Climate averages 1991–2020
Viseu weather
in October.
A mild, wet month: the 6th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Viseu: daytime highs average 18.9°C and nights cool to about 10.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 168 mm of rain on roughly 12 days, which makes October a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average October day.
The nearest other city in this atlas is Aveiro (62 km away). In October its highs average 21.0°C, 2.1°C warmer than Viseu, with 143 mm of rain.
Among the 12 cities listed in Portugal, Viseu ranks 12th of 12 for the warmest October highs and 11th of 12 for the driest October (rainfall, lowest first). The mean October high of those 12 cities is 20.9°C; Viseu is 1.9°C cooler than that mean.
From October to November, average highs fall by 5.4°C to 13.6°C, and monthly rainfall falls from 168 mm to 150 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Aveiro in OctoberPortugal · 62 kmHigh 21.0°C · Low 13.4°C · 143 mm rain
- Coimbra in OctoberPortugal · 67 kmHigh 21.6°C · Low 12.3°C · 117 mm rain
- Porto in OctoberPortugal · 80 kmHigh 20.1°C · Low 13.1°C · 166 mm rain
- Braga in OctoberPortugal · 108 kmHigh 19.4°C · Low 10.7°C · 210 mm rain
- Leiria in OctoberPortugal · 127 kmHigh 21.6°C · Low 13.7°C · 96 mm rain
- Cáceres, Spain in OctoberSpain · 186 kmHigh 21.3°C · Low 12.2°C · 79 mm rain
- Ourense in OctoberSpain · 186 kmHigh 19.6°C · Low 10.7°C · 110 mm rain
- Vigo in OctoberSpain · 187 kmHigh 18.8°C · Low 12.4°C · 214 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.