Spain
San Sebastián in September
🍂 AutumnPleasant and often rainy.
🎒 Pack: compact umbrella or rain jacket
Why September scores 9.1What goes into the score
How it works- Weather comfort8.7
- ✓Comfortable temperatures (24°C highs / 15°C lows)
- ✓Slightly humid (dew point 15.1°C)
- !Wet: ~143 mm rain, ~5 heavy-rain days
- Air quality10.0
- ✓Good (within WHO guideline) (PM2.5 ~4 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline7.5
- ·Increased caution
| Sep | Jul | |
|---|---|---|
| Score | 9.1 Excellent | 9.3 Excellent |
| Season | 🍂 Autumn | ☀️ Summer |
| High / low | 24° / 15° | 25° / 18° |
| Rain | 143 mm | 92 mm |
| Humidity | dew pt 15° | dew pt 17° |
| PM2.5 | 4 µg/m³ | 6 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: San Sebastián Airport weather-station normals. Rainfall: San Sebastián Airport weather-station normals (national met service).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Spain this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore San SebastiánEvents, sights, food & souvenirs
Check event dates locallyBasque coastal city in northern Spain, known for La Concha bay, pintxos bars in the Old Town and a high concentration of Michelin-starred restaurants.
San Sebastián International Film FestivalDate variesUsually second half of September
A major international film festival.
Why go: Hotels fill up.
Where: Kursaal and cinemas
La Concha RegattaDate variesUsually the first two Sundays of September
Traditional Basque rowing boat races.
Why go: Crowds watch from the promenade.
Where: La Concha Bay
Coming up later
TamborradaEvery year20 January every year
24 hours of drumming for the city's patron saint, starting at midnight.
Why go: Children's drum groups parade during the day.
Where: Citywide
JazzaldiaDate variesUsually late July
A long-running jazz festival.
Why go: Some concerts are free.
Where: Citywide
Semana Grande (Aste Nagusia)Date variesUsually the week of 15 August
A festival week with an international fireworks competition over the bay.
Why go: Busy and expensive.
Where: Citywide
La Concha Beach
A curved city beach on a sheltered bay.
Monte Igueldo
A hill with a historic funicular, a small amusement park and views over the bay.
Monte Urgull
A wooded hill with a castle and views.
Parte Vieja
The old town, packed with pintxos bars.
Peine del Viento
Steel sculptures by Eduardo Chillida set into rocks at the end of Ondarreta beach.
Zurriola Beach
A beach in the Gros district popular with surfers.
Pintxos
Small bites, often on bread, displayed on the bar.
💡 Parte Vieja and Gros bars
Gilda
A pintxo of anchovy, olive and pickled pepper, invented in the city.
💡 Pintxos bars
Txakoli
A light, slightly sparkling white wine poured from a height.
💡 Bars
Basque cheesecake
A burnt-top cheesecake.
💡 La Viña in the Old Town
Txuleta
Thick grilled beef steak.
💡 Grill restaurants and cider houses
Txakoli
Basque white wine.
💡 Wine shops
Idiazabal cheese
A Basque sheep's milk cheese, often smoked.
💡 Delis and markets
Txapela
The Basque beret.
💡 Hat shops
Canned anchovies
Cantabrian anchovies.
💡 Delis