Banja Luka Weather in September
23.5°C high · 10.2°C low · 84 mm rain · 6.9h sun
Sep is a warm month in Banja Luka — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 23.5°C |
| Average low | 10.2°C |
| Rainfall | 84 mm |
| Sunshine | 6.9 hours/day |
| Daylight | 12.3 hours |
What to pack in September
Pack comfortable clothes with a light layer for evenings for Banja Luka in September.
Banja Luka weather by month
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Frequently asked questions
What is the weather in Banja Luka in September?
Highs of 23.5°C and lows of 10.2°C, with about 84 mm of rain and 6.9 hours of sunshine per day.
Is September a good time to visit Banja Luka?
Sep is a warm month in Banja Luka — not peak season, but a good time to avoid crowds.
What to do in Banja Luka · Best time to visit Banja Luka
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.