Weather in Zagreb for September 2026
In general, the average temperature in Zagreb at the beginning of September is 28.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.1 °C by the end of September.
Zagreb in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 84.9 mm.
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° /15° | 0 mm | 7 | |
| 2 Sept. |  Overcast | 31° /17° | 0.4 mm | 7 | |
| 3 Sept. |  Sunny | 28° /17° | 0.6 mm | 7 | |
| 4 Sept. | Partly cloudy | 29° /17° | 0 mm | 7 | |
| 5 Sept. |  Patchy rain possible | 30° /16° | 1 mm | 7 | |
| 6 Sept. | Patchy rain possible | 27° /15° | 0.5 mm | 6 | |
| 7 Sept. | Sunny | 28° /15° | 0 mm | 7 | |
| 8 Sept. | Sunny | 30° /15° | 0 mm | 7 | |
| 9 Sept. | Sunny | 25° /15° | 6.2 mm | 6 | |
| 10 Sept. | Sunny | 24° /15° | 6.3 mm | 6 | |
| 11 Sept. | Sunny | 27° /15° | 0.5 mm | 7 | |
| 12 Sept. | Sunny | 25° /13° | 3.7 mm | 6 | |
| 13 Sept. | Partly cloudy | 21° /13° | 8.8 mm | 5 | |
| 14 Sept. |  Cloudy | 21° /12° | 3.3 mm | 5 | |
| 15 Sept. |  Mist | 20° /12° | 4.7 mm | 5 | |
| 16 Sept. | Sunny | 21° /12° | 7 mm | 5 | |
| 17 Sept. | Sunny | 22° /12° | 1.5 mm | 5 | |
| 18 Sept. | Partly cloudy | 25° /13° | 0.8 mm | 6 | |
| 19 Sept. | Light rain shower | 24° /14° | 0.7 mm | 6 | |
| 20 Sept. | Partly cloudy | 25° /13° | 0.6 mm | 6 | |
| 21 Sept. | Sunny | 26° /13° | 1.1 mm | 6 | |
| 22 Sept. | Sunny | 26° /14° | 0.4 mm | 6 | |
| 23 Sept. | Light rain shower | 20° /13° | 9.7 mm | 5 | |
| 24 Sept. |  Light rain | 17° /13° | 10.5 mm | 4 | |
| 25 Sept. | Light rain shower | 18° /12° | 4.4 mm | 4 | |
| 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 | |
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Zagreb weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 30°/18° | 24°/14° | 19°/11° |
| Rainfall | 90 mm | 85 mm | 78 mm |
| Wind | 9.1 km/h | 10.2 km/h | 10.5 km/h |
| Humidity | 60% | 66% | 72% |
| Rainy days | 15 days | 16 days | 13 days |
| Dry days | 16 days | 14 days | 18 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
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
- Warm Clothing: Sweaters, hoodies, long pants
- 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
September rainfall patterns in Zagreb
UV exposure in Zagreb during September
Quick links
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.