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Rovinj weather in September

Weather in Rovinj: September

Average day temperature: 74.2°F
Average night temperature: 67.1°F
Sea water temperature: 75.1°F
Number of sunny days: 19 days
Day length: 11.8 - 13.3 hours
Number of rainy days: 6 days
Precipitation totals: 3.8 in.

Air temperature in September, °F

Show year:
2026
2025
2024

The highest day temperature during September of 2026 was 84°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during September were 75.8°F and 67.0°F.

Sea water temperature in Rovinj in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 78.1°F. The highest and lowest sea temperatures during the month were 81.1°F and 73.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Rovinj in September is 3.7 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 7.7 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.5.

Best time for vacation in Rovinj

Sunniest months:
August 25 days
July 24 days
June 22 days
Warmest months:
August 82.4 °F
July 81.5 °F
June 76.7 °F
Warmest sea temp:
August 79.4 °F
July 78.4 °F
September 75.1 °F
Coldest months:
January 47.7 °F
February 49.1 °F
December 50.7 °F
Rainiest months:
November 6 days
September 6 days
May 5 days
Windiest months:
November 9.0 mph
February 8.9 mph
March 8.8 mph

Rovinj on a weather map

Rovinj
+70°F
E 5 mph
Feels like: +70°F
Precip.: 11%
Places in Croatia:
Name
°F
+72°F
+72°F
+72°F
+72°F
+70°F
+68°F
+79°F
+75°F
+70°F
+68°F
+72°F
+70°F
+70°F
+75°F
+68°F
24 Hours Forecast
Rovinj
Local time: 15:32
October 05, monday
1800
68°F
E
4 mph
2100
63°F
S
4 mph
October 06, tuesday
0000
61°F
W
3 mph
0300
63°F
SW
4 mph
0600
61°F
W
3 mph
0900
66°F
W
4 mph
1200
72°F
N
5 mph
1500
72°F
N
6 mph

Best place for vacation:

Units of measurement: °C / °F