Oslo vs Bergen

Oslo and Bergen are closely matched in September. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Oslo is on the cooler side at 10°C, requiring warmer clothing. Bergen is cooler at 14°C.

For travelers who prioritize dry weather, Oslo is the stronger choice in September. Bergen receives 3 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Oslo reaches an average high of 10°C (50°F) and drops to -2°C (28°F) at night during September. The daily temperature range is 12°C, meaning significant temperature swings between day and night.

Bergen averages 14°C (57°F) for the high and 9°C (48°F) for the low, with a daily range of 5°C. The 4°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Oslo receives approximately 50 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Bergen sees 245 mm over 18 rain days. That makes Oslo the drier option by 14 rain days and 195 mm of total precipitation.

Both cities share similar humidity levels at 65%.