Month guide · Almancil, Portugal

Almancil in September: weather and what to expect

In September, Almancil averages highs of 26°C and lows of 19°C, with about 4 rainy days and 23 mm of rain. Highs are 3°C cooler than in August and 4°C warmer than in October. Our rules rate it good for walking and cycling. Crowds in the Algarve are medium.

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

Average high Town-level26°CLow 19°C
Sea temperature Modelled21°COpen sea nearby, average for the month
Rainy days Town-level423 mm in total
UV index Modelled7High at noon on a clear day
Crowds RegionalMediumThe Algarve as a whole

Is September a good time to visit?

Good for

  • Walking and cycling
    Highs of 26°C with about 4 rainy days

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 3°C over the month. A day above 30°C happens in roughly 1 September in 2; nights below 15°C in about 1 in 2.

September in detail

Town-level · ERA5-Land
MeasureAugustSeptemberOctober
Average high29°C26°C22°C
Average low20°C19°C16°C
Rainy days (at least 1 mm)048
Total rainfall3 mm23 mm69 mm
Daylight (mid-month)13 h 38 min12 h 29 min11 h 18 min

Crowds, holidays and daylight

Visitor level RegionalMediumNights booked through online platforms in the Algarve in September 2025: about 55% 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 Almancil
Albufeira, Algarve28°C419 km
Paderne, Algarve28°C418 km
Guia, Algarve28°C424 km
Ferreiras, Algarve28°C419 km
Tunes, Algarve28°C422 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 1.2°C warmer than in 1991-2000, and September rainfall is down about 40% (2016-2025 against 1991-2000). Days above 30°C in September went from 1.3 to 1.6 a year on average.

Questions about Almancil in September

Is September a good time to visit Almancil?

Our rules rate September good for walking and cycling (highs of 26°C with about 4 rainy days).

How warm is Almancil in September?

Average highs are 26°C and lows 19°C. August averages 29°C and October 22°C.

Does it rain much in Almancil in September?

About 4 days have at least 1 mm of rain, with 23 mm in total over the month.

Is Almancil busy in September?

In September 2025, nights booked through online platforms in the Algarve were about 55% 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 Almancil 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