Karlsten Weather in September

September in Karlsten brings moderate temperatures around 12°C (54°F) during the day, dropping to 4°C (39°F) at night, with quite a bit of rainfall expected, averaging around 76 mm (3 in) for the month.

Rainfall in Karlsten in September

Looking at the last 30 years, the data shows about 18 days with rain, averaging 76 mm (3 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Karlsten in September

Temperatures in Karlsten in September top out at 12°C (54°F) and drop to 4°C (39°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

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.

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• January
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For a detailed overview over the year and the best time to visit Sweden, check out our Karlsten's climate page.

Karlsten Temperature in September

Min Temperature 4°C (39°F)  

Max Temperature 12°C (54°F)  

Chance of Rain 60%  

Precipitation 76 mm (3 in)  

Rainy days 18 days  

What to Wear in Karlsten 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.

What To Do in Karlsten in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

6/10

Walking

6/10

Barbeque

4/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sweden, check out our Karlsten's climate page.

More climate data for Karlsten

Temperature Rainfall

See the full Karlsten climate overview or explore weather in Sweden.