Weather in San Sebastian in December 2024
Average weather
Average temperature in San Sebastian in December
Going from a maximum of +70°F during the day to a minimum of +36°F during the night, the temperature in December averages around +61°F.
The average maximum temperature goes up 47% by the end of the month, compared with the beginning of the month, from +50°F to +66°F.
Is San Sebastian warm or cold in December?
San Sebastian is typically mild in December.
Maximum temperatures go down compared to the previous month from +59°F to +55°F. The minimum temperature also goes down from +50°F to +46°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in San Sebastian, here is the comparison with other months:
Climate in San Sebastian in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +59°F | +55°F | +54°F | ||||
| Min. temperature | ||||||
| +28°F | +21°F | +21°F | ||||
| Max. temperature | ||||||
| +84°F | +75°F | +73°F | ||||
| Rainfall | ||||||
| 187 mm | 158 mm | 159 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 77% | 76% | 77% | ||||
| Air pressure | ||||||
| 1016 HPa | 1019 HPa | 1020 HPa | ||||
| Sunny days | ||||||
| 6 | 6 | 5 | ||||
| Cloudy days | ||||||
| 11 | 13 | 14 | ||||
| Rainy days | ||||||
| 13 | 12 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +59°F in the day, the average maximum temperature lowers to +55°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 187 mm to 158 mm. It feels drier, as humidity decreases from 77% to 76%. The average wind speed doesn’t change much during December, staying around 2 m/s. The amount of sunny days stay about the same, averaging 6 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Sebastian is gradually increasing during December, going from 1 m/s to 4 m/s over the course of the month.
Rain
How was the weather last December in San Sebastian?
Climate Change Over the Years
The climate in San Sebastian in December has not changed that much over the last 43 years.
The average temperature was the lowest in 2005 (+51°F) and the highest in 2015 (+66°F). The driest year was 2015 with only 12 mm of rainfall, and the wettest year was 2020 with 955 mm.
FAQ
Is December a good time to visit San Sebastian?
Can you sunbathe in San Sebastian in December?
Is San Sebastian rainy in December?
Is it sunny in San Sebastian in December?
Other cities in Spain
Monthly weather in San Sebastian
Source of the data
For this page, we’ve looked at the typical weather in San Sebastian, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.