Celje Weather in September

Celje in September averages 21°C (70°F) during the day and 11°C (52°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Celje in September

On average, there are about 12 days with rain during this month, averaging 111 mm (4.4 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Celje in September

Temperatures in Celje in September top out at 21°C (70°F) and drop to 11°C (52°F) overnight. 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 Celje in September

Expect a lot of sunshine this month, with about 192 hours of sun. These sunny conditions add to the overall experience.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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• January
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• May
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• October
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For a detailed overview over the year and the best time to visit Slovenia, check out our Celje's climate page.

Celje Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 41%  

Precipitation 111 mm (4.4 in)  

Rainy days 12 days  

Sunshine 192 hours *  

Percentage Sunshine *  

* Data from: Maribor, Slovenia (46 KM, 28 Miles).

What to Wear in Celje in September

For Celje in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Celje 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

6/10

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 Slovenia, check out our Celje's climate page.

More climate data for Celje

Temperature Rainfall Sunshine

See the full Celje climate overview or explore weather in Slovenia.