Luxembourg City vs London

Luxembourg City and London 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.

Luxembourg City sits in the comfortable travel range at 18°C. London is also comfortable at 19°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Luxembourg City reaches an average high of 18°C (64°F) and drops to 10°C (50°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.

London averages 19°C (66°F) for the high and 11°C (52°F) for the low, with a daily range of 8°C. The two cities feel quite similar in terms of temperature.

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

Luxembourg City receives approximately 61 mm of rainfall across 9 rain days during September. You can expect rain roughly every other day.

London sees 48 mm over 9 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.