Dublin · AutumnMonth summary
Dublin weather in September
⚠️ Fair
🌡️ Temperature min / max
52°F – 63°F
🌧 Rainy days
46% of days
☀️ Sunshine
8.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
6.8/10
📅 📅 Best month
June (7.1/10)
Quick decision
Should you visit Dublin in September?
⚠️ Fair
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: Not the best window: 46% rain risk and 8.9h of sunshine. June is much safer.
By trip type
Dublin in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in September
Autumn marks the end of peak season in Dublin. Temperatures drop (17°F) and rain returns (46% of days). With 46% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. June (7.1/10) is significantly better if possible.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 39°F | 46°F | 41% | 0.1in | 4.2h | 3.5/10 |
| 🌦️ February | 39°F | 48°F | 48% | 0.1in | 5.4h | 3.8/10 |
| 🌦️ March | 41°F | 50°F | 45% | 0.1in | 7.4h | 4.2/10 |
| 🌦️ April | 43°F | 54°F | 41% | 0.1in | 10.4h | 5.5/10 |
| 🌦️ May | 48°F | 59°F | 40% | 0.1in | 12.6h | 7.0/10 |
| 🌦️ June | 54°F | 64°F | 48% | 0.1in | 12.0h | 7.1/10 |
| 🌦️ July | 55°F | 66°F | 47% | 0.1in | 10.9h | 7.1/10 |
| 🌦️ August | 55°F | 66°F | 45% | 0.1in | 10.7h | 7.1/10 |
| 🌦️ September | 52°F | 63°F | 46% | 0.1in | 8.9h | 6.8/10 |
| 🌦️ October | 48°F | 57°F | 46% | 0.1in | 6.6h | 4.5/10 |
| 🌦️ November | 43°F | 52°F | 44% | 0.1in | 4.7h | 4.0/10 |
| 🌦️ December | 43°F | 48°F | 45% | 0.1in | 2.7h | 2.8/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Dublin averages 63°F, 46% rainy days and 8.9h of sunshine per day. Overall weather score: 6.8/10.
See methodology →
Comparison
September vs June (best month)
The best month is June (score 7.1/10). Difference:
- 🌡️ Max temperature : +1°F
- 🌧 Rainy days : +2%
- ☀️ Sunshine : +3.1h/day
FAQ
FAQ — Dublin in September
Is September a good time to visit Dublin?
September is an acceptable time for Dublin (score 6.8/10). Conditions are decent but not optimal — consider June (7.1/10) if possible.
What to do in Dublin in September?
With 63°F max and 8.9h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Dublin
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