Weather in Opatija for September 2027
In general, the average temperature in Opatija at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.9 °C by the end of September.
The climate of Opatija in September is notably wet, with an average of 12 rainy days, and a total of 170.3 mm of precipitation.
Is September a good time to visit Opatija? check out the best time to travel to Opatija page.
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Opatija Weather September
Temperatures trend during September in Opatija
September weather in Opatija day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 26° /19° | 0.2 mm | 7 | |
| 2 Sept. | Sunny | 27° /19° | 0.9 mm | 6 | |
| 3 Sept. |  Patchy rain possible | 27° /19° | 0.2 mm | 6 | |
| 4 Sept. | Patchy rain possible | 27° /19° | 0.3 mm | 6 | |
| 5 Sept. |  Light rain | 25° /20° | 3.4 mm | 6 | |
| 6 Sept. | Sunny | 25° /17° | 0.7 mm | 6 | |
| 7 Sept. | Sunny | 25° /18° | 0 mm | 6 | |
| 8 Sept. |  Cloudy | 25° /19° | 0.9 mm | 6 | |
| 9 Sept. |  Moderate rain | 23° /17° | 13.9 mm | 4 | |
| 10 Sept. |  Heavy rain | 21° /15° | 38.4 mm | 4 | |
| 11 Sept. | Light rain | 21° /15° | 9.3 mm | 4 | |
| 12 Sept. | Moderate rain | 21° /13° | 20.4 mm | 5 | |
| 13 Sept. | Moderate rain | 20° /13° | 13.3 mm | 4 | |
| 14 Sept. |  Moderate rain at times | 20° /14° | 9.2 mm | 4 | |
| 15 Sept. | Sunny | 21° /13° | 0.5 mm | 5 | |
| 16 Sept. | Light rain | 20° /13° | 5 mm | 5 | |
| 17 Sept. | Light rain | 19° /13° | 4.9 mm | 4 | |
| 18 Sept. |  Overcast | 21° /13° | 0.3 mm | 4 | |
| 19 Sept. | Light rain | 23° /16° | 4.4 mm | 5 | |
| 20 Sept. | Overcast | 22° /16° | 0.2 mm | 5 | |
| 21 Sept. | Sunny | 22° /14° | 0 mm | 5 | |
| 22 Sept. | Sunny | 22° /13° | 0 mm | 5.2 | |
| 23 Sept. | Patchy rain possible | 20° /13° | 1.9 mm | 4 | |
| 24 Sept. | Moderate rain | 18° /14° | 16.9 mm | 3 | |
| 25 Sept. | Light rain | 18° /12° | 4.7 mm | 4 | |
| 26 Sept. | Moderate rain | 20° /13° | 10.9 mm | 4 | |
| 27 Sept. | Light rain | 20° /14° | 4.2 mm | 4 | |
| 28 Sept. | Light rain | 20° /12° | 4.7 mm | 4.6 | |
| 29 Sept. |  Partly cloudy | 19° /12° | 0.2 mm | 4 | |
| 30 Sept. | Partly cloudy | 17° /11° | 0.3 mm | 4 | |
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Opatija weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Patchy rain possible | Patchy rain possible |
| Temperatures | 28°/19° | 22°/15° | 17°/11° |
| Rainfall | 75 mm | 170 mm | 242 mm |
| Wind | 12.8 km/h | 13.4 km/h | 13.8 km/h |
| Humidity | 60% | 69% | 76% |
| Rainy days | 8 days | 12 days | 14 days |
| Dry days | 23 days | 18 days | 17 days |
Planning a trip to Opatija? Discover the best time to visit
Opatija in September - FAQ
What are the expected maximum and minimum temperatures in Opatija during September?
How much rainfall should be expected in Opatija during September?
What are the typical wind conditions in Opatija during September?
September rainfall patterns in Opatija
UV exposure in Opatija during September
What to pack to Opatija in September?
Mild · highs around 22 °C, frequent showers
As you prepare for your trip to Opatija 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 Opatija, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
Where is Opatija?Get accurate weather forecasts for Opatija, located at latitude 45.337 and longitude 14.308. Stay updated with localized weather information tailored for Opatija.