Low 9.9°C · 98 mm rain
- Porto in MayPortugal · 106 kmHigh 20.1°C · Low 12.3°C · 101 mm rain
- Braga in MayPortugal · 150 kmHigh 19.9°C · Low 10.2°C · 121 mm rain
- Amadora in MayPortugal · 176 kmHigh 20.2°C · Low 13.6°C · 42 mm rain
- Lisbon in MayPortugal · 176 kmHigh 20.5°C · Low 14.3°C · 42 mm rain
- Queluz in MayPortugal · 176 kmHigh 19.2°C · Low 14.1°C · 42 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.