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Santiago de Compostela, Spain climate

Csb Warm-summer Mediterranean

Santiago de Compostela has a mildly seasonal mild-temperate climate (Warm-summer Mediterranean, Köppen Csb). The hottest month is August with an average daily high near 75°F, while the coldest is January averaging around 42°F at night. Precipitation totals about 41 inches a year and is strongly seasonal — November alone averages 6.0 inches while July barely receives 1.21 inches.

☀️ Summers

Mild

Highs near 75°F in August.

About 2 days a year above 90 °F

❄️ Winters

Cool

Lows near 42°F in January.

About 10 freezing nights a year

🌧️ Rain

Wet

About 41 in of rain a year.

Wettest in November

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+1.0 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Santiago de Compostela climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	56	57	61	63	67	71	74	75	73	67	60	57
Avg temp (°F)	49	49	52	54	59	63	66	67	64	59	54	50
Avg low (°F)	42	42	44	46	51	55	58	59	56	52	47	44
Precipitation (in)	4.3	3.5	3.6	3.7	2.8	1.9	1.2	1.5	2.5	5.3	6.0	5.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	56	57	61	63	67	71
Avg temp (°F)	49	49	52	54	59	63
Avg low (°F)	42	42	44	46	51	55
Precipitation (in)	4.3	3.5	3.6	3.7	2.8	1.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	74	75	73	67	60	57
Avg temp (°F)	66	67	64	59	54	50
Avg low (°F)	58	59	56	52	47	44
Precipitation (in)	1.2	1.5	2.5	5.3	6.0	5.2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	16	13	14	15	13	9	8	8	11	15	17	16
Days with high ≥ 90°F (days)	—	—	—	0.0	0.1	0.4	0.5	0.3	0.2	0.1	—	—
Days with low ≤ 32°F (days)	4	3	0.8	0.1	—	—	—	—	—	—	0.3	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	16	13	14	15	13	9
Days with high ≥ 90°F (days)	—	—	—	0.0	0.1	0.4
Days with low ≤ 32°F (days)	4	3	0.8	0.1	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	11	15	17	16
Days with high ≥ 90°F (days)	0.5	0.3	0.2	0.1	—	—
Days with low ≤ 32°F (days)	—	—	—	—	0.3	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	77	74	71	71	69	64	61	60	63	71	76	76
Clear days (≤ 30% cloud)	2	3	4	3	3	4	5	5	4	3	2	3
Partly cloudy days (30–70%)	7	7	7	8	10	12	13	14	12	9	7	6
Cloudy days (≥ 70%)	22	19	20	18	18	14	13	12	14	19	21	22
Relative humidity (%)	88	86	84	82	81	79	77	76	78	82	87	88
Wind speed (mph)	3.6	3.6	3.5	3.3	2.9	2.7	2.6	2.7	2.8	3.1	3.5	3.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	77	74	71	71	69	64
Clear days (≤ 30% cloud)	2	3	4	3	3	4
Partly cloudy days (30–70%)	7	7	7	8	10	12
Cloudy days (≥ 70%)	22	19	20	18	18	14
Relative humidity (%)	88	86	84	82	81	79
Wind speed (mph)	3.6	3.6	3.5	3.3	2.9	2.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	60	63	71	76	76
Clear days (≤ 30% cloud)	5	5	4	3	2	3
Partly cloudy days (30–70%)	13	14	12	9	7	6
Cloudy days (≥ 70%)	13	12	14	19	21	22
Relative humidity (%)	77	76	78	82	87	88
Wind speed (mph)	2.6	2.7	2.8	3.1	3.5	3.6

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at A Coruna/alvedro, a weather station, about 49 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →