Month-by-month travel weather
San Sebastian December weather
San Sebastian, Spain · December
Waterproof + layers is essentially the default setup
December leans into winter with frequent wet days. Comfort can drop quickly when wind and dampness combine.
Short daylight means evenings cool fast—add one extra warmth step if you stay out late.
December averages at a glance
Average low
around 7–9°C
Average high
around 12–14°C
Average rainfall
around 140–210 mm
Rainy days
about 12–18 days
What to wear in December in San Sebastian
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Hooded waterproof coat/jacket works well.
- • Layers + light warmth help after sunset.
- • Shoe traction helps on wet streets.
Travel tips for visiting San Sebastian in December
- • Use hourly forecasts to catch dry windows.
- • Keep electronics protected with a pouch/zip bag.
December weather in San Sebastian — FAQ
Q. Is December hard for sightseeing?
A. Rain can be frequent, but indoor anchors keep the day workable.
Q. What matters most in December packing?
A. Waterproof outerwear/shoes and flexible layering.
Explore San Sebastian
These pages are connected so you can compare conditions and decide for yourself.