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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 (°F)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 39 |
43 |
48 |
55 |
64 |
72 |
75 |
75 |
68 |
61 |
50 |
41 |
| Min temperature (night-time) | 25 |
27 |
30 |
37 |
45 |
50 |
54 |
52 |
48 |
41 |
34 |
27 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
L |
L |
0 |
0 |
0 |
0 |
| Sea temperature | 52 |
50 |
50 |
54 |
63 |
70 |
73 |
75 |
70 |
64 |
59 |
55 |
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 (inches) | 4.5 |
4.1 |
4.6 |
5.0 |
4.7 |
5.3 |
4.0 |
5.0 |
5.6 |
6.1 |
7.3 |
5.2 |
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 39°F 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 4.5 inches of rainfall in the month, which might fall as snow.
- 39°F max day temperature
39 - 4 hours of sunshine per day
- 14 days with some rainfall
14 - 25°F min night temperature
25 - 9 hours of daylight per day
9 - No heat & humidity
0 - 4.5 inches of monthly rainfall
4.5 - 1 (Low) UV index
1 - 52°F sea temperature
52
Rijeka weather in February
Expect daytime maximum temperatures of 43°F 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 4.1 inches of rainfall in the month.
- 43°F max day temperature
43 - 5 hours of sunshine per day
- 13 days with some rainfall
13 - 27°F min night temperature
27 - 10 hours of daylight per day
10 - No heat & humidity
0 - 4.1 inches of monthly rainfall
4.1 - 2 (Low) UV index
2 - 50°F sea temperature
50
Rijeka weather in March
Expect daytime maximum temperatures of 48°F 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 4.6 inches of rainfall in the month.
- 48°F max day temperature
48 - 5 hours of sunshine per day
- 14 days with some rainfall
14 - 30°F min night temperature
30 - 12 hours of daylight per day
12 - No heat & humidity
0 - 4.6 inches of monthly rainfall
4.6 - 3 (Moderate) UV index
3 - 50°F sea temperature
50
Rijeka weather in April
Expect daytime maximum temperatures of 55°F 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 5.0 inches of rainfall in the month.
- 55°F max day temperature
55 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 37°F min night temperature
37 - 14 hours of daylight per day
14 - No heat & humidity
0 - 5.0 inches of monthly rainfall
5.0 - 5 (Moderate) UV index
5 - 54°F sea temperature
54
Rijeka weather in May
Expect daytime maximum temperatures of 64°F 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 4.7 inches of rainfall in the month.
- 64°F max day temperature
64 - 7 hours of sunshine per day
- 16 days with some rainfall
16 - 45°F min night temperature
45 - 15 hours of daylight per day
15 - No heat & humidity
0 - 4.7 inches of monthly rainfall
4.7 - 7 (High) UV index
7 - 63°F sea temperature
63
Rijeka weather in June
Expect daytime maximum temperatures of 72°F 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 5.3 inches of rainfall in the month.
- 72°F max day temperature
72 - 8 hours of sunshine per day
- 16 days with some rainfall
16 - 50°F min night temperature
50 - 16 hours of daylight per day
16 - No heat & humidity
0 - 5.3 inches of monthly rainfall
5.3 - 8 (Very High) UV index
8 - 70°F sea temperature
70
Rijeka weather in July
Expect daytime maximum temperatures of 75°F 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 4.0 inches of rainfall in the month.
- 75°F max day temperature
75 - 9 hours of sunshine per day
- 13 days with some rainfall
13 - 54°F min night temperature
54 - 15 hours of daylight per day
15 - Low heat & humidity
L - 4.0 inches of monthly rainfall
4.0 - 8 (Very High) UV index
8 - 73°F sea temperature
73
Rijeka weather in August
Expect daytime maximum temperatures of 75°F 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 5.0 inches of rainfall in the month.
- 75°F max day temperature
75 - 8 hours of sunshine per day
- 13 days with some rainfall
13 - 52°F min night temperature
52 - 14 hours of daylight per day
14 - Low heat & humidity
L - 5.0 inches of monthly rainfall
5.0 - 7 (High) UV index
7 - 75°F sea temperature
75
Rijeka weather in September
Expect daytime maximum temperatures of 68°F 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 5.6 inches of rainfall in the month.
- 68°F max day temperature
68 - 7 hours of sunshine per day
- 13 days with some rainfall
13 - 48°F min night temperature
48 - 13 hours of daylight per day
13 - No heat & humidity
0 - 5.6 inches of monthly rainfall
5.6 - 5 (Moderate) UV index
5 - 70°F sea temperature
70
Rijeka weather in October
Expect daytime maximum temperatures of 61°F 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 6.1 inches of rainfall in the month.
- 61°F max day temperature
61 - 5 hours of sunshine per day
- 13 days with some rainfall
13 - 41°F min night temperature
41 - 11 hours of daylight per day
11 - No heat & humidity
0 - 6.1 inches of monthly rainfall
6.1 - 3 (Moderate) UV index
3 - 64°F sea temperature
64
Rijeka weather in November
Expect daytime maximum temperatures of 50°F 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 7.3 inches of rainfall in the month.
- 50°F max day temperature
50 - 3 hours of sunshine per day
- 15 days with some rainfall
15 - 34°F min night temperature
34 - 10 hours of daylight per day
10 - No heat & humidity
0 - 7.3 inches of monthly rainfall
7.3 - 2 (Low) UV index
2 - 59°F sea temperature
59
Rijeka weather in December
Expect daytime maximum temperatures of 41°F 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 5.2 inches of rainfall in the month, which might fall as snow.
- 41°F max day temperature
41 - 3 hours of sunshine per day
- 14 days with some rainfall
14 - 27°F min night temperature
27 - 9 hours of daylight per day
9 - No heat & humidity
0 - 5.2 inches of monthly rainfall
5.2 - 1 (Low) UV index
1 - 55°F sea temperature
55
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 (°F)
Metric (°C) | Imperial (°F)
More about Croatia
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