Grândola Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grândola.
Climate overview of Grândola
Temperatures in Grândola, Alentejo, Portugal, vary greatly throughout the year. August is the hottest month at 30°C (86°F), while January is the coldest at 16°C (61°F).
Grândola sees a moderate amount of rainfall, totalling around 560 mm (22 in) per year. It experiences a distinct dry season from June to September, with warm summers and mild winters, creating some seasonal variation. The most sunshine falls in July, with an average of 12.3 hours of daily sunshine.
Grândola Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grândola - and find the best time to visit.
Monthly Temperature in Grândola
The climate in Grândola is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in August, the warmest time of the year, to a moderate 16°C (61°F) during cooler months like January.
At night, you can expect temperatures ranging from 17°C (63°F) in August to around 8°C (46°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grândola
Generally, Grândola receives mid-range precipitation levels, with 560 mm (22 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 77 mm (3 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month July brings less rainfall, with 2.4 mm (0.1 in) over a single rainy day. For more details, please visit our Grândola 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 Grândola
Seasonal changes in sunshine hours are quite dramatic in Grândola. While July receives considerable daily sunshine with up to 12.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Grândola by Month
The relative humidity is high throughout the year in Grândola.
The city experiences its highest humidity in January, reaching 81%. In July, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Grândola
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May, June, September and October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from June to September, with warm summers and mild winters
Frequently asked questions about the climate in Grândola
What is the best time to visit Grândola?
March, April, May, June, September and October typically offer the most optimal weather in Grândola. In contrast, January, February and December tend to have less optimal conditions. Grândola has a distinct dry season from June to September, with warm summers and mild winters.
What temperatures can I expect in Grândola?
Daytime highs range from 16°C (61°F) in January to 30°C (86°F) in August. Nighttime lows range from 8°C (46°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Grândola get?
Annual rainfall is around 560 mm (22 in). December is the wettest month with 77 mm (3 in), while July is the driest with 2.4 mm (0.1 in).
How sunny is Grândola?
Grândola receives around 2,932 hours of sunshine per year. July is the sunniest month with 370 hours, while December is the cloudiest with just 148 hours. Overall, Grândola enjoys abundant sunshine.
Grândola 3-Day Forecast
Grândola 3-Day Forecast
Grândola on the map
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