- Explore latest special offers & online deals from TUI
- Free child places & £0 deposits with direct debit available
- Book summer & winter sun holidays in 2026/2027
Rijeka weather by month
Check out Rijeka weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Rijeka (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 4 |
6 |
9 |
13 |
18 |
22 |
24 |
24 |
20 |
16 |
10 |
5 |
| Min temperature (night-time) | -4 |
-3 |
-1 |
3 |
7 |
10 |
12 |
11 |
9 |
5 |
1 |
-3 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
L |
L |
0 |
0 |
0 |
0 |
| Sea temperature | 11 |
10 |
10 |
12 |
17 |
21 |
23 |
24 |
21 |
18 |
15 |
13 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Rijeka
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 9 |
10 |
12 |
14 |
15 |
16 |
15 |
14 |
13 |
11 |
10 |
9 |
| UV Index (Maximum) | 1 |
2 |
3 |
5 |
7 |
8 |
8 |
7 |
5 |
3 |
2 |
1 |
Rainfall in Rijeka
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 14 |
13 |
14 |
16 |
16 |
16 |
13 |
13 |
13 |
13 |
15 |
14 |
| Average monthly rainfall (mm) | 114 |
103 |
118 |
126 |
119 |
134 |
101 |
126 |
143 |
154 |
185 |
131 |
More about Rijeka
Rijeka by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Croatia
The climate guide for Croatia (Rijeka) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Rijeka?
Rijeka has a temperate climate with hot summers and some rainfall in all months.
Rijeka weather in January
Expect daytime maximum temperatures of 4°C in Rijeka, Croatia in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 114 mm of rainfall in the month, which might fall as snow.
- 4°C max day temperature
4 - 4 hours of sunshine per day
- 14 days with some rainfall
14 - -4°C min night temperature
-4 - 9 hours of daylight per day
9 - No heat & humidity
0 - 114 mm of monthly rainfall
114 - 1 (Low) UV index
1 - 11°C sea temperature
11
Rijeka weather in February
Expect daytime maximum temperatures of 6°C in Rijeka, Croatia in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 103 mm of rainfall in the month.
- 6°C max day temperature
6 - 5 hours of sunshine per day
- 13 days with some rainfall
13 - -3°C min night temperature
-3 - 10 hours of daylight per day
10 - No heat & humidity
0 - 103 mm of monthly rainfall
103 - 2 (Low) UV index
2 - 10°C sea temperature
10
Rijeka weather in March
Expect daytime maximum temperatures of 9°C in Rijeka, Croatia in March based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 118 mm of rainfall in the month.
- 9°C max day temperature
9 - 5 hours of sunshine per day
- 14 days with some rainfall
14 - -1°C min night temperature
-1 - 12 hours of daylight per day
12 - No heat & humidity
0 - 118 mm of monthly rainfall
118 - 3 (Moderate) UV index
3 - 10°C sea temperature
10
Rijeka weather in April
Expect daytime maximum temperatures of 13°C in Rijeka, Croatia in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 126 mm of rainfall in the month.
- 13°C max day temperature
13 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 3°C min night temperature
3 - 14 hours of daylight per day
14 - No heat & humidity
0 - 126 mm of monthly rainfall
126 - 5 (Moderate) UV index
5 - 12°C sea temperature
12
Rijeka weather in May
Expect daytime maximum temperatures of 18°C in Rijeka, Croatia in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 119 mm of rainfall in the month.
- 18°C max day temperature
18 - 7 hours of sunshine per day
- 16 days with some rainfall
16 - 7°C min night temperature
7 - 15 hours of daylight per day
15 - No heat & humidity
0 - 119 mm of monthly rainfall
119 - 7 (High) UV index
7 - 17°C sea temperature
17
Rijeka weather in June
Expect daytime maximum temperatures of 22°C in Rijeka, Croatia in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 16 days with some rainfall and typically 134 mm of rainfall in the month.
- 22°C max day temperature
22 - 8 hours of sunshine per day
- 16 days with some rainfall
16 - 10°C min night temperature
10 - 16 hours of daylight per day
16 - No heat & humidity
0 - 134 mm of monthly rainfall
134 - 8 (Very High) UV index
8 - 21°C sea temperature
21
Rijeka weather in July
Expect daytime maximum temperatures of 24°C in Rijeka, Croatia in July based on long-term weather averages. There are 9 hours of sunshine per day on average with 13 days with some rainfall and typically 101 mm of rainfall in the month.
- 24°C max day temperature
24 - 9 hours of sunshine per day
- 13 days with some rainfall
13 - 12°C min night temperature
12 - 15 hours of daylight per day
15 - Low heat & humidity
L - 101 mm of monthly rainfall
101 - 8 (Very High) UV index
8 - 23°C sea temperature
23
Rijeka weather in August
Expect daytime maximum temperatures of 24°C in Rijeka, Croatia in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 126 mm of rainfall in the month.
- 24°C max day temperature
24 - 8 hours of sunshine per day
- 13 days with some rainfall
13 - 11°C min night temperature
11 - 14 hours of daylight per day
14 - Low heat & humidity
L - 126 mm of monthly rainfall
126 - 7 (High) UV index
7 - 24°C sea temperature
24
Rijeka weather in September
Expect daytime maximum temperatures of 20°C in Rijeka, Croatia in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 143 mm of rainfall in the month.
- 20°C max day temperature
20 - 7 hours of sunshine per day
- 13 days with some rainfall
13 - 9°C min night temperature
9 - 13 hours of daylight per day
13 - No heat & humidity
0 - 143 mm of monthly rainfall
143 - 5 (Moderate) UV index
5 - 21°C sea temperature
21
Rijeka weather in October
Expect daytime maximum temperatures of 16°C in Rijeka, Croatia in October based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 154 mm of rainfall in the month.
- 16°C max day temperature
16 - 5 hours of sunshine per day
- 13 days with some rainfall
13 - 5°C min night temperature
5 - 11 hours of daylight per day
11 - No heat & humidity
0 - 154 mm of monthly rainfall
154 - 3 (Moderate) UV index
3 - 18°C sea temperature
18
Rijeka weather in November
Expect daytime maximum temperatures of 10°C in Rijeka, Croatia in November based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 185 mm of rainfall in the month.
- 10°C max day temperature
10 - 3 hours of sunshine per day
- 15 days with some rainfall
15 - 1°C min night temperature
1 - 10 hours of daylight per day
10 - No heat & humidity
0 - 185 mm of monthly rainfall
185 - 2 (Low) UV index
2 - 15°C sea temperature
15
Rijeka weather in December
Expect daytime maximum temperatures of 5°C in Rijeka, Croatia in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 131 mm of rainfall in the month, which might fall as snow.
- 5°C max day temperature
5 - 3 hours of sunshine per day
- 14 days with some rainfall
14 - -3°C min night temperature
-3 - 9 hours of daylight per day
9 - No heat & humidity
0 - 131 mm of monthly rainfall
131 - 1 (Low) UV index
1 - 13°C sea temperature
13
More about Rijeka
Rijeka by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Croatia
- Explore latest special offers & online deals from TUI
- Free child places & £0 deposits with direct debit available
- Book summer & winter sun holidays in 2026/2027
The climate guide for Croatia (Rijeka) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Compare Rijeka weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Rijeka, Croatia and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Croatia
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holiday destinations
- Beach holidays
- City breaks
- Family holidays
- Half term holidays
- Spring holidays
- Summer holidays
- Autumn holidays
- Winter sun holidays
- Honeymoons
- Coolcations
- Compare places
- Ski resorts
Save with latest deals & discounts
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- TUI
- Jet2holidays
- Neilson
- Marella Cruises
- Holiday Extras
- Pierre & Vacances
- Caledonian Travel
- Club Med
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport












TUI deal finder