Measurements:
°C
°F
CURRENT WEATHER
19:16
Opatija
44°F
SW 11 mph
Feels like: 38°F
Precip: 72%
World Resorts Croatia Opatija Weather

7 Day Weather Forecast

05.12
tue
DAY
58°F
N 9 mph
precip
100%
NIGHT
34°F
SW 7 mph
precip
0%
05.13
wed
DAY
58°F
W 2 mph
precip
0%
NIGHT
50°F
SW 1 mph
precip
0%
05.14
thu
DAY
56°F
N 8 mph
precip
100%
NIGHT
46°F
NE 6 mph
precip
100%
05.15
fri
DAY
56°F
NE 11 mph
precip
100%
NIGHT
54°F
NE 4 mph
precip
100%
05.16
sat
DAY
52°F
S 3 mph
precip
100%
NIGHT
44°F
SW 6 mph
precip
0%
05.17
sun
DAY
58°F
NE 2 mph
precip
100%
NIGHT
44°F
SW 6 mph
precip
0%
05.18
mon
DAY
66°F
NW 5 mph
precip
28%
NIGHT
48°F
SW 6 mph
precip
0%

Opatija Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Opatija was 16.8°F. The maximum and minimum values were 15.9°F and 17.6°F respectively.

Opatija on the Weather Map

Best Time to Visit Opatija
The most sunny months:
August 23 days
July 21 days
June 20 days
The most warm months:
August 83.2 °F
July 83.0 °F
June 78.4 °F
Warmest sea temperature:
August 78.9 °F
July 78.5 °F
September 73.7 °F
The most cold months:
January 41.4 °F
February 43.6 °F
December 44.5 °F
The most rainy months:
May 7 days
November 6 days
July 6 days
The most windy months:
February 8 mph
March 7 mph
November 7 mph
more details