Dublin · Month comparison
September vs July
July ranks #1 overall vs September at #6. Peak Dublin summer — Longitude music festival, peak tourist crowds and the most lively month
September
#6 of 12 months
Best match
The sweet spot — Dublin Fringe, autumn cultural season and good value returning
- ↑Dublin Fringe Festival and Dublin Theatre Festival (September-October): the city's two best cultural months
- ↑Warm enough (13–17°C) for outdoor exploring; autumn light on the Georgian squares beautiful
July
#1 of 12 months
Best match
Peak Dublin summer — Longitude music festival, peak tourist crowds and the most lively month
- ↑Longitude Music Festival (Marlay Park, July): major international artists in a beautiful park setting
- ↑Warm (16–20°C) long days; Howth village, coastal walks and outdoor music all excellent
| Factor | September | July |
|---|---|---|
| Weather score | 7 | 8 |
| Value score | 6 | 4 |
| Crowd score | 5 | 8 |
| Events score | 6 | 7 |
| Atmosphere | 7 | 8 |
| Avg high temp | 17°C | 20°C |
| Monthly rain | 72mm | 70mm |
| Daily sunshine | 5.3hrs | 7hrs |
September trade-offs
- ↓Rain returning; September averages 9+ rainy days
- ↓Tourist season winding down means some summer-only attractions reducing hours
July trade-offs
- ↓Maximum tourist numbers; the City Centre, Temple Bar and tourist sites extremely busy
- ↓Hotel prices at annual peak; Longitude weekend demands months of advance booking
Scores compare months within Dublin. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →