Dublin vs Edinburgh

Dublin and Edinburgh 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.

Dublin sits in the comfortable travel range at 17°C. Edinburgh is also comfortable at 15°C.

For travelers who prioritize dry weather, Edinburgh is the stronger choice in September. Dublin receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Dublin reaches an average high of 17°C (63°F) and drops to 11°C (52°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Edinburgh averages 15°C (59°F) for the high and 10°C (50°F) for the low, with a daily range of 5°C. The 2°C difference is noticeable but not dramatic.

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

Dublin receives approximately 70 mm of rainfall across 12 rain days during September. You can expect rain roughly every other day.

Edinburgh sees 61 mm over 11 rain days. That makes Edinburgh the drier option by 1 rain day and 9 mm of total precipitation.

Both cities share similar humidity levels at 65%.