12.18
thu
thu
DAY

48°F
NW 1 mph
precip
85%
85%
NIGHT

46°F
N 2 mph
precip
78%
78%
12.19
fri
fri
DAY

46°F
N 2 mph
precip
82%
82%
NIGHT

44°F
SW 2 mph
precip
0%
0%
12.20
sat
sat
DAY

50°F
SW 2 mph
precip
0%
0%
NIGHT

42°F
SW 6 mph
precip
0%
0%
12.21
sun
sun
DAY

46°F
N 1 mph
precip
0%
0%
NIGHT

44°F
W 1 mph
precip
67%
67%
12.22
mon
mon
DAY

50°F
W 2 mph
precip
65%
65%
NIGHT

46°F
NW 6 mph
precip
100%
100%
12.23
tue
tue
DAY

52°F
NE 6 mph
precip
100%
100%
NIGHT

44°F
N 4 mph
precip
100%
100%
12.24
wed
wed
DAY

48°F
N 3 mph
precip
100%
100%
NIGHT

46°F
NW 2 mph
precip
100%
100%
12.25
thu
thu
DAY

52°F
N 3 mph
precip
100%
100%
NIGHT

46°F
SW 6 mph
precip
25%
25%
12.26
fri
fri
DAY

48°F
SW 7 mph
precip
100%
100%
NIGHT

42°F
SW 6 mph
precip
0%
0%
12.27
sat
sat
DAY

48°F
SW 6 mph
precip
0%
0%
NIGHT

44°F
SW 8 mph
precip
28%
28%
12.28
sun
sun
DAY

44°F
SW 7 mph
precip
0%
0%
NIGHT

40°F
SW 6 mph
precip
100%
100%
12.29
mon
mon
DAY

40°F
SW 4 mph
precip
100%
100%
NIGHT

40°F
SW 3 mph
precip
100%
100%
12.30
tue
tue
DAY

42°F
W 4 mph
precip
100%
100%
NIGHT

38°F
SW 7 mph
precip
100%
100%
12.31
wed
wed
DAY

40°F
SW 9 mph
precip
0%
0%
NIGHT

38°F
SW 11 mph
precip
85%
85%
Sea water
temperature
temperature
| Opatija |
Weather in
December
December
| Opatija |
7 day weather
forecast
forecast
| Opatija |
10 day weather
forecast
forecast
| Opatija |
14 day weather
forecast
forecast
| Opatija |
Monthly weather
averages
averages
| Opatija |
Current Weather
Conditions
Conditions
| Opatija |
When is the Best
Time to Visit?
Time to Visit?
| Opatija |
Opatija Sea Water Temperature in December, °F
The average sea surface temperature in December 2025 for Opatija was 57.4°F. The maximum and minimum values were 56.8°F and 59.0°F respectively.
Croatia Resorts:
NAME
F°
| Baska Voda | ![]() |
+58 |
| Brela | ![]() |
+58 |
| Dubrovnik | ![]() |
+60 |
| Hvar | ![]() |
+60 |
| Istria | ![]() |
+56 |
| Makarska | ![]() |
+48 |
| Omis | ![]() |
+60 |
| Porec | ![]() |
+56 |
| Pula | ![]() |
+56 |
| Rijeka | ![]() |
+54 |
| Rovinj | ![]() |
+54 |
| Split | ![]() |
+60 |
| Trogir | ![]() |
+60 |
| Zadar | ![]() |
+60 |
| Zagreb | ![]() |
+54 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Opatija
Local time: 13:38
18 dec, thursday
| 1500 | ![]() |
54°F | N 2 mph |
| 1800 | ![]() |
52°F | N 2 mph |
| 2100 | ![]() |
50°F | NW 2 mph |
19 dec, friday
| 0000 | ![]() |
46°F | N 2 mph |
| 0300 | ![]() |
46°F | N 2 mph |
| 0600 | ![]() |
46°F | N 2 mph |
| 0900 | ![]() |
46°F | N 2 mph |
| 1200 | ![]() |
46°F | N 2 mph |





























