San Sebastian weather by month

Check out San Sebastian weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in San Sebastian (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
11°C maximum daytime temperature in January in San Sebastian11
12°C maximum daytime temperature in February in San Sebastian12
14°C maximum daytime temperature in March in San Sebastian14
15°C maximum daytime temperature in April in San Sebastian15
18°C maximum daytime temperature in May in San Sebastian18
21°C maximum daytime temperature in June in San Sebastian21
24°C maximum daytime temperature in July in San Sebastian24
24°C maximum daytime temperature in August in San Sebastian24
23°C maximum daytime temperature in September in San Sebastian23
19°C maximum daytime temperature in October in San Sebastian19
14°C maximum daytime temperature in November in San Sebastian14
12°C maximum daytime temperature in December in San Sebastian12
Min temperature (night-time)
4°C minimum night-time temperature in January in San Sebastian4
5°C minimum night-time temperature in February in San Sebastian5
6°C minimum night-time temperature in March in San Sebastian6
7°C minimum night-time temperature in April in San Sebastian7
10°C minimum night-time temperature in May in San Sebastian10
13°C minimum night-time temperature in June in San Sebastian13
15°C minimum night-time temperature in July in San Sebastian15
15°C minimum night-time temperature in August in San Sebastian15
14°C minimum night-time temperature in September in San Sebastian14
11°C minimum night-time temperature in October in San Sebastian11
7°C minimum night-time temperature in November in San Sebastian7
5°C minimum night-time temperature in December in San Sebastian5
Heat & Humidity
No heat & humidity in January in San Sebastian0
No heat & humidity in February in San Sebastian0
No heat & humidity in March in San Sebastian0
No heat & humidity in April in San Sebastian0
No heat & humidity in May in San Sebastian0
No heat & humidity in June in San Sebastian0
No heat & humidity in July in San Sebastian0
Low heat & humidity in August in San SebastianL
No heat & humidity in September in San Sebastian0
No heat & humidity in October in San Sebastian0
No heat & humidity in November in San Sebastian0
No heat & humidity in December in San Sebastian0
Sea temperature
13°C sea temperature in January in San Sebastian13
12°C sea temperature in February in San Sebastian12
12°C sea temperature in March in San Sebastian12
13°C sea temperature in April in San Sebastian13
16°C sea temperature in May in San Sebastian16
19°C sea temperature in June in San Sebastian19
21°C sea temperature in July in San Sebastian21
22°C sea temperature in August in San Sebastian22
21°C sea temperature in September in San Sebastian21
18°C sea temperature in October in San Sebastian18
16°C sea temperature in November in San Sebastian16
14°C sea temperature in December in San Sebastian14

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in San Sebastian

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in San Sebastian9
11 hours of daylight per day in February in San Sebastian11
12 hours of daylight per day in March in San Sebastian12
13 hours of daylight per day in April in San Sebastian13
15 hours of daylight per day in May in San Sebastian15
15 hours of daylight per day in June in San Sebastian15
15 hours of daylight per day in July in San Sebastian15
14 hours of daylight per day in August in San Sebastian14
12 hours of daylight per day in September in San Sebastian12
11 hours of daylight per day in October in San Sebastian11
10 hours of daylight per day in November in San Sebastian10
9 hours of daylight per day in December in San Sebastian9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in San Sebastian1
UV (maximum) index 2 (Low) in February in San Sebastian2
UV (maximum) index 4 (Moderate) in March in San Sebastian4
UV (maximum) index 6 (High) in April in San Sebastian6
UV (maximum) index 7 (High) in May in San Sebastian7
UV (maximum) index 8 (Very High) in June in San Sebastian8
UV (maximum) index 8 (Very High) in July in San Sebastian8
UV (maximum) index 7 (High) in August in San Sebastian7
UV (maximum) index 5 (Moderate) in September in San Sebastian5
UV (maximum) index 4 (Moderate) in October in San Sebastian4
UV (maximum) index 2 (Low) in November in San Sebastian2
UV (maximum) index 1 (Low) in December in San Sebastian1

Rainfall in San Sebastian

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
18 days with some rainfall in January in San Sebastian18
16 days with some rainfall in February in San Sebastian16
17 days with some rainfall in March in San Sebastian17
18 days with some rainfall in April in San Sebastian18
17 days with some rainfall in May in San Sebastian17
13 days with some rainfall in June in San Sebastian13
12 days with some rainfall in July in San Sebastian12
13 days with some rainfall in August in San Sebastian13
13 days with some rainfall in September in San Sebastian13
14 days with some rainfall in October in San Sebastian14
17 days with some rainfall in November in San Sebastian17
17 days with some rainfall in December in San Sebastian17
Average monthly rainfall (mm)
127 mm monthly rainfall in January in San Sebastian127
103 mm monthly rainfall in February in San Sebastian103
103 mm monthly rainfall in March in San Sebastian103
122 mm monthly rainfall in April in San Sebastian122
107 mm monthly rainfall in May in San Sebastian107
77 mm monthly rainfall in June in San Sebastian77
62 mm monthly rainfall in July in San Sebastian62
90 mm monthly rainfall in August in San Sebastian90
97 mm monthly rainfall in September in San Sebastian97
121 mm monthly rainfall in October in San Sebastian121
143 mm monthly rainfall in November in San Sebastian143
133 mm monthly rainfall in December in San Sebastian133

More about San Sebastian

San Sebastian by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Spain

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The climate guide for Spain (San Sebastian) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in San Sebastian?

San Sebastian has a temperate climate with warm summers and some rainfall in all months.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Spain

Compare San Sebastian with the UK

Below the San Sebastian chart shows average maximum daytime temperature for San Sebastian, Spain and the UK (London).

Maximum daytime temperature (°C)

San Sebastian, Spain
UK (London)
11
7
12
7
14
10
15
13
18
17
21
20
24
22
24
22
23
19
19
15
14
10
12
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more San Sebastian weather >>

Back to top

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^