Trebnje Weather in September

September in Trebnje averages 22°C (72°F) during the day and 11°C (52°F) at night. It is the wettest month of the year, with 126 mm (5 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Trebnje in September

It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. On average, there are about 13 days with rain during this month, averaging 126 mm (5 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Trebnje in September

In September, expect pleasant temperatures in Trebnje, with highs of 22°C (72°F) and lows of 11°C (52°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. 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 Trebnje in September

The month brings about 182 hours of sunlight, offering a comfortable mix of sun and overcast.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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

Trebnje Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 42%  

Precipitation 126 mm (5 in)  

Rainy days 13 days  

Humidity 72% *  

Sunshine 182 hours *  

Percentage Sunshine *  

* Data from: Ljubljana, Slovenia (41 KM, 26 Miles).

What to Wear in Trebnje 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Trebnje 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 Trebnje's climate page.

More climate data for Trebnje

Temperature Rainfall Sunshine Humidity

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