ClimateForecastDecemberJanuary >>

Mértola Climate by Month

Mértola experiences great temperature shifts. The city's weather can transition from very warm days to mild weather. It maintains fairly dry conditions year-round. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The climate in Mértola is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures range from a very warm 34°C in July, the warmest time of the year, to a moderate 16°C during cooler months like January. At night, temperatures typically average around 6°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Mértola has a relatively dry climate with low precipitation, averaging 443 mm of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives moderate rainfall, averaging 62 mm of precipitation, recorded across 9 rainy days. In contrast, the drier season, July brings less rainfall, with 1.7 mm over a single rainy day.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Mértola. While July receives considerable daily sunshine with up to 12.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.

Monthly hours of sunshine

Data from: Beja, Portugal (45 KM, 28 Miles).

Daily hours of sunshine

Data from: Beja, Portugal (45 KM, 28 Miles).

The best time of year to visit Mértola in Portugal

During the months of March, April and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Mértola have a dry season?
    Yes, the months of June, July and August are very dry.
  • Which is the warmest month in Mértola?
    July has an average maximum temperature of 34°C and is the warmest month of the year.
  • Which is the coldest month in Mértola?
    The coldest month is January with an average maximum temperature of 16°C.
  • Which is the wettest month in Mértola?
    October tops the wettest month list with 62 mm of rainfall.
  • Which is the driest month in Mértola?
    July is the driest month with 2 mm of precipitation.
  • Which is the sunniest month in Mértola?
    July is the sunniest month with an average of 370 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Mértola

    Sun   Dec 15
    18°C | 5°C
    E 14 km/h
    broken clouds and no rain

    broken clouds and no rain

    Mon   Dec 16
    17°C | 6°C
    SE 18 km/h
    broken clouds and no rain

    broken clouds and no rain

    Tue   Dec 17
    17°C | 6°C
    SE 14 km/h
    almost clear and no rain

    almost clear and no rain