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Weather in Split for September 2025

Your guide to Split weather in September - trends and predictions
  • In general, the average temperature in Split at the beginning of September is 27.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.1 °C by the end of September.

  • With an average of 3 rainy days, Split experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.

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

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/19°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
58 %
Avg humidity

Split in September average weather

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Temperatures trend during September in Split

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. Sunny
Sunny
28° /20° 0 mm 7
2 Sept. Partly cloudy
Partly cloudy
28° /20° 0 mm 7
3 Sept. Sunny
Sunny
28° /21° 0 mm 7
4 Sept. Partly cloudy
Partly cloudy
26° /20° 0.2 mm 7
5 Sept. Sunny
Sunny
27° /19° 3.8 mm 7
6 Sept. Sunny
Sunny
28° /19° 6.3 mm 7
7 Sept. Sunny
Sunny
27° /20° 0 mm 7
8 Sept. Sunny
Sunny
27° /21° 0.2 mm 7
9 Sept. Sunny
Sunny
26° /20° 13.3 mm 7
10 Sept. Sunny
Sunny
26° /18° 0.1 mm 7
11 Sept. Sunny
Sunny
25° /18° 0 mm 7
12 Sept. Sunny
Sunny
24° /19° 6.3 mm 6
13 Sept. Partly cloudy
Partly cloudy
24° /16° 9.6 mm 6
14 Sept. Partly cloudy
Partly cloudy
21° /16° 0.3 mm 6
15 Sept. Partly cloudy
Partly cloudy
22° /16° 0.1 mm 6
16 Sept. Sunny
Sunny
22° /15° 0 mm 6
17 Sept. Partly cloudy
Partly cloudy
24° /18° 0.2 mm 6
18 Sept. Sunny
Sunny
24° /18° 1.4 mm 6
19 Sept. Patchy rain possible
Patchy rain possible
23° /18° 12.4 mm 5
20 Sept. Partly cloudy
Partly cloudy
24° /18° 0.3 mm 6
21 Sept. Light drizzle
Light drizzle
23° /17° 3.3 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
23° /18° 0.1 mm 6
23 Sept. Torrential rain shower
Torrential rain shower
22° /16° 29.6 mm 6
24 Sept. Thundery outbreaks possible
Thundery outbreaks possible
22° /16° 4.4 mm 5
25 Sept. Sunny
Sunny
23° /15° 6.3 mm 6
26 Sept. Sunny
Sunny
25° /17° 0 mm 6
27 Sept. Sunny
Sunny
25° /19° 0 mm 7
28 Sept. Sunny
Sunny
24° /17° 2.5 mm 6
29 Sept. Sunny
Sunny
21° /15° 0 mm 5
30 Sept. Partly cloudy
Partly cloudy
22° /14° 0 mm 6
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Important Notice
Our weather forecast for Split 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 Split forecast closer to your planned date for the most up-to-date weather information.

Guide for Split in September

In September, Split, Croatia experiences pleasant weather with warm temperatures and plenty of sunshine. At the beginning of the month, the average temperature hovers around 25°, making it ideal for outdoor activities and sightseeing.

The sea temperature remains inviting for swimming and water sports, typically around 23°. The city enjoys approximately 9 hours of sunshine per day, providing ample opportunity to explore the stunning coastal landscapes and historical sites.

As the month progresses, the temperatures gradually begin to decrease, with average highs of around 23° and cooler evenings with lows of about 17°. Despite this slight drop in temperature, the weather remains comfortable for outdoor excursions and al fresco dining.

The sea temperature also begins to decrease slightly, but it still remains pleasant for swimming and other water activities.

Overall, September in Split offers a delightful transition from the hot summer months to the cooler autumn season. Visitors can expect enjoyable weather conditions for exploring the city's attractions, indulging in local cuisine, and soaking up the Mediterranean ambiance along the Adriatic coast.

Split in September - FAQ

Is September a good time to visit Split?
Yes, September is a good time to traveling to Split, read more about the best time to visit Split.
What are the expected maximum and minimum temperatures in Split during September?
During September, expect a variety of temperatures with highs around 26° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Split during September?
Moderate rainfall is anticipated in Split during September, with a total of 66.7 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Split during September?
The average wind speed in Split during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Split in September?

As you prepare for your trip to Split 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 Split, 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
    • 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 Split?

Get accurate weather forecasts for Split, located at latitude 43.509 and longitude 16.439. Stay updated with localized weather information tailored for Split.

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