Month guide · Ponte de Sôr, Portugal

Ponte de Sôr in September: weather and what to expect

In September, Ponte de Sôr averages highs of 29°C and lows of 16°C, with about 5 rainy days and 35 mm of rain. Highs are 4°C cooler than in August and 6°C warmer than in October. Crowds in the Alentejo are medium.

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

Average high Town-level29°CLow 16°C
Rainy days Town-level535 mm in total
UV index Modelled6High at noon on a clear day
Crowds RegionalMediumThe Alentejo as a whole

Is September a good time to visit?

Good for

No verdicts for Ponte de Sôr 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 5°C over the month.

September in detail

Town-level · ERA5-Land
MeasureAugustSeptemberOctober
Average high33°C29°C23°C
Average low18°C16°C13°C
Rainy days (at least 1 mm)259
Total rainfall8 mm35 mm85 mm
Daylight (mid-month)13 h 45 min12 h 31 min11 h 15 min

Crowds, holidays and daylight

Visitor level RegionalMediumNights booked through online platforms in the Alentejo in September 2025: about 50% 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 31 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Ponte de Sôr
Neves, Alentejo29°C4137 km
Moura, Alentejo29°C4133 km
Serpa, Alentejo29°C4149 km
Salvada, Alentejo29°C4147 km
Cabeça Gorda, Alentejo29°C4149 km

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

How September is changing

Town-level · ERA5-Land

September highs are 2.5°C warmer than in 1991-2000, and September rainfall is down about 15% (2016-2025 against 1991-2000). Days above 30°C in September went from 8.5 to 14 a year on average.

Questions about Ponte de Sôr in September

How warm is Ponte de Sôr in September?

Average highs are 29°C and lows 16°C. August averages 33°C and October 23°C.

Does it rain much in Ponte de Sôr in September?

About 5 days have at least 1 mm of rain, with 35 mm in total over the month.

Is Ponte de Sôr busy in September?

In September 2025, nights booked through online platforms in the Alentejo were about 50% of the busiest month, which we count as medium. The figure is for the whole region and leaves out hotels.

How long are the days in Ponte de Sôr in September?

About 12 h 31 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