Temperature
Pleasant by day, mild at night.
74°Ftypical Aug high
San Sebastian
Spain · Europe
San Sebastian is most comfortable in summer and early autumn. Summers are warm and winters are cool. Humidity is usually low.
Best time to go
12 mo · Typical year
Temperature range
44°F to 74°F
Rain
12 days/mo
Sunshine
4.5 h/day
Humidity feel
Generally dry
When to visit
Month-by-month fit
Precipitation
Fewer rainy days than in most months here, though showers remain frequent.
42%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
5.9 hAug sunshine
Heat & humidity by month
It rarely feels hot, though humidity can be noticeable during rainy periods.
LowAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
70°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
44%Aug clear sky
ClearCloud cover
Similar
Similar things to doCapriItalySimilar things to doPorto CervoItalySimilar things to doHvarCroatiaSimilar things to doSaint-TropezFrance
Want a side-by-side climate view? Compare San Sebastian with Capri.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology