Klagenfurt Weather in September

In Klagenfurt, September brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 9°C (48°F). Expect quite a bit of rainfall this month.

Rainfall in Klagenfurt in September

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 122 mm (4.8 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Klagenfurt in September

In September, Klagenfurt sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Klagenfurt in September

With about 188 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Klagenfurt in September

Average wind conditions reach 1 m/s (2 knots) in September. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.

Average water temperature in September

The water is 20°C (68°F) this month — a comfortable temperature that most swimmers enjoy. Warm enough to stay in without getting cold quickly.

Should you favor a climate that's both dry and comfortably warm, June, 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 Austria, check out our Klagenfurt's climate page.

Klagenfurt Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 19°C (66°F)  

Water Temperature 20°C (68°F)  

Chance of Rain 38%  

Precipitation 122 mm (4.8 in)  

Rainy days 12 days  

Humidity 55%  

Windspeed 1 m/s (2 knots)  

Sunshine 188 hours  

Percentage Sunshine 53%  

What to Wear in Klagenfurt 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. Expect water temperatures of around 20°C (68°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Klagenfurt in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

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 Austria, check out our Klagenfurt's climate page.

More climate data for Klagenfurt

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Klagenfurt climate overview or explore weather in Austria.