Month guide · Sines, Portugal

Sines in July: weather and what to expect

July is the driest month of the year in Sines. The sea is still cool, around 18°C. In July, Sines averages highs of 25°C and lows of 18°C, with almost no rainy days and 2 mm of rain. Our rules rate it good for beach days, walking and cycling. Crowds in the Alentejo are high.

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

Average high Town-level25°CLow 18°C
Sea temperature Modelled18°COpen sea nearby, average for the month
Rainy days Town-level02 mm in total
UV index Modelled9Very high at noon on a clear day
Crowds RegionalHighThe Alentejo as a whole

Is July a good time to visit?

Good for

  • Beach days
    Highs of 25°C and almost no rainy days
  • Walking and cycling
    Highs of 25°C with almost no rainy days

Not ideal for

Nothing stands out as a weaker fit.

Daily highs through July

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 30°C happens in roughly 1 July in 2.

July in detail

Town-level · ERA5-Land
MeasureJuneJulyAugust
Average high24°C25°C26°C
Average low16°C18°C18°C
Rainy days (at least 1 mm)201
Total rainfall11 mm2 mm4 mm
Daylight (mid-month)14 h 47 min14 h 34 min13 h 41 min

Crowds, holidays and daylight

Visitor level RegionalHighNights booked through online platforms in the Alentejo in July 2025: about 70% of the busiest month.

Public holidays in July 2027

No national or regional public holidays.

Local (municipal) holidays are not included.

Daylight mid-month Exact14 h 34 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Sines
Ferreira do Alentejo, Alentejo32°C067 km
Beringel, Alentejo32°C078 km
Aljustrel, Alentejo32°C062 km
Castro Verde, Alentejo32°C075 km
Ermidas, Alentejo31°C143 km

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

How July is changing

Town-level · ERA5-Land

July highs are 0.3°C warmer than in 1991-2000 (2016-2025 against 1991-2000). Days above 30°C in July went from 1.1 to 1.4 a year on average.

Questions about Sines in July

Is July a good time to visit Sines?

Our rules rate July good for beach days (highs of 25°C and almost no rainy days); walking and cycling (highs of 25°C with almost no rainy days).

How warm is Sines in July?

Average highs are 25°C and lows 18°C. June averages 24°C and August 26°C.

Does it rain much in Sines in July?

Hardly any days have at least 1 mm of rain, with 2 mm in total over the month.

Is Sines busy in July?

In July 2025, nights booked through online platforms in the Alentejo were about 70% of the busiest month, which we count as high. The figure is for the whole region and leaves out hotels.

How long are the days in Sines in July?

About 14 h 34 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