Climate averages 1991–2020
Viseu weather
in July.
A warm, fairly dry month: the 2nd warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Viseu: daytime highs average 27.6°C and nights cool to about 15.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 19 mm of rain on roughly 4 days, which makes July a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 46 min on an average July day.
The nearest other city in this atlas is Aveiro (62 km away). In July its highs average 26.8°C, 0.8°C cooler than Viseu, with 12 mm of rain.
Among the 12 cities listed in Portugal, Viseu ranks 3rd of 12 for the warmest July highs and 10th of 12 for the driest July (rainfall, lowest first). The mean July high of those 12 cities is 26.3°C; Viseu is 1.3°C warmer than that mean.
From July to August, average highs rise by 0.3°C to 27.9°C, and monthly rainfall rises from 19 mm to 26 mm.
The annual picture
July 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 | 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, selected | 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
July in nearby cities
- Aveiro in JulyPortugal · 62 kmHigh 26.8°C · Low 16.8°C · 12 mm rain
- Coimbra in JulyPortugal · 67 kmHigh 28.3°C · Low 16.0°C · 8.5 mm rain
- Porto in JulyPortugal · 80 kmHigh 25.6°C · Low 16.7°C · 23 mm rain
- Braga in JulyPortugal · 108 kmHigh 26.0°C · Low 15.1°C · 28 mm rain
- Leiria in JulyPortugal · 127 kmHigh 26.5°C · Low 16.6°C · 6.2 mm rain
- Cáceres, Spain in JulySpain · 186 kmHigh 32.7°C · Low 19.6°C · 4.5 mm rain
- Ourense in JulySpain · 186 kmHigh 26.6°C · Low 15.1°C · 24 mm rain
- Vigo in JulySpain · 187 kmHigh 23.6°C · Low 15.8°C · 35 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.