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Alella Weather and Climate: A Comprehensive Guide

The temperature in Alella can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and mild during the cooler months. It receives mid-range precipitation levels. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

Visitors to Alella can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 28°C in August, the warmest time of the year, to a moderate 14°C during cooler months like January.

At night, temperatures typically drop to an average of around 6°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Alella experiences moderate precipitation patterns, averaging 655 mm yearly. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives moderate rainfall, averaging 98 mm of precipitation, recorded across 11 rainy days. In contrast, the drier season, July brings less rainfall, with 29 mm over 5 rainy days. For more details, please visit our Alella Precipitation page.

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 Alella. While July receives considerable daily sunshine with up to 10.4 hours, December marks the darkest time of the year, where sunshine is scarce 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 (16 KM, 10 Miles).

Daily hours of sunshine

Data from: Barcelona, Spain (16 KM, 10 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 (16 KM, 10 Miles).

Average wind speed

The mean wind speed varies between 2 m/s and 2 m/s throughout the year. It is lowest in January, February, March, April, May, June, July, August, September, October, November and December and highest during January, February, March, April, May, June, July, August, September, October, November and December.

The mean monthly wind speed over the year (meters per second)

Data from: Barcelona, Spain (16 KM, 10 Miles).

Forecast for Alella

Sun   Dec 22
16°C | 8°C
W 6 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Dec 23
14°C | 5°C
S 2 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
12°C | 4°C
SE 1 m/s
partly cloudy and no rain

partly cloudy and no rain

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