Monthly climate guide
Rovinj weather in September
September in Rovinj is typically warm, with average daytime highs around 24°C (74°F) and night-time lows near 18°C (64°F). The month usually brings about 110 mm of rain (wet) and is a mix of sun and cloud. Daytime highs are 5°C cooler than August and 5°C warmer than October.
What stands out in September
- Days and nights are close, only about 6°C apart.
- Temperatures are falling — expect highs around 5°C lower by October.
- Seasonally, September counts as early autumn in Rovinj.
- Rovinj is usually about 4°C warmer than Rijeka, 70 km away, in September.
Avg high
24°C
74°F
Avg low
18°C
64°F
Rainfall
110 mm
wet
Humidity
70%
relative
Sky
53%
cloud · a mix of sun and cloud
Rovinj weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 8°C / 47°F | 4°C / 40°F | 71 mm | 81% | 74% |
| February | 9°C / 48°F | 4°C / 39°F | 115 mm | 80% | 70% |
| March | 12°C / 54°F | 7°C / 44°F | 76 mm | 78% | 58% |
| April | 16°C / 61°F | 10°C / 51°F | 59 mm | 75% | 58% |
| May | 20°C / 67°F | 14°C / 57°F | 99 mm | 74% | 60% |
| June | 24°C / 76°F | 19°C / 66°F | 64 mm | 71% | 51% |
| July | 27°C / 81°F | 21°C / 70°F | 56 mm | 66% | 45% |
| August | 28°C / 83°F | 21°C / 71°F | 61 mm | 64% | 40% |
| September | 24°C / 74°F | 18°C / 64°F | 110 mm | 70% | 53% |
| October | 19°C / 65°F | 13°C / 56°F | 113 mm | 78% | 63% |
| November | 14°C / 57°F | 10°C / 49°F | 140 mm | 82% | 71% |
| December | 10°C / 50°F | 6°C / 43°F | 92 mm | 82% | 73% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Rovinj?
Compare the months in the chart above to find your ideal window.
Best time to visit Rovinj →Other Croatia cities in September
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Rovinj weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/croatia/rovinj/september
<a href="https://weathercompare.eu/weather/croatia/rovinj/september">Rovinj weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/croatia/rovinj" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Rovinj weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/croatia/rovinj/september">Rovinj weather in September</a> – WeatherCompare</p>
Rovinj in September: quick answers
Is September a good time to visit Rovinj?
September is one of the wetter months in Rovinj, with about 110 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Rovinj in September?
Average highs are about 24°C (74°F) and average lows about 18°C (64°F), based on 10 years of daily data.
Does it rain a lot in Rovinj in September?
Rovinj typically gets around 110 mm of rain in September — wet.
Figures are long-term averages for the area around Rovinj (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.