Grou Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grou.
Climate overview of Grou
The climate in Grou, Friesland, Netherlands, is marked by large temperature swings across the seasons, ranging from 22°C (72°F) in August to 7°C (45°F) in January.
Annual rain/snowfall is moderate at around 894 mm (35 in), with August being the wettest month. The city also has warm summers and cold winters. The sunniest month is May, with 7.8 hours of sunshine per day on average.
Grou Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grou - and find the best time to visit.
Monthly Temperature in Grou
In Grou, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 22°C (72°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).
At night, temperatures range from around 14°C (57°F) in August to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grou
On average, Grou receives a reasonable amount of rain/snowfall, with an annual precipitation of 894 mm (35 in). Grou experiences moderate seasonal variation in rainfall, with monthly averages ranging from 95 mm (3.7 in) in August, the wettest month, and 52 mm (2 in) in April, the driest month. For more details, please visit our Grou 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 Grou
Grou can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 7.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.1 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 Grou by Month
The city experiences its highest humidity in November, reaching 90%. In April, the humidity drops to its lowest level at 78%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Grou
The mean wind speed varies between 4 m/s (8 knots) and 6 m/s (12 knots) throughout the year. It is lowest in June, July and August and highest during January, February, March, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Grou
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: May and July
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Grou
What is the best time to visit Grou?
June, July and August typically offer the most optimal weather in Grou. In contrast, January, February, March, November and December tend to have less optimal conditions. Grou has warm summers and cold winters.
What temperatures can I expect in Grou?
Daytime highs range from 7°C (45°F) in January to 22°C (72°F) in August. Nighttime lows range from 2°C (36°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Grou get?
Annual rainfall is around 894 mm (35 in). August is the wettest month with 95 mm (3.7 in), while April is the driest with 52 mm (2 in).
How sunny is Grou?
Grou receives around 1,795 hours of sunshine per year. May is the sunniest month with 233 hours, while December is the cloudiest with just 62 hours.
Grou 3-Day Forecast
Grou on the map
Grou is highlighted - select any city to see its climate.
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