Weather in Rijeka in September
Rijeka, Croatia averages a high of 22.7°C (72.9°F) and low of 15.5°C (59.9°F) in September, with 11 rain days and 9.8 hours of daily sunshine. Travel score: 78.5/100 (Good). The best time to visit Rijeka is August.
High
23°C73°F
Low
16°C60°F
🌧️
11
rain days
☀️
9.8
hrs/day sunshine
💧
78%
humidity
79— Good
September in Rijeka is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Rijeka?
How much does it rain in Rijeka in September?
Rijeka receives an average of 193.5mm of rainfall across 11 rainy days in September. The annual total is 1803.2mm.
What should I pack for Rijeka in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (11 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting Croatia in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31