Weather in Zagreb for September 2025
In general, the average temperature in Zagreb at the beginning of September is 29.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °C by the end of September.
Zagreb sees moderate rainfall in September, averaging 6 rainy days.
Is September a good time to visit Zagreb? check out the best time to travel to Zagreb page.
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Zagreb in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  31° | 3  30° | 4 29° | 5 29° | 6 29° | 7 29° |
| 8 31° | 9 26° | 10 27° | 11 28° | 12 24° | 13 20° | 14  19° |
| 15  17° | 16 21° | 17 22° | 18 25° | 19  23° | 20 23° | 21  25° |
| 22 24° | 23 21° | 24 18° | 25 19° | 26 25° | 27 26° | 28 22° |
| 29 21° | 30 20° |
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Temperatures trend during September in Zagreb
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 30° /16° | 0 mm | 8 | |
| 2 Sept. | Overcast | 31° /17° | 0 mm | 7 | |
| 3 Sept. | Sunny | 30° /18° | 0.2 mm | 8 | |
| 4 Sept. | Partly cloudy | 29° /17° | 0 mm | 7 | |
| 5 Sept. | Sunny | 29° /16° | 1.3 mm | 7 | |
| 6 Sept. | Sunny | 29° /15° | 0.7 mm | 7 | |
| 7 Sept. | Sunny | 29° /15° | 0 mm | 8 | |
| 8 Sept. | Sunny | 31° /15° | 0 mm | 8 | |
| 9 Sept. | Sunny | 26° /15° | 9.3 mm | 6 | |
| 10 Sept. | Sunny | 27° /14° | 0.2 mm | 7 | |
| 11 Sept. | Sunny | 28° /15° | 0 mm | 8 | |
| 12 Sept. | Sunny | 24° /13° | 5.4 mm | 6 | |
| 13 Sept. | Partly cloudy | 20° /12° | 12.9 mm | 5 | |
| 14 Sept. | Cloudy | 19° /11° | 2.4 mm | 5 | |
| 15 Sept. | Mist | 17° /11° | 7.1 mm | 4 | |
| 16 Sept. | Sunny | 21° /12° | 5.3 mm | 5 | |
| 17 Sept. | Sunny | 22° /13° | 1.7 mm | 6 | |
| 18 Sept. | Partly cloudy | 25° /13° | 1.2 mm | 6 | |
| 19 Sept. | Light rain shower | 23° /14° | 1.1 mm | 5 | |
| 20 Sept. | Partly cloudy | 23° /13° | 1 mm | 6 | |
| 21 Sept. | Light rain | 25° /13° | 1.7 mm | 6 | |
| 22 Sept. | Patchy light drizzle | 24° /13° | 0.6 mm | 6 | |
| 23 Sept. | Light rain shower | 21° /12° | 13.8 mm | 5 | |
| 24 Sept. | Light rain | 18° /13° | 14.5 mm | 4 | |
| 25 Sept. | Patchy rain possible | 19° /13° | 0.7 mm | 5 | |
| 26 Sept. | Mist | 25° /13° | 0 mm | 6 | |
| 27 Sept. | Sunny | 26° /16° | 0.1 mm | 7 | |
| 28 Sept. | Sunny | 22° /12° | 2.8 mm | 6 | |
| 29 Sept. | Sunny | 21° /10° | 0.9 mm | 6 | |
| 30 Sept. | Partly cloudy | 20° /9° | 0 mm | 5 | |
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Guide for Zagreb in September
In September, Zagreb, Croatia experiences a transition from the warm summer weather to the cooler temperatures of autumn. At the beginning of the month, Zagreb typically enjoys mild and pleasant weather with average temperatures around 20°.
The days are still relatively long, providing ample opportunity for outdoor activities and sightseeing. However, as the month progresses, the weather gradually becomes cooler. By the end of September, temperatures in Zagreb tend to drop to around 15°, signaling the arrival of autumn.
Visitors can expect to see the city's lush greenery transform into a beautiful display of autumn colors as the leaves change.
Additionally, September in Zagreb generally sees a decrease in precipitation compared to the summer months, making it a great time to explore the city and its surrounding areas.
The weather is often characterized by clear skies and comfortable humidity levels, creating ideal conditions for outdoor excursions and cultural experiences.
Overall, September offers a delightful blend of late summer warmth and the beginnings of autumn in Zagreb, making it a wonderful time to visit this charming European city.
Zagreb in September - FAQ
What to pack to Zagreb in September?
As you prepare for your trip to Zagreb 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 Zagreb, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- 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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