Month guide · Alcácer do Sal, Portugal

Alcácer do Sal in March: weather and what to expect

In March, Alcácer do Sal averages highs of 19°C and lows of 10°C, with about 8 rainy days and 57 mm of rain. Highs are 3°C warmer than in February and 1°C cooler than in April. Crowds in the Alentejo are low.

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

Average high Town-level19°CLow 10°C
Sea temperature Modelled15°COpen sea nearby, average for the month
Rainy days Town-level857 mm in total
UV index Modelled5Moderate at noon on a clear day
Crowds RegionalLowThe Alentejo as a whole

Is March a good time to visit?

Good for

No verdicts for Alcácer do Sal in March 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 March

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

Highs climb about 2°C over the month. A day above 25°C happens in roughly 1 March in 2; nights below 5°C in about 1 in 3.

March in detail

Town-level · ERA5-Land
MeasureFebruaryMarchApril
Average high16°C19°C20°C
Average low8°C10°C11°C
Rainy days (at least 1 mm)889
Total rainfall54 mm57 mm60 mm
Daylight (mid-month)10 h 45 min11 h 53 min13 h 09 min

Crowds, holidays and daylight

Visitor level RegionalLowNights booked through online platforms in the Alentejo in March 2025: about 15% of the busiest month.

Public holidays in March 2027

  • 26 Mar Good Friday
  • 28 Mar Easter Sunday

Local (municipal) holidays are not included.

Daylight mid-month Exact11 h 53 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Alcácer do Sal
Ermidas, Alentejo19°C843 km
Coruche, Oeste e Vale do Tejo19°C865 km
Neves, Alentejo19°C773 km
Ferreira do Alentejo, Alentejo19°C849 km
Benavente, Oeste e Vale do Tejo19°C872 km

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

How March is changing

Town-level · ERA5-Land

March highs are 1.6°C cooler than in 1991-2000, and March rainfall is up about 140% (2016-2025 against 1991-2000). Days above 20°C in March went from 14 to 8.4 a year on average.

Questions about Alcácer do Sal in March

How warm is Alcácer do Sal in March?

Average highs are 19°C and lows 10°C. February averages 16°C and April 20°C.

Does it rain much in Alcácer do Sal in March?

About 8 days have at least 1 mm of rain, with 57 mm in total over the month.

Is Alcácer do Sal busy in March?

In March 2025, nights booked through online platforms in the Alentejo were about 15% 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 Alcácer do Sal in March?

About 11 h 53 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