Measurements:
°C
°F
CURRENT WEATHER
23:03
Istria
72°F
SW 6 mph
Feels like: 72°F
Precip: 7%
World Resorts Croatia Istria Weather

14 Day Weather Forecast

09.15
tue
DAY
76°F
SE 6 mph
precip
3%
NIGHT
72°F
SW 6 mph
precip
7%
09.16
wed
DAY
74°F
E 4 mph
precip
3%
NIGHT
74°F
NW 10 mph
precip
6%
09.17
thu
DAY
78°F
N 14 mph
precip
45%
NIGHT
70°F
W 6 mph
precip
73%
09.18
fri
DAY
74°F
N 2 mph
precip
54%
NIGHT
72°F
W 7 mph
precip
60%
09.19
sat
DAY
76°F
SE 2 mph
precip
17%
NIGHT
74°F
SW 5 mph
precip
7%
09.20
sun
DAY
76°F
S 9 mph
precip
7%
NIGHT
76°F
SW 6 mph
precip
19%
09.21
mon
DAY
78°F
S 3 mph
precip
8%
NIGHT
72°F
W 12 mph
precip
5%
09.22
tue
DAY
70°F
W 2 mph
precip
3%
NIGHT
68°F
W 14 mph
precip
13%
09.23
wed
DAY
70°F
NW 7 mph
precip
1%
NIGHT
68°F
W 5 mph
precip
3%
09.24
thu
DAY
70°F
S 7 mph
precip
2%
NIGHT
68°F
S 8 mph
precip
6%
09.25
fri
DAY
70°F
SE 7 mph
precip
15%
NIGHT
68°F
W 8 mph
precip
7%
09.26
sat
DAY
76°F
S 12 mph
precip
2%
NIGHT
70°F
SW 8 mph
precip
9%
09.27
sun
DAY
74°F
W 6 mph
precip
2%
NIGHT
68°F
SW 6 mph
precip
3%
09.28
mon
DAY
72°F
W 3 mph
precip
1%
NIGHT
72°F
E 2 mph
precip
2%

Istria Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Istria was 82.1°F. The maximum and minimum values were 79.6°F and 83.8°F respectively.

Istria on the Weather Map

Best Time to Visit Istria
The most sunny months:
August 24 days
July 23 days
June 21 days
The most warm months:
August 85.8 °F
July 84.8 °F
June 79.5 °F
Warmest sea temperature:
August 81.4 °F
July 80.6 °F
September 76.2 °F
The most cold months:
January 47.2 °F
February 49.1 °F
December 50.6 °F
The most rainy months:
November 6 days
September 6 days
May 5 days
The most windy months:
February 8 mph
November 8 mph
March 7 mph
more details
Croatia Resorts:
NAME
F°
Baska Voda +74
Brela +74
Crikvenica +68
Dubrovnik +70
Istria +72
Klek +64
Makarska +56
Omis +70
Porec +72
Pula +68
Rovinj +70
Split +70
Tucepi +56
Zadar +76
Zagreb +66
all resorts
24 Hours Weather Forecast
Istria
Local time: 23:03
16 sep, wednesday
0000 72°F
SW
6 mph
0300 72°F
SW
4 mph
0600 70°F
SW
5 mph
0900 72°F
SW
4 mph
1200 74°F
E
4 mph
1500 76°F
E
3 mph
1800 78°F
NE
3 mph
2100 76°F
NW
6 mph