Härnösand Weather in September
Härnösand in September sees moderate daytime temperatures of 15°C (59°F) and nighttime lows of 9°C (48°F). Rainfall is fairly high this month at around 67 mm (2.6 in), so pack a rain jacket to stay dry.
Rainfall in Härnösand in September
You can expect rain on roughly 15 days based on historical data, averaging 67 mm (2.6 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Härnösand in September
Daytime highs in Härnösand in September reach 15°C (59°F), with nights around 9°C (48°F). The difference between afternoon and evening temperatures is usually noticeable. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Härnösand in September
The area enjoys a balanced 144 hours of sunlight, ensuring it's neither too overcast nor too sunny.If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Härnösand.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sweden, check out our Härnösand's climate page.
Härnösand Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
15°C (59°F)
Chance of Rain
50%
Precipitation
67 mm (2.6 in)
Rainy days
15 days
Sunshine
144 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Härnösand typically drop from around 16°C (61°F) at the start of September to approximately 12°C (54°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 9°C (48°F).
Average temperatures in September
Historical weather for Härnösand in September
Browse day-by-day weather records for Härnösand spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Härnösand historical weather extremes in September
Our historical data for Härnösand spans 1976 to 2025, revealing these weather extremes.
- The hottest September day on record in Härnösand reached 27°C (81°F) (September 3, 1999).
- Härnösand experienced its chilliest September day on September 24, 1978, reaching only 5°C (41°F).
- Nighttime temperatures dropped to -8°C (18°F) on September 30, 1976, marking the coldest September night on record.
Best Places in Sweden in September
Find out more about the weather in Sweden and which places have the best travel conditions in this month. See all of Sweden in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Härnösand in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Härnösand 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 Sweden, check out our Härnösand's climate page.
See the full Härnösand climate overview or explore weather in Sweden.
