Raahe Weather in September
September in Raahe sees daytime temperatures around 14°C (57°F) and lows of 8°C (46°F) at night. With around 68 mm (2.7 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Raahe in September
This month experiences about 16 days of rain according to historical data, averaging 68 mm (2.7 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Raahe in September
Daytime temperatures in Raahe reach 14°C (57°F) in September, dropping to 8°C (46°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Raahe in September
The area enjoys a moderate level of sunlight, with around 135 hours. It's a good balance between sunny and cloudy days.If you prefer enjoying temperate temperatures and rain-free days, July typically offers 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 Finland, check out our Raahe's climate page.
Raahe Temperature in September
Min Temperature
8°C (46°F)
Max Temperature
14°C (57°F)
Chance of Rain
54%
Precipitation
68 mm (2.7 in)
Rainy days
16 days
Humidity
82% *
Sunshine
135 hours *
Percentage Sunshine
29% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Raahe 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 4°C (39°F) to 9°C (48°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 Raahe in September
Browse day-by-day weather records for Raahe spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Raahe historical weather extremes in September
Our historical data for Raahe spans 1976 to 2025, revealing these weather extremes.
- The hottest September day on record in Raahe reached 24°C (75°F) (September 9, 2024).
- On September 27, 1986, Raahe saw its coldest September day with temperatures maxing out at 2°C (36°F).
- The lowest overnight temperature recorded in September was -7°C (19°F) (September 30, 1978).
Best Places in Finland in September
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in September →
perfect weather
pleasant
tolerable
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What to Wear in Raahe 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Raahe 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 Finland, check out our Raahe's climate page.
Temperature Rainfall Sunshine Humidity
See the full Raahe climate overview or explore weather in Finland.
