Climate averages 1991–2020
Viseu weather
in April.
A mild, wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Viseu: daytime highs average 16.6°C and nights cool to about 7.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 118 mm of rain on roughly 13 days, which makes April a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 16 min on an average April day.
The nearest other city in this atlas is Aveiro (62 km away). In April its highs average 18.5°C, 1.9°C warmer than Viseu, with 98 mm of rain.
Among the 12 cities listed in Portugal, Viseu ranks 12th of 12 for the warmest April highs and 10th of 12 for the driest April (rainfall, lowest first). The mean April high of those 12 cities is 18.0°C; Viseu is 1.4°C cooler than that mean.
From April to May, average highs rise by 3.4°C to 20.0°C, and monthly rainfall falls from 118 mm to 98 mm.
The annual picture
April 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
Viseu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.5°C3.1°C | 3.1°C | 152 | 11.6 | 9.610 h |
| February | 12.0°C3.4°C | 3.4°C | 102 | 9.3 | 10.611 h |
| March | 15.0°C5.4°C | 5.4°C | 115 | 10.6 | 11.912 h |
| April, selected | 16.6°C7.1°C | 7.1°C | 118 | 12.8 | 13.313 h |
| May | 20.0°C9.9°C | 9.9°C | 98 | 11.6 | 14.414 h |
| June | 24.2°C13.1°C | 13.1°C | 40 | 6.2 | 15.015 h |
| July | 27.6°C15.4°C | 15.4°C | 19 | 3.6 | 14.815 h |
| August | 27.9°C15.8°C | 15.8°C | 26 | 4.6 | 13.814 h |
| September | 24.3°C13.7°C | 13.7°C | 66 | 7.1 | 12.513 h |
| October | 18.9°C10.5°C | 10.5°C | 168 | 12.2 | 11.211 h |
| November | 13.6°C6.4°C | 6.4°C | 150 | 12.7 | 10.010 h |
| December | 11.1°C4.1°C | 4.1°C | 160 | 11.6 | 9.39 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
April in nearby cities
- Aveiro in AprilPortugal · 62 kmHigh 18.5°C · Low 10.1°C · 98 mm rain
- Coimbra in AprilPortugal · 67 kmHigh 19.0°C · Low 8.9°C · 92 mm rain
- Porto in AprilPortugal · 80 kmHigh 17.5°C · Low 9.7°C · 121 mm rain
- Braga in AprilPortugal · 108 kmHigh 17.1°C · Low 7.5°C · 142 mm rain
- Leiria in AprilPortugal · 127 kmHigh 18.7°C · Low 10.4°C · 73 mm rain
- Cáceres, Spain in AprilSpain · 186 kmHigh 18.8°C · Low 8.6°C · 55 mm rain
- Ourense in AprilSpain · 186 kmHigh 17.3°C · Low 7.3°C · 84 mm rain
- Vigo in AprilSpain · 187 kmHigh 16.2°C · Low 9.1°C · 152 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 Viseu) is explained once on the Viseu year overview and on the Sources, method and limits page.