Sundsandvik Weather in September
Thinking of visiting Sundsandvik in September? Expect moderate temperatures reaching 17°C (63°F) during the day, dropping to 10°C (50°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Sundsandvik in September
Past climate data indicates that roughly 14 days will see rain, totalling around 90 mm (3.5 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 Sundsandvik in September
September in Sundsandvik sees highs of 17°C (63°F) and lows of 10°C (50°F) overnight. Conditions are often most pleasant around the middle of the day. Nights fall to 10°C (50°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 Sundsandvik in September
The month experiences a moderate amount of sunlight, with 171 hours of sunshine. This provides a nice balance between sunshine and clouds.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Sundsandvik.
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 Sundsandvik's climate page.
Sundsandvik Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
17°C (63°F)
Chance of Rain
46%
Precipitation
90 mm (3.5 in)
Rainy days
14 days
Humidity
76% *
Sunshine
171 hours *
Percentage Sunshine
46% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sundsandvik typically drop from around 17°C (63°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°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 Sundsandvik in September
Browse day-by-day weather records for Sundsandvik spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sundsandvik historical weather extremes in September
The extremes listed below come from historical weather data collected in Sundsandvik from 1976 through 2025.
- The warmest day in September was on September 1, 1983, with a maximum of 26°C (79°F).
- Sundsandvik experienced its chilliest September day on September 16, 1993, reaching only 7°C (45°F).
- The lowest overnight temperature recorded in September was -2°C (28°F) (September 27, 1986).
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
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What to Wear in Sundsandvik in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Sundsandvik 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 Sundsandvik's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sundsandvik climate overview or explore weather in Sweden.
