San SebastianSpain · Europe · December

December climate

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December in San Sebastian

Spain · Europe

Cool days.

Some tradeoffs

Mid to late

Daytime high

55°F

Lows around 47°F

Rain

Frequent rain

Sun

2.5 h/day

Air feel

Very dry

Sea temp

57°F

Too cold for swimming

When to visit

Month-by-month fit

Best

Switch month

Temperature

Cool by day, brisk at night.

55°Ftypical December high

Typical range

Precipitation

Rain is frequent. About 15 wet days this month.

48%wet-day frequency

AmountWet-day chance

Sunshine

Sunshine is limited, with cloud often dominating.

2.7 hDecember sunshine

Heat & humidity by month

Very dryDecember Heat feel

Easy airWarm airHumid airVery humid air

Hourly temperature pattern

In December, afternoons feel about 49° and nights feel near 43°.

Very coldColdCoolComfortableWarmNight hours

Clear sky

Mostly cloudy skies this month.

30%December Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in December.

9 mphDecember Light breeze

Sea temperature

57°FDecember sea temp

More detailIncludes daypart comfort

Typical December day

December late afternoons are around 55°F, easing to about 52°F in early evening.

Avg temp Typical range

Morning50°F

Rain31%

Cloud72%

Humid airLow

Sun intensityMinimal

Midday54°F

Rain29%

Cloud69%

Humid airLow

Sun intensityLow

Best window

Late afternoon54°F

Rain31%

Cloud69%

Humid airLow

Sun intensityLow

Early evening52°F

Rain32%

Cloud69%

Humid airLow

Sun intensityMinimal

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Similar climates

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.

Sunshine: source type is not yet identified at metric level.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 1, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Sea°F

Jan

5.7

2.8

Feb

4.9

3.3

Mar

4.6

4.1

Apr

4.6

4.2

May

4.5

5.4

Jun

3.9

6.1

Jul

3.1

6.3

Aug

3.6

5.9

Sep

3.8

5.4

Oct

4.8

4.3

Nov

7.3

3.4

Dec

5.5

2.7

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	54	46	5.7	16	2.8	80	55
Feb	55	46	4.9	14	3.3	78	54
Mar	59	49	4.6	15	4.1	76	54
Apr	62	51	4.6	16	4.2	78	56
May	66	56	4.5	16	5.4	80	59
Jun	72	61	3.9	13	6.1	82	65
Jul	75	64	3.1	13	6.3	82	69
Aug	76	65	3.6	13	5.9	82	71
Sep	73	62	3.8	13	5.4	80	69
Oct	68	58	4.8	13	4.3	79	65
Nov	60	51	7.3	17	3.4	80	60
Dec	55	47	5.5	15	2.7	80	57