Climate in Rijeka

Rijeka, Croatia has a mediterranean climate. The annual average temperature is about 13.7°C and the city receives roughly 900 mm of precipitation across 100 rainy days a year, with around 2365 hours of sunshine. The warmest month is Jul (highs near 25.2°C) and the coldest is Jan (lows near 2.2°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Rijeka is classified as Mediterranean. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Rijeka receives about 900 mm of precipitation a year over roughly 100 rainy days. The wettest month is Dec and the driest is Jul.

Rijeka sees an estimated 2365 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Rijeka are Jul, Jun, Aug. Conditions vary year to year — verify with a current forecast before booking.

Rijeka has a climate comfort score of 81/100, a very comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.