World Resorts Croatia Istria Weather

Istria 7 Days Forecast

24.12
wed
Day
46°F
W 17 mph
Precip.
100%
Night
43°F
SW 13 mph
Precip.
0%
25.12
thu
Day
46°F
SW 11 mph
Precip.
63%
Night
41°F
SW 7 mph
Precip.
0%
26.12
fri
Day
46°F
SW 2 mph
Precip.
0%
Night
41°F
SW 5 mph
Precip.
0%
27.12
sat
Day
46°F
SE 2 mph
Precip.
0%
Night
43°F
S 7 mph
Precip.
0%
28.12
sun
Day
46°F
W 2 mph
Precip.
0%
Night
39°F
SW 2 mph
Precip.
0%
29.12
mon
Day
45°F
SE 7 mph
Precip.
0%
Night
45°F
NE 3 mph
Precip.
0%
30.12
tue
Day
46°F
N 5 mph
Precip.
100%
Night
45°F
SE 4 mph
Precip.
81%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 57.3°F. The highest and lowest sea temperatures during the month were 58.5°F and 56.1°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 52.7°F. The highest and lowest sea temperatures during the month were 53.8°F and 51.4°F.

Air temperature in Istria, °F

Precipitation total in Istria, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Istria

Sunniest months:
July 24 days
August 24 days
June 22 days
Warmest months:
August 82.1 °F
July 81.3 °F
June 76.5 °F
Warmest sea temp:
August 78.1 °F
July 77.5 °F
September 73.6 °F
Coldest months:
January 47.6 °F
February 49.0 °F
December 50.4 °F
Rainiest months:
November 6 days
September 6 days
May 6 days
Windiest months:
February 8.3 mph
November 8.1 mph
March 8.0 mph

Istria on a weather map

Istria
+48°F
SW 7 mph
Feels like: +45°F
Precip.: 100%
Places in Croatia:
Name
°F
+54°F
+54°F
+54°F
+37°F
+50°F
+48°F
+46°F
+52°F
+48°F
+46°F
+36°F
+48°F
+52°F
+54°F
+55°F
24 Hours Forecast
Istria
Local time: 03:44
December 24, wednesday
0600
46°F
W
12 mph
0900
45°F
SW
17 mph
1200
46°F
W
17 mph
1500
46°F
SW
16 mph
1800
45°F
SW
18 mph
2100
45°F
SW
14 mph
December 25, thursday
0000
43°F
SW
13 mph
0300
43°F
W
12 mph
Units of measurement: °C / °F