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São Mateus Climate by Month

The weather in São Mateus sees moderate temperature fluctuations over the course of a year. Temperatures can be warm at the high end to roughly mild at the low end. It receives a moderate amount of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

In São Mateus, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a comfortable 24°C in August to a moderate 17°C in February. Nighttime temperatures can drop, with averages reaching 14°C in February.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

On average, São Mateus receives a reasonable amount of rainfall, with an annual precipitation of 914 mm. The seasons in São Mateus, bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 129 mm of precipitation. This rainfall is distributed across 19 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 30 mm over 12 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

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

The best time of year to visit São Mateus in Portugal

During the months of June, July, August, September 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:
  • Which is the warmest month in São Mateus?
    August has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in São Mateus?
    The coldest month is March with an average maximum temperature of 17°C.
  • Which is the wettest month in São Mateus?
    December tops the wettest month list with 129 mm of rainfall.
  • Which is the driest month in São Mateus?
    July is the driest month with 30 mm of precipitation.

  • 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 São Mateus

    Sun   Dec 15
    18°C | 14°C
    NE 36 km/h
    3.6 mm
    overcast and rain

    overcast and rain

    Mon   Dec 16
    19°C | 15°C
    NW 25 km/h
    1.6 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Tue   Dec 17
    17°C | 13°C
    SW 47 km/h
    20 mm
    partly cloudy and rain

    partly cloudy and rain