Weather in Dublin in September
Dublin, United States averages a high of 27.4°C (81.3°F) and low of 14.1°C (57.4°F) in September, with 1 rain days and 11.6 hours of daily sunshine. Travel score: 97.6/100 (Excellent). The best time to visit Dublin is July.
High
27°C81°F
Low
14°C57°F
🌧️
1
rain days
☀️
11.6
hrs/day sunshine
💧
65%
humidity
98— Excellent
September in Dublin is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Dublin?
How much does it rain in Dublin in September?
Dublin receives an average of 2.8mm of rainfall across 1 rainy days in September. The annual total is 485mm.
What should I pack for Dublin in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°C from day to night
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Data based on 1994–2024 averages · Last updated: 2024-12-31