Gran Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gran.
Climate overview of Gran
The climate in Gran, Oppland, Norway, is marked by large temperature swings across the seasons, ranging from 21°C (70°F) in July to -2°C (28°F) in January.
The city has a wet climate, receiving around 1007 mm (40 in) of rain/snowfall per year. Despite the high annual total, it has pleasant summers and very cold winters. August is the wettest month. The sunniest month is May, with 8.0 hours of sunshine per day on average.
Gran Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gran - and find the best time to visit.
Monthly Temperature in Gran
In Gran, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 21°C (70°F) in July to a very cold -2°C (28°F) in January.
Nighttime temperatures range from 11°C (52°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gran
Gran experiences significant rain/snowfall throughout the year, averaging 1007 mm (40 in) of precipitation annually. The seasons in Gran bring significant changes in precipitation. The wettest month, August, receives high rainfall, with an average of 120 mm (4.7 in) of precipitation. This rainfall is distributed across 17 rainy days.
In contrast, the driest month, March, experiences much less snow/rainfall, totaling 54 mm (2.1 in) over 14 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Gran 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 Gran
In Gran, 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 1.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Gran by Month
The relative humidity is high throughout the year in Gran.
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 Gran
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May, June and July
- Fewer rainy days: February, March, April, May and June
- Seasonal pattern: Pleasant summers and very cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Gran
What is the best time to visit Gran?
July and August typically offer the most optimal weather in Gran. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Gran has pleasant summers and very cold winters.
What temperatures can I expect in Gran?
Daytime highs range from -2°C (28°F) in January to 21°C (70°F) in July. Nighttime lows range from -8°C (18°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Gran get?
Annual rainfall is around 1007 mm (40 in). August is the wettest month with 120 mm (4.7 in), while March is the driest with 54 mm (2.1 in).
How sunny is Gran?
Gran receives around 1,676 hours of sunshine per year. May is the sunniest month with 241 hours, while December is the cloudiest with just 39 hours.
Gran 3-Day Forecast
Gran on the map
Gran is highlighted - select any city to see its climate.
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