Gressvik Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gressvik.
Climate overview of Gressvik
Gressvik, Østfold, Norway, sees big temperature differences between seasons, with July peaking at 22°C (72°F) and January dropping to 3°C (37°F).
The city receives around 929 mm (37 in) of rain/snowfall per year. It experiences warm summers and cold winters. October is the wettest month and March the driest. The sunniest month is May, with 8.0 hours of sunshine per day on average.
Gressvik Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gressvik - and find the best time to visit.
Monthly Temperature in Gressvik
Visitors to Gressvik can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 22°C (72°F) in July to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gressvik
Generally, Gressvik experiences moderate precipitation patterns, averaging 929 mm (37 in) yearly. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 99 mm (3.9 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, March, still receives a respectable 51 mm (2 in) of snow/rainfall. For more details, please visit our Gressvik 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 Gressvik
In Gressvik, summer days are longer and more sunny, with daily sunshine hours peaking at 8.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.4 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Gressvik by Month
The relative humidity is high throughout the year in Gressvik.
The city experiences its highest humidity in November, reaching 86%. In May, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Gressvik
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, June and July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Gressvik
What is the best time to visit Gressvik?
June, July and August typically offer the most optimal weather in Gressvik. In contrast, January, February, March, November and December tend to have less optimal conditions. Gressvik has warm summers and cold winters.
What temperatures can I expect in Gressvik?
Daytime highs range from 3°C (37°F) in January to 22°C (72°F) in July. Nighttime lows range from -3°C (27°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Gressvik get?
Annual rainfall is around 929 mm (37 in). October is the wettest month with 99 mm (3.9 in), while March is the driest with 51 mm (2 in).
How sunny is Gressvik?
Gressvik receives around 1,674 hours of sunshine per year. May is the sunniest month with 240 hours, while December is the cloudiest with just 41 hours.
Gressvik 3-Day Forecast
Gressvik on the map
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