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Climate · Coimbra

Coimbra in September

Warm and mostly dry, as the days shorten.

Typical weather, averaged over 30 years

September in Coimbra is warm: highs near 84°F, lows near 59°F. Rain falls on about two days a week, more often as the month goes on, and the days shorten by 57 minutes from the first week to the last.September in Coimbra is warm: highs near 29°C, lows near 15°C. Rain falls on about two days a week, more often as the month goes on, and the days shorten by 57 minutes from the first week to the last.

High
84°F29°Caverage
Low
59°F15°Caverage
Wet days
2a week · 22% of days
Daylight
12h 22mon average

Is September a good time to visit Coimbra?

Yes. September is one of Coimbra'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 84°F in September, against 60°F to 88°F through the year.Highs near 29°C in September, against 16°C to 31°C through the year.

Chance of a wet day

22% of days in September, against 9% to 44% through the year.

Cloud cover

38% cover in September, against 20% to 57% through the year.

Daylight

12h 22m in September, against 9h 21m to 14h 59m 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. August88°31°low 62°low 17°1 wet day a weekRain on about one day a week.
  2. September84°29°low 59°low 15°2 wet days a weekRain on about two days a week.
  3. October77°25°low 56°low 13°3 wet days a weekRain on about three days a week.

Where Coimbra sits, in September

Europe/Lisbon
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
7:13 AMsets 7:45 PM
Above the sea
20 mlow-lying
Latitude
40.2°Nnorthern hemisphere
Nearest of ours
Porto106 km north

The land around Coimbra, 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 Coimbra

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Coimbra. 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 (20 m) against the climate model's (125 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 (20 m) against the climate model's (125 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.