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Sant Joan Despí Weather and Climate: A Comprehensive Guide

The temperature in Sant Joan Despí can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and mild during the cooler months. It receives a reasonable amount of rainfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Sant Joan Despí can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 28°C in August. In January, the coolest month of the year, temperatures drop to a moderate 14°C.

At night, you can expect cooler temperatures, with averages dropping to around 6°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Sant Joan Despí experiences moderate precipitation patterns, averaging 656 mm yearly. Sant Joan Despí can be quite wet during October, receiving approximately 98 mm of precipitation over 11 rainy days.

In contrast July, experiences much drier conditions, with 29 mm of rainfall, spread across 5 rainy days. For more details, please visit our Sant Joan Despí Precipitation page.

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

Sunshine over the year

Sant Joan Despí can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Barcelona, Spain (8 KM, 5 Miles).

Daily hours of sunshine

Data from: Barcelona, Spain (8 KM, 5 Miles).

Average water temperature

The mean water temperature over the year ranges from 13°C in January to 24°C in August.

Water temperature over the year

Data from: Barcelona, Spain (8 KM, 5 Miles).

Forecast for Sant Joan Despí

Sun   Dec 22
15°C | 6°C
W 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Dec 23
13°C | 4°C
W 3 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
13°C | 3°C
SE 2 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Sant Joan Despí in Spain

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 Sant Joan Despí?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Sant Joan Despí?
    August has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Sant Joan Despí?
    The coldest month is January with an average maximum temperature of 14°C.
  • Which is the wettest month in Sant Joan Despí?
    October tops the wettest month list with 98 mm of rainfall.
  • Which is the driest month in Sant Joan Despí?
    July is the driest month with 29 mm of precipitation.
  • Which is the sunniest month in Sant Joan Despí?
    July is the sunniest month with an average of 311 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.