Weather in Rovinj for September 2026
In general, the average temperature in Rovinj at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °C by the end of September.
The climate of Rovinj in September is notably wet, with an average of 12 rainy days, and a total of 330.8 mm of precipitation.
Is September a good time to visit Rovinj? check out the best time to travel to Rovinj page.
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Rovinj Weather September
Temperatures trend during September in Rovinj
September weather in Rovinj day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 26° /20° | 0.3 mm | 6 | |
| 2 Sept. | Sunny | 26° /20° | 3 mm | 6 | |
| 3 Sept. |  Patchy rain possible | 26° /20° | 1 mm | 6 | |
| 4 Sept. | Sunny | 26° /20° | 0 mm | 7 | |
| 5 Sept. | Sunny | 27° /19° | 3.1 mm | 7 | |
| 6 Sept. | Sunny | 25° /19° | 2.4 mm | 6 | |
| 7 Sept. | Sunny | 26° /19° | 0 mm | 6 | |
| 8 Sept. | Sunny | 26° /19° | 3 mm | 6 | |
| 9 Sept. | Sunny | 25° /19° | 8.4 mm | 6 | |
| 10 Sept. | Sunny | 24° /18° | 23.1 mm | 6 | |
| 11 Sept. | Sunny | 25° /19° | 3.5 mm | 6 | |
| 12 Sept. |  Overcast | 24° /19° | 13.6 mm | 5 | |
| 13 Sept. |  Partly cloudy | 22° /17° | 0.8 mm | 6 | |
| 14 Sept. | Partly cloudy | 22° /16° | 3.8 mm | 5 | |
| 15 Sept. | Partly cloudy | 22° /17° | 0 mm | 5 | |
| 16 Sept. | Partly cloudy | 23° /17° | 5.3 mm | 5 | |
| 17 Sept. | Partly cloudy | 22° /16° | 0.2 mm | 5 | |
| 18 Sept. | Partly cloudy | 23° /17° | 0 mm | 6 | |
| 19 Sept. | Patchy rain possible | 24° /19° | 1.8 mm | 6 | |
| 20 Sept. | Partly cloudy | 24° /18° | 0.3 mm | 6 | |
| 21 Sept. | Sunny | 24° /18° | 1.2 mm | 6 | |
| 22 Sept. |  Moderate or heavy rain shower | 23° /17° | 7.6 mm | 6 | |
| 23 Sept. | Patchy rain possible | 22° /17° | 6 mm | 5 | |
| 24 Sept. |  Patchy light rain with thunder | 21° /17° | 11 mm | 5 | |
| 25 Sept. | Sunny | 21° /16° | 3.6 mm | 5 | |
| 26 Sept. | Sunny | 23° /16° | 0.7 mm | 6 | |
| 27 Sept. | Sunny | 23° /17° | 2.3 mm | 6 | |
| 28 Sept. | Patchy rain possible | 22° /15° | 3.7 mm | 6 | |
| 29 Sept. | Patchy rain possible | 21° /14° | 0.4 mm | 4 | |
| 30 Sept. | Partly cloudy | 20° /14° | 0.1 mm | 5 | |
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Rovinj weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Patchy rain possible | Sunny |
| Temperatures | 30°/19° | 26°/16° | 21°/13° |
| Rainfall | 387 mm | 331 mm | 391 mm |
| Wind | 14.5 km/h | 16.4 km/h | 17.4 km/h |
| Humidity | 64% | 68% | 74% |
| Rainy days | 11 days | 12 days | 12 days |
| Dry days | 20 days | 18 days | 19 days |
Planning a trip to Rovinj? Discover the best time to visit
Rovinj in September - FAQ
Rovinj water temperatures in September
The average water temperature of the Adriatic Sea near Rovinj in September is 23.9 °C. At the beginning of September temperatures are around 24.2 °C; by the end of the month they get a bit cooler and reach 23.5 °C.
- What is the water temperature in Rovinj in September?
- The average water temperature in Rovinj in September is 23.9 °C.
- Can you swim in Rovinj in September?
- Comfortably warm for most people. Sensitive swimmers might prefer a light rash-guard, but wetsuits are rarely needed.
What to pack to Rovinj in September?
As you prepare for your trip to Rovinj 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 Rovinj, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Rovinj
UV exposure in Rovinj during September
Quick links
Where is Rovinj?Get accurate weather forecasts for Rovinj, located at latitude 45.083 and longitude 13.635. Stay updated with localized weather information tailored for Rovinj.