Month guide · Nisa, Portugal

Nisa in October: weather and what to expect

In October, Nisa averages highs of 22°C and lows of 13°C, with about 10 rainy days and 90 mm of rain. Highs are 6°C cooler than in September and 6°C warmer than in November. Crowds in the Alentejo are low.

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

Average high Town-level22°CLow 13°C
Rainy days Town-level1090 mm in total
UV index Modelled4Moderate at noon on a clear day
Crowds RegionalLowThe Alentejo as a whole

Is October a good time to visit?

Good for

No verdicts for Nisa in October yet. They only use climate values that are precise enough to judge with.

Not ideal for

  • Reliable dry weather
    About 10 rainy days in the month

Daily highs through October

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

Highs fall about 5°C over the month. A day above 30°C happens in roughly 1 October in 4.

October in detail

Town-level · ERA5-Land
MeasureSeptemberOctoberNovember
Average high27°C22°C16°C
Average low16°C13°C8°C
Rainy days (at least 1 mm)51010
Total rainfall40 mm90 mm85 mm
Daylight (mid-month)12 h 31 min11 h 14 min10 h 03 min

Crowds, holidays and daylight

Visitor level RegionalLowNights booked through online platforms in the Alentejo in October 2025: about 25% of the busiest month.

Public holidays in October 2027

  • 5 Oct Republic Day

Local (municipal) holidays are not included.

Daylight mid-month Exact11 h 14 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Nisa
Ponte de Sôr, Alentejo23°C943 km
Alferrarede, Oeste e Vale do Tejo23°C1045 km
Pego, Oeste e Vale do Tejo23°C1043 km
Avis, Alentejo23°C955 km
Tramagal, Oeste e Vale do Tejo22°C1052 km

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

How October is changing

Town-level · ERA5-Land

October highs are 3.1°C warmer than in 1991-2000, and October rainfall is about the same (2016-2025 against 1991-2000). Days above 25°C in October went from 4.9 to 12 a year on average.

Questions about Nisa in October

Is October a good time to visit Nisa?

It is less suited to reliable dry weather (about 10 rainy days in the month).

How warm is Nisa in October?

Average highs are 22°C and lows 13°C. September averages 27°C and November 16°C.

Does it rain much in Nisa in October?

About 10 days have at least 1 mm of rain, with 90 mm in total over the month.

Is Nisa busy in October?

In October 2025, nights booked through online platforms in the Alentejo were about 25% of the busiest month, which we count as low. The figure is for the whole region and leaves out hotels.

How long are the days in Nisa in October?

About 11 h 14 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