När Weather in September

In När, September brings moderate daytime temperatures around 18°C (64°F), with nights cooling to 11°C (52°F). Some rainfall is to be expected.

Rainfall in När in September

You can expect rain on roughly 14 days based on historical data, averaging 53 mm (2.1 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in När in September

In September, expect moderate temperatures in När, with highs of 18°C (64°F) and lows of 11°C (52°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in När in September

The days are predominantly sunny, with an estimated total of around 202 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

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

När Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 48%  

Precipitation 53 mm (2.1 in)  

Rainy days 14 days  

Sunshine 202 hours *  

Percentage Sunshine *  

* Data from: Visby, Sweden (46 KM, 28 Miles).

What to Wear in När 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in När in September

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

Cycling

6/10

Walking

6/10

Camping

8/10

Outdoor sports

10/10

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 När's climate page.

More climate data for När

Temperature Rainfall Sunshine

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