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Rovinj weather in December

Weather in Rovinj: December

Average day temperature: 50.7°F
Average night temperature: 47.2°F
Sea water temperature: 57.6°F
Number of sunny days: 13 days
Day length: 8.7 - 9.0 hours
Number of rainy days: 4 days
Precipitation totals: 3.2 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 53°F. At the same time the lowest night temperature was 37°F. Daily and nightly averages during December were 51.5°F and 48.1°F.

Sea water temperature in Rovinj in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 57.8°F. The highest and lowest sea temperatures during the month were 60.1°F and 55.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Rovinj in December is 4.1 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 7.6 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 December is: 4.4.

Best time for vacation in Rovinj

Sunniest months:
August 25 days
July 24 days
June 22 days
Warmest months:
August 82.2 °F
July 81.5 °F
June 76.7 °F
Warmest sea temp:
August 79.2 °F
July 78.3 °F
September 74.9 °F
Coldest months:
January 47.8 °F
February 49.0 °F
December 50.7 °F
Rainiest months:
November 6 days
September 6 days
May 5 days
Windiest months:
February 9.0 mph
November 9.0 mph
March 8.9 mph

Rovinj on a weather map

Rovinj
+37°F
W 3 mph
Feels like: +36°F
Precip.: 0%
Places in Croatia:
Name
°F
+37°F
+37°F
+32°F
+21°F
+36°F
+37°F
+23°F
+27°F
+37°F
+37°F
+27°F
+37°F
+28°F
+34°F
+41°F
24 Hours Forecast
Rovinj
Local time: 03:10
January 12, monday
0600
37°F
W
4 mph
0900
39°F
NW
6 mph
1200
43°F
N
6 mph
1500
43°F
NE
6 mph
1800
43°F
NE
5 mph
2100
41°F
NE
4 mph
January 13, tuesday
0000
41°F
E
2 mph
0300
41°F
NE
2 mph

Best place for vacation:

Units of measurement: °C / °F