Late summer · Weather & things to do
San Sebastián in August
San Sebastián's warmest month brings highs averaging 75°F (24°C), lows of 66°F (19°C) and about 2.0 in (51 mm) of rain.
At 82/100 for comfort (the top score of the year), it's one of the best months to visit.
- Avg high
- 75°F (24°C)
- Avg low
- 66°F (19°C)
- Rain
- 2.0 in (51 mm)
- Humidity
- 77%
- Cloud cover
- 64%
- Daylight
- ~13 h 47 min
- Comfort score
- 82/100 · Great
What August feels like
Days are warm, averaging 75°F (24°C).
After dark, temperatures fall to about 66°F (19°C).
Humidity averages 77%, so the air feels sticky and the heat feels stronger than the thermometer says.
Rain is moderate at about 2.0 in (51 mm) for the month.
Plan around August
August is one of San Sebastián's best months on the climate data.
- Comfort holds steady from July (81 → 82/100).
- August sits inside the May – Oct window our Basque Coast Food Trail route recommends.
What to pack for August
- Light, breathable clotheshighs average 75°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Quick-dry fabrics77% average humidity
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in San Sebastián in August
August is good outdoor weather here, so these picks lean toward the open air.
Monte Urgull
Wooded hill over the old town with a castle, a statue of Christ and bay views.
Why now August scores 82/100 for comfort, good conditions for being outside.
La Concha Beach
Shell-shaped city beach with a long promenade and calm water.
Why now Highs near 75°F and 2.0 in of monthly rain make this an easy outdoor pick.
La Cuchara de San Telmo
Hot pintxos cooked to order, including foie gras and slow-cooked meats.
Bar Nestor
Tiny bar known for its tortilla, made only twice a day, and steaks.
Txomin Etxaniz
Long-standing txakoli winery in Getaria with vineyards above the sea.
Nearby in August
- Bilbao in August~48 mi · highs 75°F, 1.4 in rain · similar daytime temperatures, drier
- Laguardia in August~61 mi · highs 82°F, 1.0 in rain · 4°C (7°F) warmer by day, drier
- Barcelona in August~250 mi · highs 88°F, 1.6 in rain · 7°C (13°F) warmer by day, about as wet
- Girona in August~261 mi · highs 83°F, 1.5 in rain · 4°C (7°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
San Sebastián in August: quick answers
Is August a good time to visit San Sebastián?
Yes. On the climate data it's one of the best months, scoring 82/100. Expect highs of 75°F (24°C) and 2.0 in (51 mm) of rain. August is inside the May – Oct window our Basque Coast Food Trail route recommends.
How hot is San Sebastián in August?
Average highs are 75°F (24°C) and average lows 66°F (19°C), making it the warmest month by daytime highs.
Does it rain a lot in San Sebastián in August?
Not much: about 2.0 in (51 mm) of rain falls across August on average, the 2nd-driest month of the year. The annual total is about 42.1 in (1070 mm).
What should I pack for San Sebastián in August?
Bring light, breathable clothes (highs average 75°F), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (77% average humidity) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on San Sebastián
Routes in season in August
- Basque Coast Food Trail May – Oct
Planning San Sebastián in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.