San Sebastián weather in December
San Sebastián in December averages 10°C (50°F), 179 mm of rain and 2.4 hours of sun a day. It is one of the wetter months of the year here.
Of the twelve months in San Sebastián, December is the third coldest, the second wettest and the dullest.
- Average temp
- 10°C (50°F)
6–14°C · 43–57°F
- Rainfall
- 179 mm
A wet month
- Sunshine
- 2.4 h
hours per day
What is San Sebastián like in December?
Daytime
Days are cool.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for San Sebastián in December?
A proper waterproof, not a folding umbrella
179 mm in the month usually arrives as heavy bursts that an umbrella will not cover.
A dry bag for phone and documents
Worth it for one downpour caught between the taxi and the door.
A warm mid-layer
Nights drop to around 6°C (43°F).
December compared with November and January
December in San Sebastián is 2.3°C cooler than November and 46 mm drier than it, which averages 12°C (54°F).
December in San Sebastián is 0.7°C warmer than January and 13 mm wetter than it, which averages 9°C (48°F).
Daylight in San Sebastián in December
On 15 December the sun is up for 8 hours 59 minutes in San Sebastián, rising about 08:33 and setting about 17:32 local time.
December ends 10 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
No month in San Sebastián has less daylight than December.
Where to stay in San Sebastián
Dates are a starting point for December.
Travel guides for San Sebastián
What to read before you book.
San Sebastián weather by month
TemperatureRainfall
How December compares with the rest of the year
December is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 9°C / 48°F | 166 mm |
| February | 10°C / 49°F | 143 mm |
| March | 12°C / 54°F | 127 mm |
| April | 13°C / 56°F | 147 mm |
| May | 17°C / 62°F | 133 mm |
| June | 19°C / 67°F | 106 mm |
| July | 21°C / 70°F | 97 mm |
| August | 22°C / 71°F | 110 mm |
| September | 20°C / 67°F | 146 mm |
| October | 17°C / 62°F | 166 mm |
| November | 12°C / 54°F | 224 mm |
| December | 10°C / 50°F | 179 mm |
Similar weather in December
Other destinations whose December averages sit close to this one.
Check another month
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FAQs about San Sebastián in December
December climate averages for San Sebastián, 1991–2020.
San Sebastián averages 10°C (50°F) in December, ranging from about 6°C (43°F) at night to 14°C (57°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. December brings about 179 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
Yes. December averages 10°C (50°F) against 9°C (48°F) in January — 0.7°C warmer.
December is 2.3°C cooler than November, and 46 mm drier.
It is outside the easiest window. The most comfortable stretch here is May to October; December sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 2.4 hours of sun a day on the 1991–2020 average, so daylight is short on useful sun.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what December is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 8 hours 59 minutes of daylight in mid-December, the least of any month in San Sebastián.
On 15 December, sunrise is about 08:33 and sunset about 17:32 local time. Both shift across the month — the month ends 10 minutes shorter than it starts.
