When to go · San Sebastián
San Sebastián in September
Great month. Inside San Sebastián's best window: Jun–Sep for beach weather; May and Sep–Oct for fewer crowds and comfortable walking.
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 10
- Crowds
- Medium
- Spain overall
- Prices
- Medium
- Spain overall
Verdict
Inside San Sebastián's best window: Jun–Sep for beach weather; May and Sep–Oct for fewer crowds and comfortable walking.
Is another month better than September?
No other month rates higher than September for San Sebastián in this guide.
Weather in September
- San SebastiánHighs around 24 °C (75 °F), lows around 15 °C (59 °F), rain on about 10 daysHighs around 75 °F (24 °C), lows around 59 °F (15 °C), rain on about 10 days
- Green north, Spain · San Sebastián, Bilbao, Santander, Asturias, Galiciabest weather
Atlantic weather: green because it rains. The best escape from summer heat; pack a rain jacket in any month.
Crowds and prices
- Crowds · Spain overall
- Medium
- Prices · Spain overall
- Medium
Spain overall: Sea still warm, crowds thinning after the first week; grape harvest in La Rioja.
Compare two months
Weather, crowds and prices for any two months in San Sebastián, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
May: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 15 °C (59 °F)59 °F (15 °C)
May: 11 °C (52 °F)52 °F (11 °C)
Rain days
Sep: 10 (better)
May: 12
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 0
May: 0
September: Inside San Sebastián's best window: Jun–Sep for beach weather; May and Sep–Oct for fewer crowds and comfortable walking.
May: Inside San Sebastián's best window: Jun–Sep for beach weather; May and Sep–Oct for fewer crowds and comfortable walking.
San Sebastián: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast