25.08
tue
tue
Day
77°F
NW 9 mph
Precip.
5%
5%
Night
73°F
W 7 mph
Precip.
43%
43%
26.08
wed
wed
Day
77°F
E 4 mph
Precip.
4%
4%
Night
75°F
SW 6 mph
Precip.
16%
16%
27.08
thu
thu
Day
79°F
N 4 mph
Precip.
14%
14%
Night
79°F
NW 8 mph
Precip.
7%
7%
28.08
fri
fri
Day
81°F
N 11 mph
Precip.
4%
4%
Night
81°F
NE 9 mph
Precip.
18%
18%
29.08
sat
sat
Day
81°F
N 14 mph
Precip.
5%
5%
Night
75°F
W 6 mph
Precip.
8%
8%
30.08
sun
sun
Day
77°F
E 6 mph
Precip.
2%
2%
Night
75°F
SW 7 mph
Precip.
3%
3%
31.08
mon
mon
Day
79°F
SE 7 mph
Precip.
2%
2%
Night
75°F
W 4 mph
Precip.
3%
3%
01.09
tue
tue
Day
79°F
SE 6 mph
Precip.
2%
2%
Night
77°F
N 5 mph
Precip.
15%
15%
02.09
wed
wed
Day
77°F
E 2 mph
Precip.
9%
9%
Night
73°F
W 9 mph
Precip.
43%
43%
03.09
thu
thu
Day
77°F
SE 3 mph
Precip.
15%
15%
Night
72°F
W 13 mph
Precip.
31%
31%
04.09
fri
fri
Day
73°F
NW 4 mph
Precip.
26%
26%
Night
72°F
NW 6 mph
Precip.
33%
33%
05.09
sat
sat
Day
72°F
N 9 mph
Precip.
13%
13%
Night
72°F
NW 11 mph
Precip.
9%
9%
06.09
sun
sun
Day
75°F
N 22 mph
Precip.
37%
37%
Night
70°F
NE 14 mph
Precip.
71%
71%
07.09
mon
mon
Day
70°F
S 9 mph
Precip.
9%
9%
Night
72°F
E 6 mph
Precip.
7%
7%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 80.7°F. The highest and lowest sea temperatures during the month were 82.4°F and 79.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 74.8°F. The highest and lowest sea temperatures during the month were 76.5°F and 72.7°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
Istria on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Istria
Local time: 12:34
August 25, tuesday
1500
77°F
NE
12 mph
12 mph
1800
79°F
N
8 mph
8 mph
2100
75°F
NW
13 mph
13 mph
August 26, wednesday
0000
73°F
W
7 mph
7 mph
0300
73°F
SW
4 mph
4 mph
0600
72°F
SW
6 mph
6 mph
0900
73°F
SW
3 mph
3 mph
1200
77°F
E
4 mph
4 mph
