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Seixal Weather and Climate: A Comprehensive Guide

The temperature in Seixal can vary greatly throughout the year. The temperatures shift from warm to mild. It receives a moderate amount of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to moderate in Seixal. On average, daytime temperatures range from a comfortable 27°C in August to a moderate 16°C in January.

Nighttime temperatures can drop, with average lows reaching 10°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Seixal has a moderate amount of precipitation, averaging 576 mm of rainfall annually. The seasons in Seixal, bring significant changes in precipitation. The wettest month, November, receives moderate rainfall, with an average of 83 mm of precipitation. This rainfall is distributed across 13 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 3.3 mm over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Seixal Precipitation page.

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

Sunshine over the year

In Seixal, summer days are longer and more sunny, with daily sunshine hours peaking at 11.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Lisbon, Portugal (8 KM, 5 Miles).

Daily hours of sunshine

Data from: Lisbon, Portugal (8 KM, 5 Miles).

Forecast for Seixal

Sun   Jan 12
19°C | 10°C
N 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Jan 13
15°C | 7°C
NE 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Tue   Jan 14
14°C | 3°C
NE 4 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Seixal in Portugal

During the months of May, June, 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:
  • When is summer in Seixal?
    The hottest season / summer takes place in June, July, August and September.
  • Does Seixal have a dry season?
    Yes, the months of June, July and August are very dry.
  • Which is the warmest month in Seixal?
    August has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Seixal?
    The coldest month is January with an average maximum temperature of 16°C.
  • Which is the wettest month in Seixal?
    November tops the wettest month list with 83 mm of rainfall.
  • Which is the driest month in Seixal?
    July is the driest month with 3 mm of precipitation.
  • Which is the sunniest month in Seixal?
    July is the sunniest month with an average of 352 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.