Month guide · Valença, Portugal

Valença in August: weather and what to expect

In August, Valença averages highs of 26°C and lows of 16°C, with about 6 rainy days and 50 mm of rain. Highs are about the same as in July and 2°C warmer than in September. Our rules rate it good for walking and cycling. Crowds in Norte are at their peak.

Based on 1991-2020 climate data · Updated 1 November 2026 · Sources

Average high Town-level26°CLow 16°C
Rainy days Town-level650 mm in total
UV index Modelled8Very high at noon on a clear day
Crowds RegionalPeakNorte as a whole

Is August a good time to visit?

Good for

  • Walking and cycling
    Highs of 26°C with about 6 rainy days

Not ideal for

Nothing stands out as a weaker fit.

Daily highs through August

Town-level · ERA5-Land 1991-2020
Usual range (8 in 10 years)Typical high

Highs stay about the same through the month. A day above 35°C happens in roughly 1 August in 5.

August in detail

Town-level · ERA5-Land
MeasureJulyAugustSeptember
Average high26°C26°C24°C
Average low16°C16°C15°C
Rainy days (at least 1 mm)669
Total rainfall37 mm50 mm95 mm
Daylight (mid-month)14 h 58 min13 h 56 min12 h 33 min

Crowds, holidays and daylight

Visitor level RegionalPeakNights booked through online platforms in Norte in August 2025: the busiest month of the year.

Public holidays in August 2027

  • 15 Aug Assumption Day

Local (municipal) holidays are not included.

Daylight mid-month Exact13 h 56 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Valença
Alcains, Centro31°C2254 km
Mirandela, Norte31°C3134 km
Aldeia de Joanes, Centro31°C3230 km
Sertã, Centro31°C3251 km
Fundão, Centro30°C3230 km

The nearest towns with a warmer August. Distances are in a straight line.

How August is changing

Town-level · ERA5-Land

August highs are 1.4°C warmer than in 1991-2000, and August rainfall is down about 60% (2016-2025 against 1991-2000). Days above 30°C in August went from 4.6 to 6.0 a year on average.

Questions about Valença in August

Is August a good time to visit Valença?

Our rules rate August good for walking and cycling (highs of 26°C with about 6 rainy days).

How warm is Valença in August?

Average highs are 26°C and lows 16°C. July averages 26°C and September 24°C.

Does it rain much in Valença in August?

About 6 days have at least 1 mm of rain, with 50 mm in total over the month.

Is Valença busy in August?

In August 2025, nights booked through online platforms in Norte were the busiest month of the year, which we count as peak. The figure is for the whole region and leaves out hotels.

How long are the days in Valença in August?

About 13 h 56 min from sunrise to sunset in the middle of the month.

Sources

Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology