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San Sebastian weather in December

Weather in San Sebastian: December

Average day temperature: 54.7°F
Average night temperature: 46.5°F
Sea water temperature: 57.4°F
Number of sunny days: 11 days
Day length: 9.0 - 9.2 hours
Number of rainy days: 6 days
Precipitation totals: 3.7 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
11
22
33
44
55
66
77
88
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 66°F. At the same time the lowest night temperature was 35°F. Day and night temperature averages during December were 53.1°F and 45.5°F.

Sea water temperature in San Sebastian in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
50
53
56
59
62
65

The average sea water temperature in December of 2024 was 57.2°F. The highest and lowest sea temperatures during the month were 59.0°F and 54.5°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
29%
26%
45%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.9
1.8
2.7
3.6
4.5
5.4
6.4
7.3
5.3
3.0
2.1
1.8
1.7
3.0
2.7
2.9
3.5
3.9
4.8
4.3
5.3
3.0
2.1
1.8
1.7
3.0
2.7
2.9
3.5
3.9
4.8

Precipitation total value in San Sebastian in December is 4.3 in. Other months of the year show relatively similar values.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.8
4.2
5.5
6.9
8.3
9.7
7.6
6.3
5.7
5.2
5.2
5.3
6.1
7.0
8.1
7.6
7.7
7.5
7.6
6.3
5.7
5.2
5.2
5.3
6.1
7.0
8.1
7.6
7.7

The average wind speed value in December is 7.5 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.8
4.2
5.6
7.1
8.5
9.9
4.1
6.6
7.1
7.7
8.2
7.0
7.1
6.7
5.6
5.3
4.4
4.4
4.1
6.6
7.1
7.7
8.2
7.0
7.1
6.7
5.6
5.3
4.4

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.4.

Best time for vacation in San Sebastian

Sunniest months:
August 16 days
September 15 days
October 14 days
Warmest months:
August 76.7 °F
July 74.8 °F
September 73.7 °F
Warmest sea temp:
August 72.6 °F
July 71.1 °F
September 70.3 °F
Coldest months:
January 51.6 °F
February 53.2 °F
December 54.7 °F
Rainiest months:
November 9 days
February 8 days
January 8 days
Windiest months:
February 8.9 mph
December 8.8 mph
November 8.7 mph

San Sebastian on a weather map

Leaflet | Tiles © Esri
Places in Spain:
Name
°F
+63°F
+54°F
+63°F
+68°F
+61°F
+66°F
+52°F
+72°F
+59°F
+64°F
+59°F
+64°F
+70°F
24 Hours Forecast
San Sebastian
Local time: 15:55
February 15, saturday
1800
57°F
N
6 mph
2100
52°F
N
7 mph
February 16, sunday
0000
50°F
N
8 mph
0300
48°F
N
9 mph
0600
48°F
N
7 mph
0900
52°F
N
5 mph
1200
63°F
E
2 mph
1500
61°F
SE
5 mph
Units of measurement: °C / °F