Weather in Grad Trogir for September 2026
Yellow Thunderstorm Warning - See hour by hour.
So far, September 2026 in Grad Trogir is slightly warmer than the historical average by 1 °C.
The forecast for the next days in Grad Trogir predicts temperatures to be around 22 °C, close to the historical average.
In general, the average temperature in Grad Trogir at the beginning of September is 27.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.3 °C by the end of September.
The climate of Grad Trogir in September is notably wet, with an average of 13 rainy days, and a total of 87.4 mm of precipitation.
Is September a good time to visit Grad Trogir? check out the best time to travel to Grad Trogir page.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
Grad Trogir Weather September
Temperatures trend during September in Grad Trogir
September weather in Grad Trogir day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 27° /21° | 0 mm | 7 | |
| 2 Sept. | Sunny | 28° /21° | 0.1 mm | 7 | |
| 3 Sept. | Sunny | 28° /21° | 0.4 mm | 7 | |
| 4 Sept. | Sunny | 27° /21° | 0.1 mm | 7 | |
| 5 Sept. | Sunny | 27° /21° | 1.9 mm | 7 | |
| 6 Sept. | Sunny | 28° /21° | 3.2 mm | 7 | |
| 7 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /21° | 0.1 mm | 6 | |
| 9 Sept. | Sunny | 26° /20° | 7.2 mm | 6 | |
| 10 Sept. | Sunny | 26° /20° | 2.3 mm | 5 | |
| 11 Sept. | Sunny | 26° /19° | 9.4 mm | 6 | |
| 12 Sept. | Sunny | 25° /19° | 3.1 mm | 6 | |
| 13 Sept. |  Partly cloudy | 25° /17° | 4.8 mm | 6 | |
| 14 Sept. | Partly cloudy | 23° /17° | 0.3 mm | 5 | |
| 15 Sept. | Partly cloudy | 24° /17° | 0.1 mm | 6 | |
| 16 Sept. | Sunny | 24° /17° | 0.3 mm | 6 | |
| 17 Sept. | Partly cloudy | 24° /18° | 0.4 mm | 6 | |
| 18 Sept. |  Patchy rain possible | 24° /21° | 4.3 mm | 5.3 | |
| 19 Sept. | Sunny | 25° /22° | 0.3 mm | 4.4 | |
| 20 Sept. | Sunny | 26° /22° | 0 mm | 5.5 | |
| 21 Sept. | Sunny | 26° /22° | 0 mm | 7 | |
| 22 Sept. | Sunny | 24° /19° | 0 mm | 6 | |
| 23 Sept. | Sunny | 22° /17° | 0 mm | 6 | |
| 24 Sept. | Sunny | 23° /16° | 0 mm | 6 | |
| 25 Sept. | Sunny | 23° /20° | 0 mm | 6 | |
| 26 Sept. |  Overcast | 20° /13° | 0 mm | 5 | |
| 27 Sept. | Sunny | 17° /12° | 0 mm | 5 | |
| 28 Sept. | Sunny | 16° /10° | 0 mm | 5 | |
| 29 Sept. | Sunny | 19° /12° | 0 mm | 5 | |
| 30 Sept. | Overcast | 17° /13° | 16.7 mm | 4 | |
| Next | |||||
Grad Trogir weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 28°/21° | 24°/18° | 20°/15° |
| Rainfall | 70 mm | 87 mm | 77 mm |
| Wind | 17.2 km/h | 18.3 km/h | 20.1 km/h |
| Humidity | 55% | 61% | 66% |
| Rainy days | 12 days | 13 days | 15 days |
| Dry days | 19 days | 17 days | 16 days |
Planning a trip to Grad Trogir? Discover the best time to visit
Grad Trogir in September - FAQ
What are the expected maximum and minimum temperatures in Grad Trogir during September?
How much rainfall should be expected in Grad Trogir during September?
What are the typical wind conditions in Grad Trogir during September?
Grad Trogir water temperatures in September
The average water temperature of the Adriatic Sea near Grad Trogir in September is 24.2 °C. At the beginning of September temperatures are around 24.2 °C; by the end of the month they stay fairly steady and reach 24.5 °C.
- What is the water temperature in Grad Trogir in September?
- The average water temperature in Grad Trogir in September is 24.2 °C.
- Can you swim in Grad Trogir in September?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
September rainfall patterns in Grad Trogir
UV exposure in Grad Trogir during September
What to pack to Grad Trogir in September?
Mild · highs around 24 °C, frequent showers
As you prepare for your trip to Grad Trogir 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 Grad Trogir, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
Quick links
Where is Grad Trogir?Get accurate weather forecasts for Grad Trogir, located at latitude 43.513 and longitude 16.252. Stay updated with localized weather information tailored for Grad Trogir.