Strömstad Weather in September
September in Strömstad brings moderate temperatures, with highs of 17°C (63°F) and nights dropping to 11°C (52°F). Rainfall is on the higher side this month, averaging around 97 mm (3.8 in), so keep a rain jacket handy.
Rainfall in Strömstad in September
You can expect rain on roughly 16 days based on historical data, averaging 97 mm (3.8 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Strömstad in September
Strömstad in September gets highs of 17°C (63°F) during the day and drops to 11°C (52°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Strömstad.
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 Strömstad's climate page.
Strömstad Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
17°C (63°F)
Chance of Rain
53%
Precipitation
97 mm (3.8 in)
Rainy days
16 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Strömstad typically drop from around 17°C (63°F) at the start of September to approximately 13°C (55°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 Strömstad in September
Browse day-by-day weather records for Strömstad spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Strömstad historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Strömstad.
- The hottest September day on record in Strömstad reached 26°C (79°F) (September 5, 2024).
- The coldest September day was on September 30, 1994, with a maximum of 7°C (45°F).
- The coldest night in September in Strömstad was on September 18, 1993, with a minimum of -4°C (25°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 Strömstad in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Strömstad 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 Strömstad's climate page.
See the full Strömstad climate overview or explore weather in Sweden.
