Weather in Zagreb for September 2026
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Until now, September 2026 in Zagreb has been nearly identical to the historical average, with a temperature of 28.7 °C (showing only a slight deviation of 0.3 °C).
The forecast for the next days in Zagreb predicts temperatures to be around 27 °C, close to the historical average.
In general, the average temperature in Zagreb at the beginning of September is 29.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.7 °C by the end of September.
The climate of Zagreb in September is notably wet, with an average of 11 rainy days, and a total of 77 mm of precipitation.
Is September a good time to visit Zagreb? check out the best time to travel to Zagreb page.
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Zagreb Weather September
Temperatures trend during September in Zagreb
September weather in Zagreb day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 29° /16° | 0 mm | 7 | |
| 2 Sept. |  Sunny | 31° /17° | 0.6 mm | 6 | |
| 3 Sept. | Sunny | 29° /18° | 0.4 mm | 7 | |
| 4 Sept. | Partly cloudy | 30° /17° | 0 mm | 7 | |
| 5 Sept. | Sunny | 30° /17° | 0.8 mm | 7 | |
| 6 Sept. | Sunny | 28° /16° | 0.4 mm | 7 | |
| 7 Sept. | Sunny | 29° /15° | 0 mm | 7 | |
| 8 Sept. | Sunny | 31° /16° | 0 mm | 7 | |
| 9 Sept. | Sunny | 27° /16° | 4.9 mm | 5 | |
| 10 Sept. | Sunny | 24° /15° | 8.4 mm | 5 | |
| 11 Sept. | Sunny | 25° /14° | 3.3 mm | 6 | |
| 12 Sept. | Sunny | 25° /13° | 3.7 mm | 6 | |
| 13 Sept. | Sunny | 26° /15° | 0 mm | 5.1 | |
| 14 Sept. |  Overcast | 26° /18° | 0 mm | 4 | |
| 15 Sept. | Sunny | 27° /17° | 0 mm | 7 | |
| 16 Sept. | Sunny | 29° /16° | 0 mm | 7 | |
| 17 Sept. | Sunny | 25° /16° | 0 mm | 6 | |
| 18 Sept. | Overcast | 25° /16° | 0 mm | 5 | |
| 19 Sept. | Overcast | 26° /17° | 0 mm | 7 | |
| 20 Sept. | Sunny | 29° /18° | 0 mm | 7 | |
| 21 Sept. | Overcast | 31° /19° | 0 mm | 7 | |
| 22 Sept. | Sunny | 30° /18° | 0 mm | 7 | |
| 23 Sept. | Sunny | 28° /17° | 0 mm | 7 | |
| 24 Sept. | Sunny | 26° /16° | 0 mm | 7 | |
| 25 Sept. | Sunny | 27° /16° | 0 mm | 7 | |
| 26 Sept. |  Mist | 23° /12° | 0.7 mm | 5 | |
| 27 Sept. | Sunny | 24° /14° | 0.1 mm | 6 | |
| 28 Sept. | Sunny | 21° /12° | 1.9 mm | 5 | |
| 29 Sept. | Sunny | 20° /10° | 0.6 mm | 5 | |
| 30 Sept. | Partly cloudy | 18° /9° | 0.9 mm | 4 | |
| Next | |||||
Zagreb weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny |  Patchy rain possible |
| Temperatures | 30°/17° | 24°/14° | 18°/10° |
| Rainfall | 73 mm | 77 mm | 72 mm |
| Wind | 9.2 km/h | 9.5 km/h | 10.8 km/h |
| Humidity | 58% | 67% | 72% |
| Rainy days | 10 days | 11 days | 9 days |
| Dry days | 21 days | 19 days | 23 days |
Planning a trip to Zagreb? Discover the best time to visit
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
Is September a good time to visit Zagreb?
What are the expected maximum and minimum temperatures in Zagreb during September?
How much rainfall should be expected in Zagreb during September?
What are the typical wind conditions in Zagreb during September?
September rainfall patterns in Zagreb
UV exposure in Zagreb during September
What to pack to Zagreb in September?
Mild & changeable · highs around 24 °C, frequent showers
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
👟 Footwear
🎒 Accessories
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Where is Zagreb?Get accurate weather forecasts for Zagreb, located at latitude 45.814 and longitude 15.978. Stay updated with localized weather information tailored for Zagreb.