Rijeka, where it's located

The climate of Rijeka can be described as transitional Mediterranean.
Rijeka (or Fiume) is located on the northern coast of Croatia, east of Istria.
The average temperature of the coldest month (January) is of 6 °C (43 °F), that of the warmest months (July, August) is of 23.5 °C (74 °F). Here are the average temperatures.
Rijeka - Average temperatures
Min (°C)336913161919151174
Max (°C)91012162125282824191310
Min (°F)373743485561666659524539
Max (°F)485054617077828275665550

Precipitation amounts to 1,540 millimeters (60.6 inches) per year: it is therefore abundant. The city is particularly rainy because it is located on the coast and is exposed to the sea winds, but it is also at the foot of the Dinaric Alps. Rainfall ranges from 80 mm (3.1 in) in the driest month (July) to 185 mm (7.3 in) in the wettest (November). Here is the average precipitation.
Rijeka - Average precipitation

On average, there are around 2,200 sunshine hours per year. Here are the average sunshine hours per day.
Rijeka - Sunshine

The sea temperature ranges between 11 °C (52 °F) and 25 °C (77 °F). The sea is warm enough for swimming from July to September. Here are the average sea temperatures.
Rijeka - Sea temperature
Temp (°C)121111131722242523191614
Temp (°F)545252556372757773666157


Best Time

The best periods to visit Rijeka are spring and autumn, and in particular, from mid-April to mid-June and in the month of September. However, in both periods, some rainy days are possible.
The best months to go to the beach are July and August. In June, the sea is still a little cool.