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Granollers Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Granollers.
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Climate overview of Granollers
Temperatures in Granollers, Catalonia, Spain, vary greatly throughout the year. August is the hottest month at 28°C (82°F), while January is the coldest at 13°C (55°F).
Granollers sees a moderate amount of rainfall, totalling around 751 mm (30 in) per year. It experiences warm summers and mild winters, creating some seasonal variation. The most sunshine falls in July, with an average of 10.4 hours of daily sunshine.
Granollers Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Granollers - and find the best time to visit.
Monthly Temperature in Granollers
The climate in Granollers is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in August, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in August to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Granollers
Generally, Granollers receives mid-range precipitation levels, with 751 mm (30 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives high rainfall, averaging 102 mm (4 in) of precipitation, recorded across 11 rainy days. In contrast, the driest month July brings less rainfall, with 43 mm (1.7 in) over 6 rainy days. For more details, please visit our Granollers Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Granollers
Seasonal changes in sunshine hours are quite dramatic in Granollers. 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 (26 KM, 16 Miles).
Daily hours of sunshine
Data from: Barcelona, Spain (26 KM, 16 Miles).
Humidity in Granollers by Month
The relative humidity is high throughout the year in Granollers.
The city experiences its highest humidity in September, reaching 74%. In July, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Barcelona, Spain (26 KM, 16 Miles).
Best Time to Visit Granollers
For comfortable weather, consider visiting Granollers in May, June, July, August and September. Conditions are usually least favourable in January.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
mixed
Feb
good
Mar
good
Apr
very good
May
excellent
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
very good
Nov
good
Dec
good
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July
- Seasonal pattern: Warm summers and mild winters
Frequently asked questions about the climate in Granollers
What is the best time to visit Granollers?
May, June, July, August and September typically offer the most optimal weather in Granollers. In contrast, January tends to have less optimal conditions. Granollers has warm summers and mild winters.
What temperatures can I expect in Granollers?
Daytime highs range from 13°C (55°F) in January to 28°C (82°F) in August. Nighttime lows range from 4°C (39°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Granollers get?
Annual rainfall is around 751 mm (30 in). October is the wettest month with 102 mm (4 in), while July is the driest with 43 mm (1.7 in).
How sunny is Granollers?
Granollers receives around 2,510 hours of sunshine per year. July is the sunniest month with 311 hours, while December is the cloudiest with just 137 hours. Overall, Granollers enjoys abundant sunshine.
Granollers 3-Day Forecast
Granollers on the map
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