Porjus Weather in September
Porjus in September averages 12°C (54°F) during the day and 4°C (39°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Porjus in September
Historically, approximately 15 days this month are expected to have rain, averaging 74 mm (2.9 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 Porjus in September
Temperatures in Porjus in September top out at 12°C (54°F) and drop to 4°C (39°F) overnight. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of 4°C (39°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, July 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 Sweden, check out our Porjus's climate page.
Porjus Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
12°C (54°F)
Chance of Rain
50%
Precipitation
74 mm (2.9 in)
Rainy days
15 days
Humidity
77% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Porjus typically drop from around 13°C (55°F) at the start of September to approximately 7°C (45°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 5°C (41°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 Porjus in September
Browse day-by-day weather records for Porjus spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Porjus historical weather extremes in September
According to our 49 years of weather records for Porjus, the following extremes were recorded between 1976 and 2025.
- The warmest day in September was on September 9, 2023, with a maximum of 23°C (73°F).
- The lowest daytime temperature in September was 0°C (32°F), recorded on September 29, 2006.
- The coldest night in September in Porjus was on September 29, 2018, with a minimum of -9°C (16°F).
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 Porjus in September
Pack for changing conditions in Porjus 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. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Porjus 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 Porjus's climate page.
See the full Porjus climate overview or explore weather in Sweden.
