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Lysekil Weather in September
With daytime temperatures of 17°C (63°F) and nighttime lows of 11°C (52°F), September in Lysekil brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 93 mm (3.7 in) falls on average.
Rainfall in Lysekil in September
Rain is expected on roughly 13 days, totalling around 93 mm (3.7 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Lysekil in September
Daytime temperatures in Lysekil reach 17°C (63°F) in September, dropping to 11°C (52°F) at night. Conditions are often most pleasant around the middle of the day. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Lysekil in September
The month experiences a moderate amount of sunlight, with 171 hours of sunshine. This provides a nice balance between sunshine and clouds.Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Lysekil Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
17°C (63°F)
Chance of Rain
44%
Precipitation
93 mm (3.7 in)
Rainy days
13 days
Humidity
76% *
Sunshine
171 hours *
Percentage Sunshine
46% *
* Data from: Gothenburg, Sweden (32 KM, 20 Miles).
Lysekil Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lysekil - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lysekil 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 8°C (46°F) to 12°C (54°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 records for Lysekil in September
Browse day-by-day weather records for Lysekil spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lysekil historical weather extremes in September
Our historical data for Lysekil spans 1976 to 2026, revealing these weather extremes.
- The hottest September day on record in Lysekil reached 25°C (77°F) (September 5, 2024).
- The lowest daytime temperature in September was 8°C (46°F), recorded on September 16, 1993.
- The lowest overnight temperature recorded in September was -2°C (28°F) (September 21, 1996).
- The heaviest September precipitation occurred on September 22, 2023, when 55 mm (2.2 in) of precipitation fell.
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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Lysekil 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. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Lysekil in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Barbeque6/10 -
Camping8/10 -
Outdoor sports9/10
Lysekil 3-Day Forecast
More climate data for Lysekil
Temperature Rainfall Sunshine Humidity
See the full Lysekil climate overview or explore weather in Sweden.
Popular in September
Where to go in September - average daytime high across popular destinations.
Lund
18°C (64°F) Malmö19°C (66°F) Gothenburg
18°C (64°F) Karlskrona17°C (63°F) Falkenberg18°C (64°F) Simrishamn17°C (63°F) Stockholm17°C (63°F) Visby
17°C (63°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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