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Weather in Karlovac for September 2025

Your guide to Karlovac weather in September - trends and predictions
  • In general, the average temperature in Karlovac at the beginning of September is 29.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °C by the end of September.

  • Karlovac sees moderate rainfall in September, averaging 7 rainy days.

  • Is September a good time to visit Karlovac? check out the best time to travel to Karlovac page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
23
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/13°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Karlovac in September average weather

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Temperatures trend during September in Karlovac

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
30° /14° 0 mm 7
2 Sept. Overcast
Overcast
31° /14° 0 mm 7
3 Sept. Sunny
Sunny
31° /16° 0.3 mm 8
4 Sept. Partly cloudy
Partly cloudy
29° /14° 0.1 mm 7
5 Sept. Partly cloudy
Partly cloudy
29° /13° 1 mm 7
6 Sept. Sunny
Sunny
29° /13° 1.1 mm 7
7 Sept. Sunny
Sunny
30° /13° 0 mm 8
8 Sept. Sunny
Sunny
30° /13° 0 mm 8
9 Sept. Sunny
Sunny
27° /13° 11.9 mm 6
10 Sept. Sunny
Sunny
27° /12° 0 mm 6
11 Sept. Sunny
Sunny
28° /12° 0 mm 8
12 Sept. Sunny
Sunny
25° /11° 13.3 mm 6
13 Sept. Partly cloudy
Partly cloudy
20° /10° 14.9 mm 5
14 Sept. Thundery outbreaks possible
Thundery outbreaks possible
22° /9° 2 mm 5
15 Sept. Mist
Mist
18° /11° 3.3 mm 4
16 Sept. Sunny
Sunny
21° /10° 1.8 mm 6
17 Sept. Partly cloudy
Partly cloudy
21° /11° 2.4 mm 5
18 Sept. Mist
Mist
25° /11° 1 mm 6
19 Sept. Light rain shower
Light rain shower
22° /12° 3.5 mm 5
20 Sept. Cloudy
Cloudy
23° /12° 1 mm 5
21 Sept. Light rain shower
Light rain shower
25° /12° 1.8 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
25° /12° 1.4 mm 6
23 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
21° /11° 15 mm 6
24 Sept. Light rain
Light rain
18° /12° 24.9 mm 4
25 Sept. Light drizzle
Light drizzle
19° /11° 0.4 mm 4
26 Sept. Fog
Fog
24° /11° 0 mm 6
27 Sept. Mist
Mist
27° /14° 0 mm 6
28 Sept. Sunny
Sunny
21° /10° 5.7 mm 5
29 Sept. Sunny
Sunny
21° /7° 2.7 mm 5
30 Sept. Partly cloudy
Partly cloudy
21° /7° 0 mm 6
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Important Notice
Our weather forecast for Karlovac in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Karlovac forecast closer to your planned date for the most up-to-date weather information.

Karlovac in September - FAQ

What are the expected maximum and minimum temperatures in Karlovac during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Karlovac during September?
Moderate rainfall is anticipated in Karlovac during September, with a total of 73.2 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Karlovac during September?
The average wind speed in Karlovac during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Karlovac in September?

As you prepare for your trip to Karlovac in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Karlovac, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
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Location coordinates Where is Karlovac?

Get accurate weather forecasts for Karlovac, located at latitude 45.492 and longitude 15.55. Stay updated with localized weather information tailored for Karlovac.

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