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Climate · Valença do Douro

Valença do Douro in September

Warm and mostly dry, as the days shorten.

Typical weather, averaged over 30 years

September in Valença do Douro is warm: highs near 83°F, lows near 59°F. Rain falls on about one day a week, and the days shorten by 59 minutes from the first week to the last.September in Valença do Douro is warm: highs near 28°C, lows near 15°C. Rain falls on about one day a week, and the days shorten by 59 minutes from the first week to the last.

High
83°F28°Caverage
Low
59°F15°Caverage
Wet days
1a week · 21% of days
Daylight
12h 23mon average

Is September a good time to visit Valença do Douro?

Yes. September is one of Valença do Douro's best months (May to June, or September to October).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 83°F in September, against 56°F to 90°F through the year.Highs near 28°C in September, against 13°C to 32°C through the year.

Chance of a wet day

21% of days in September, against 12% to 39% through the year.

Cloud cover

41% cover in September, against 24% to 64% through the year.

Daylight

12h 23m in September, against 9h 15m to 15h 05m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August90°32°low 62°low 17°1 wet day a weekRain on about one day a week.
  2. September83°28°low 59°low 15°1 wet day a weekRain on about one day a week.
  3. October75°24°low 54°low 12°2 wet days a weekRain on about two days a week.

Where Valença do Douro sits, in September

Europe/Lisbon
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
7:09 AMsets 7:42 PM
Above the sea
175 mlow-lying
Latitude
41.2°Nnorthern hemisphere
Nearest of ours
Porto88 km west

The land around Valença do Douro, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Portugal in September

high · low · wet days
See September on the planning mapThe whole year in Valença do Douro

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Valença do Douro. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (175 m) against the climate model's (394 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (175 m) against the climate model's (394 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.