Geilo Weather in September
Thinking of visiting Geilo in September? Expect low temperatures reaching 11°C (52°F) during the day, dropping to 3°C (37°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Geilo in September
The climate data from previous years indicates about 17 days of rain, averaging 94 mm (3.7 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Geilo in September
Temperatures in Geilo in September top out at 11°C (52°F) and drop to 3°C (37°F) overnight. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you prefer dry days with pleasant temperatures, June and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Geilo's climate page.
Geilo Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
11°C (52°F)
Chance of Rain
55%
Precipitation
94 mm (3.7 in)
Rainy days
17 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Geilo typically drop from around 15°C (59°F) at the start of September to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Geilo in September
Browse day-by-day weather records for Geilo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Geilo historical weather extremes in September
According to our 49 years of weather records for Geilo, the following extremes were recorded between 1976 and 2025.
- On September 4, 1999, temperatures climbed to 25°C (77°F), marking the warmest September day on record.
- On September 29, 1985, Geilo saw its coldest September day with temperatures maxing out at 3°C (37°F).
- The coldest night in September in Geilo was on September 17, 1993, with a minimum of -6°C (21°F).
- Peak precipitation in September occurred on September 14, 2005, when 37 mm (1.5 in) of precipitation was measured.
Best Places in Norway in September
Find out more about the weather in Norway and which places have the best travel conditions in this month. See all of Norway in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Geilo in September
Pack for changing conditions in Geilo in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Geilo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Geilo's climate page.
See the full Geilo climate overview or explore weather in Norway.
