Opatija weather live forecast

Today's maximum temperature in Opatija is expected to be 27°C. Select a day from the live weather forecast for Opatija, Croatia for more weather parameters.

Wednesday
16th Sep
27

18

12

5
Thursday
17th Sep
23

19

1

3
Friday
18th Sep
23

18

0

3
Saturday
19th Sep
26

19

8

5
Sunday
20th Sep
28

19

9

5

5-day weather forecast updated at 04:02 on Wednesday 16th September 2026 GMT

More about Opatija

Opatija by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Croatia

Jet2holidays: up to £700 off late summer breaks

Sale

Save up to £700 off late summer family holidays
Discount based on 2 adults & 2 children. T&Cs apply
Travel before 31st October 2026 (inclusive)

Go to Jet2holidays deal >>

Expires at 23:59 on Wednesday 30th Sep 2026 · View all Jet2holidays offers

The 5-day weather forecast for Croatia (Opatija) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Opatija weather forecast by day

Below are the detailed weather forecasts for Opatija for the next 5 days.

Opatija weather for Wednesday 16th September 2026

Expect clear skies in Opatija, Croatia with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

27
°C maximum temperature
18
°C minimum temperature
clear skies
12
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
6
kph wind from NW

Opatija weather for Thursday 17th September 2026

Expect isolated thunderstorms in Opatija, Croatia with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 84% chance of some rain and a light breeze of 7 kph from the north-west.

23
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
3
UV index (Moderate)
84
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
7
kph wind from NW

Opatija weather for Friday 18th September 2026

Expect isolated thunderstorms in Opatija, Croatia with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and little or no wind of 6 kph from the east.

23
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
88
% chance of some rain
<20
mm of rainfall expected
23
°C wind chill
6
kph wind from E

Opatija weather for Saturday 19th September 2026

Expect isolated thunderstorms in Opatija, Croatia with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and little or no wind of 6 kph from the north.

26
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
5
UV index (Moderate)
58
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
6
kph wind from N

Opatija weather for Sunday 20th September 2026

Expect scattered clouds in Opatija, Croatia with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.