Weather in Graz for September 2025
In general, the average temperature in Graz at the beginning of September is 27.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.7 °C by the end of September.
Graz sees moderate rainfall in September, averaging 6 rainy days.
Is September a good time to visit Graz? check out the best time to travel to Graz page.
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Graz in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  29° | 3  29° | 4 28° | 5 27° | 6 26° | 7 27° |
| 8 27° | 9 23° | 10 25° | 11 26° | 12 21° | 13  19° | 14  15° |
| 15  17° | 16  19° | 17 20° | 18 21° | 19 20° | 20 21° | 21 23° |
| 22 22° | 23 19° | 24  19° | 25 20° | 26 23° | 27 20° | 28 18° |
| 29 20° | 30 18° |
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Temperatures trend during September in Graz
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 28° /15° | 0 mm | 7 | |
| 2 Sept. | Sunny | 29° /15° | 0 mm | 8 | |
| 3 Sept. | Patchy rain possible | 29° /17° | 0.2 mm | 7 | |
| 4 Sept. | Partly cloudy | 28° /15° | 0 mm | 7 | |
| 5 Sept. | Sunny | 27° /15° | 0.3 mm | 7 | |
| 6 Sept. | Sunny | 26° /14° | 2.5 mm | 7 | |
| 7 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /14° | 0.3 mm | 7 | |
| 9 Sept. | Sunny | 23° /13° | 12.7 mm | 6 | |
| 10 Sept. | Sunny | 25° /12° | 0.1 mm | 6 | |
| 11 Sept. | Sunny | 26° /13° | 0.2 mm | 6 | |
| 12 Sept. | Sunny | 21° /11° | 15 mm | 5 | |
| 13 Sept. | Thundery outbreaks possible | 19° /12° | 2.4 mm | 4 | |
| 14 Sept. | Moderate rain | 15° /10° | 11.3 mm | 4 | |
| 15 Sept. | Mist | 17° /10° | 0.7 mm | 4 | |
| 16 Sept. | Cloudy | 19° /11° | 3.3 mm | 5 | |
| 17 Sept. | Sunny | 20° /10° | 3.2 mm | 5 | |
| 18 Sept. | Partly cloudy | 21° /11° | 3.5 mm | 6 | |
| 19 Sept. | Light rain shower | 20° /12° | 4.5 mm | 5 | |
| 20 Sept. | Patchy rain possible | 21° /11° | 0.6 mm | 5 | |
| 21 Sept. | Partly cloudy | 23° /12° | 0 mm | 6 | |
| 22 Sept. | Patchy rain possible | 22° /12° | 0.4 mm | 6 | |
| 23 Sept. | Light rain shower | 19° /11° | 1 mm | 5 | |
| 24 Sept. | Overcast | 19° /12° | 2.8 mm | 4 | |
| 25 Sept. | Overcast | 20° /11° | 0.4 mm | 5 | |
| 26 Sept. | Sunny | 23° /11° | 0 mm | 6 | |
| 27 Sept. | Sunny | 20° /13° | 1.9 mm | 5 | |
| 28 Sept. | Sunny | 18° /10° | 5.2 mm | 5 | |
| 29 Sept. | Sunny | 20° /9° | 0 mm | 5 | |
| 30 Sept. | Light rain shower | 18° /9° | 1.9 mm | 4 | |
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Guide for Graz in September
In Graz, Austria, September marks the transition from summer to autumn, bringing about noticeable changes in the weather. At the beginning of the month, the weather in Graz is generally pleasant, with mild temperatures and decreasing chances of rainfall.
The average temperature at the start of September hovers around 18°, making it an ideal time to explore the city's outdoor attractions and enjoy al fresco dining.
As the month progresses, the weather gradually begins to cool down, with average temperatures dropping to around 14° by the end of September. While the days remain relatively mild, the evenings start to become cooler, signaling the onset of autumn.
Additionally, there is a slight increase in the possibility of rainfall towards the end of the month, so it's advisable for visitors to pack an umbrella or light rain jacket.
Overall, September in Graz offers a pleasant transition from summer to autumn, allowing travelers to experience the city's charm amidst comfortable temperatures and beautiful scenery.
Whether strolling through the historic streets or indulging in the local culinary delights, visitors can enjoy the best of Graz's offerings while embracing the changing weather patterns.
Graz in September - FAQ
What to pack to Graz in September?
As you prepare for your trip to Graz 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 Graz, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- 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 Graz
UV exposure in Graz during September
Quick links
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