Kostanjevica na Krki Weather in September

With daytime temperatures of 23°C (73°F) and nighttime lows of 12°C (54°F), September in Kostanjevica na Krki brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Kostanjevica na Krki in September

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. You can expect rain on around 13 days based on historical patterns, with 117 mm (4.6 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Kostanjevica na Krki in September

Daytime highs in Kostanjevica na Krki in September reach 23°C (73°F), with nights around 12°C (54°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 12°C (54°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 Kostanjevica na Krki in September

Enjoy a sunny month with about 190 hours of sunshine, the clear skies make Kostanjevica na Krki even more beautiful.

If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Kostanjevica na Krki.

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

Kostanjevica na Krki Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 42%  

Precipitation 117 mm (4.6 in)  

Rainy days 13 days  

Humidity 77% *  

Sunshine 190 hours *  

Percentage Sunshine 54% *  

* Data from: Zagreb, Croatia (42 KM, 26 Miles).

What to Wear in Kostanjevica na Krki 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Kostanjevica na Krki 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 Kostanjevica na Krki's climate page.

More climate data for Kostanjevica na Krki

Temperature Rainfall Sunshine Humidity

See the full Kostanjevica na Krki climate overview or explore weather in Slovenia.