Month guide · Odemira, Portugal

Odemira in September: weather and what to expect

September is the last month of the year with average highs above 25°C in Odemira. In September, Odemira is among the 100 warmest of 759 towns in Portugal. In September, Odemira averages highs of 27°C and lows of 17°C, with about 4 rainy days and 27 mm of rain. Crowds in the Alentejo are medium.

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

Average high Town-level27°CLow 17°C
Sea temperature Modelled19°COpen sea nearby, average for the month
Rainy days Town-level427 mm in total
UV index Modelled7High at noon on a clear day
Crowds RegionalMediumThe Alentejo as a whole

Is September a good time to visit?

Good for

No verdicts for Odemira 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. A day above 35°C happens in roughly 1 September in 4.

September in detail

Town-level · ERA5-Land
MeasureAugustSeptemberOctober
Average high30°C27°C23°C
Average low18°C17°C15°C
Rainy days (at least 1 mm)149
Total rainfall5 mm27 mm72 mm
Daylight (mid-month)13 h 39 min12 h 29 min11 h 17 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 29 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Odemira
São Bartolomeu de Messines, Algarve29°C449 km
São Marcos da Serra, Algarve28°C435 km
Ermidas, Alentejo28°C450 km
Castro Verde, Alentejo28°C450 km
Silves, Algarve28°C449 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 2.1°C warmer than in 1991-2000, and September rainfall is down about 45% (2016-2025 against 1991-2000). Days above 30°C in September went from 5.1 to 9.0 a year on average.

Questions about Odemira in September

How warm is Odemira in September?

Average highs are 27°C and lows 17°C. August averages 30°C and October 23°C.

Does it rain much in Odemira in September?

About 4 days have at least 1 mm of rain, with 27 mm in total over the month.

Is Odemira 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 Odemira in September?

About 12 h 29 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