World Resorts Croatia Istria Weather

Istria 7 Days Forecast

17.05
sun
Day
61°F
NE 6 mph
Precip.
100%
Night
54°F
W 6 mph
Precip.
0%
18.05
mon
Day
64°F
NE 6 mph
Precip.
0%
Night
55°F
W 7 mph
Precip.
0%
19.05
tue
Day
66°F
E 6 mph
Precip.
0%
Night
57°F
SW 5 mph
Precip.
0%
20.05
wed
Day
68°F
E 5 mph
Precip.
0%
Night
61°F
SW 6 mph
Precip.
0%
21.05
thu
Day
68°F
NE 3 mph
Precip.
30%
Night
61°F
SW 5 mph
Precip.
0%
22.05
fri
Day
70°F
E 6 mph
Precip.
0%
Night
63°F
SW 4 mph
Precip.
0%
23.05
sat
Day
72°F
NE 6 mph
Precip.
0%
Night
64°F
S 8 mph
Precip.
100%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 61.9°F. The highest and lowest sea temperatures during the month were 63.5°F and 59.4°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 47.5 °F
February 49.2 °F
December 50.5 °F
Rainiest months:
November 6 days
September 6 days
May 6 days
Windiest months:
February 8.2 mph
November 8.1 mph
March 7.9 mph

Istria on a weather map

Current weather
00:41
Istria
+55°F
SE 1 mph
Feels like: +55°F
Precip.: 100%
Places in Croatia:
Name
°F
Baska Voda
+54°F
Brela
+54°F
Dubrovnik
+55°F
Zagreb
+48°F
Zadar
+57°F
Istria
+55°F
Klek
+52°F
Makarska
+46°F
Omis
+50°F
Porec
+55°F
Pula
+54°F
Rijeka
+43°F
Rovinj
+55°F
Split
+50°F
Trogir
+52°F
all places
24 Hours Forecast
Istria
Local time: 00:41
May 17, sunday
0300
52°F
W
6 mph
0600
52°F
W
5 mph
0900
59°F
NW
4 mph
1200
61°F
NE
6 mph
1500
64°F
NE
8 mph
1800
63°F
N
5 mph
2100
57°F
NW
3 mph
May 18, monday
0000
54°F
W
6 mph
Units of measurement: °C / °F