San Sebastián · Month comparison
September vs June
June ranks #1 overall vs September at #3. Pre-school-holiday peak — Jazz fest hasn't hit, but La Concha is finally swim-ready.
September
#3 of 12 months
Best match
Best month overall — Film Festival brings glamour, schools back, sea still 20°C.
- ↑San Sebastián International Film Festival (mid-late Sep) — A-list red carpet at Kursaal
- ↑Spanish kids back at school, beach noticeably quieter from week 1
June
#1 of 12 months
Best match
Pre-school-holiday peak — Jazz fest hasn't hit, but La Concha is finally swim-ready.
- ↑San Juan night (23 Jun) — bonfires on Zurriola and Concha beaches
- ↑Mountain hiking in Pyrenees foothills at perfect 18°C
| Factor | September | June |
|---|---|---|
| Weather score | 8 | 9 |
| Value score | 5 | 6 |
| Crowd score | 5 | 6 |
| Events score | 10 | 9 |
| Atmosphere | 10 | 10 |
| Avg high temp | 22°C | 21°C |
| Monthly rain | 95mm | 70mm |
| Daily sunshine | 6hrs | 7hrs |
September trade-offs
- ↓95mm rain — first proper autumn fronts arrive
- ↓Film Festival week hotel rates rival August in central Centro
June trade-offs
- ↓Last week of June Jazz Festival prep already pushes rates 20%
- ↓Spanish schools out by month-end — Madrid weekenders arriving
Scores compare months within San Sebastián. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →