Hafslo Weather in September
During September, Hafslo experiences moderate daytime temperatures of 12°C (54°F) and cooler nights around 6°C (43°F). Expect quite a bit of rainfall. Around 150 mm (5.9 in) is typical.
Rainfall in Hafslo in September
This month experiences about 21 days of rain according to historical data, averaging 150 mm (5.9 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Hafslo in September
In September, expect moderate temperatures in Hafslo, with highs of 12°C (54°F) and lows of 6°C (43°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.September in Hafslo can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
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 Hafslo's climate page.
Hafslo Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
12°C (54°F)
Chance of Rain
70%
Precipitation
150 mm (5.9 in)
Rainy days
21 days
Daily Historical Temperatures
49-year average (1977-2025)
Based on our historical records, temperatures in Hafslo typically drop from around 14°C (57°F) at the start of September to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 7°C (45°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Hafslo in September
Browse day-by-day weather records for Hafslo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hafslo historical weather extremes in September
The extremes listed below come from historical weather data collected in Hafslo from 1977 through 2025.
- The hottest September day on record in Hafslo reached 22°C (72°F) (September 8, 2023).
- Hafslo experienced its chilliest September day on September 5, 1982, reaching only -2°C (28°F).
- Hafslo registered its coldest September night on September 6, 1982, with temperatures dropping to -6°C (21°F).
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
pleasant
tolerable
unpleasant
poor
What to Wear in Hafslo in September
Pack for changing conditions in Hafslo 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!What To Do in Hafslo 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 Hafslo's climate page.
See the full Hafslo climate overview or explore weather in Norway.
