Month guide · São Miguel do Couto, Portugal

São Miguel do Couto in September: weather and what to expect

In September, São Miguel do Couto averages highs of 24°C and lows of 15°C, with about 8 rainy days and 70 mm of rain. Highs are 2°C cooler than in August and 4°C warmer than in October. Crowds in Norte are high.

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

Average high Town-level24°CLow 15°C
Rainy days Town-level870 mm in total
UV index Modelled6High at noon on a clear day
Crowds RegionalHighNorte as a whole

Is September a good time to visit?

Good for

No verdicts for São Miguel do Couto in September yet. They only use climate values that are precise enough to judge with.

Not ideal for

Nothing stands out as a weaker fit.

Daily highs through September

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

Highs fall about 4°C over the month. Nights below 10°C in about 1 in 3.

September in detail

Town-level · ERA5-Land
MeasureAugustSeptemberOctober
Average high27°C24°C20°C
Average low17°C15°C12°C
Rainy days (at least 1 mm)5813
Total rainfall33 mm70 mm176 mm
Daylight (mid-month)13 h 53 min12 h 32 min11 h 11 min

Crowds, holidays and daylight

Visitor level RegionalHighNights booked through online platforms in Norte in September 2025: about 60% of the busiest month.

Public holidays in September 2027

No national or regional public holidays.

Local (municipal) holidays are not included.

Daylight mid-month Exact12 h 32 minSunrise to sunset, calculated from the town's coordinates.

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

How September is changing

Town-level · ERA5-Land

September highs are 2.2°C warmer than in 1991-2000, and September rainfall is down about 35% (2016-2025 against 1991-2000). Days above 25°C in September went from 6.7 to 13 a year on average.

Questions about São Miguel do Couto in September

How warm is São Miguel do Couto in September?

Average highs are 24°C and lows 15°C. August averages 27°C and October 20°C.

Does it rain much in São Miguel do Couto in September?

About 8 days have at least 1 mm of rain, with 70 mm in total over the month.

Is São Miguel do Couto busy in September?

In September 2025, nights booked through online platforms in Norte were about 60% of the busiest month, which we count as high. The figure is for the whole region and leaves out hotels.

How long are the days in São Miguel do Couto in September?

About 12 h 32 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