Karlovac Weather in September

September in Karlovac averages 23°C (73°F) during the day and 12°C (54°F) at night. It is the wettest month of the year, with 109 mm (4.3 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Karlovac in September

This month sees the most rain, so carrying an umbrella will ensure you stay dry. Historically, September sees about 12 days of rain, with a monthly average of 109 mm (4.3 in). 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 Karlovac in September

Karlovac in September gets highs of 23°C (73°F) during the day and drops to 12°C (54°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Karlovac in September

The city usually sees around 190 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you prefer dry days with pleasant temperatures, June, July and August typically offer the best 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 Croatia, check out our Karlovac's climate page.

Karlovac Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 41%  

Precipitation 109 mm (4.3 in)  

Rainy days 12 days  

Humidity 77% *  

Sunshine 190 hours *  

Percentage Sunshine 54% *  

* Data from: Zagreb, Croatia (47 KM, 29 Miles).

What to Wear in Karlovac 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Karlovac in September

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

Swimming

7/10

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 Croatia, check out our Karlovac's climate page.

More climate data for Karlovac

Temperature Rainfall Sunshine Humidity

See the full Karlovac climate overview or explore weather in Croatia.