World Resorts

Croatia

Opatija Weather

Opatija 14 Days Forecast

30.12
tue

Day

41°F

SW 10 mph

Precip.
0%

Night

32°F

SW 8 mph

Precip.
0%

31.12
wed

Day

36°F

SW 4 mph

Precip.
0%

Night

32°F

S 1 mph

Precip.
0%

01.01
thu

Day

37°F

N 6 mph

Precip.
100%

Night

39°F

NE 7 mph

Precip.
100%

02.01
fri

Day

37°F

NE 4 mph

Precip.
100%

Night

39°F

NE 2 mph

Precip.
100%

03.01
sat

Day

46°F

N 22 mph

Precip.
100%

Night

50°F

NE 19 mph

Precip.
100%

04.01
sun

Day

34°F

W 11 mph

Precip.
100%

Night

27°F

SW 16 mph

Precip.
100%

05.01
mon

Day

27°F

SW 12 mph

Precip.
100%

Night

25°F

SW 11 mph

Precip.
47%

06.01
tue

Day

27°F

SW 11 mph

Precip.
29%

Night

16°F

SW 8 mph

Precip.
0%

07.01
wed

Day

27°F

SW 5 mph

Precip.
0%

Night

18°F

SW 6 mph

Precip.
0%

08.01
thu

Day

28°F

E 2 mph

Precip.
0%

Night

28°F

E 3 mph

Precip.
100%

09.01
fri

Day

32°F

SE 4 mph

Precip.
21%

Night

25°F

SW 4 mph

Precip.
0%

10.01
sat

Day

36°F

NW 2 mph

Precip.
0%

Night

32°F

E 1 mph

Precip.
56%

11.01
sun

Day

39°F

E 4 mph

Precip.
74%

Night

36°F

SW 4 mph

Precip.
0%

12.01
mon

Day

37°F

SW 3 mph

Precip.
58%

Night

39°F

SW 5 mph

Precip.
0%

sea water
temperature

Opatija

monthly
weather

Opatija

current
weather

Opatija

7 days
forecast

Opatija

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 56.5°F. The highest and lowest sea temperatures during the month were 58.1°F and 55.4°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 53.6°F. The highest and lowest sea temperatures during the month were 55.2°F and 52.0°F.