Santiago de Compostela in Summer
In summer (June, July and August), Santiago de Compostela sees average daytime highs around 22°C and overnight lows near 13°C, with 128 mm of rain over about 22 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 19°C in early June to 22°C by late August. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels comfortable.
Summer is Santiago de Compostela's best season of the year to visit on our travel score. For the whole year in context, see Santiago de Compostela's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 128 mm
- 22 wet days
- Avg wind
- 13 km/h
- Travel score
- 7.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Santiago de Compostela in Summer
Over the season highs climb from about 19°C in early June to 22°C by late August.
A typical summer day in Santiago de Compostela reaches about 22°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.
Santiago de Compostela weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 11° / 6° | 141 | 13.9 | 9.2 | 2.5 |
| Feb | 12° / 6° | 100 | 11.6 | 10.2 | 3.0 |
| Mar | 14° / 7° | 106 | 12.1 | 11.6 | 3.9 |
| Apr | 15° / 8° | 115 | 14.4 | 13.1 | 4.1 |
| May | 18° / 10° | 92 | 13.1 | 14.4 | 5.2 |
| Jun | 20° / 12° | 54 | 8.7 | 15.1 | 6.5 |
| Jul | 22° / 14° | 30 | 5.9 | 14.8 | 7.5 |
| Aug | 23° / 14° | 44 | 7.2 | 13.8 | 7.4 |
| Sep | 21° / 13° | 69 | 9.1 | 12.3 | 6.7 |
| Oct | 18° / 11° | 140 | 13.5 | 10.8 | 5.2 |
| Nov | 14° / 8° | 151 | 15.3 | 9.5 | 3.5 |
| Dec | 12° / 6° | 142 | 13.8 | 8.9 | 2.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
Santiago de Compostela gets around 128 mm of rain over 22 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 54 min in early June to 13 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.0 kWh/m².
Is summer a good time to visit Santiago de Compostela?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Santiago de Compostela for general sightseeing.
What to pack for Santiago de Compostela in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santiago de Compostela sees daytime highs around 22°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 22 days see rain.
Sea temperature near Santiago de Compostela in Summer
The nearest coast averages about 17°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 47 km away) is warmest in August at about 17°C and coldest in February near 13°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 13 | 14 | 15 | 16 | 17 | 17 | 17 | 16 | 15 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 14 | Bracing |
| May | 15 | Bracing |
| Jun | 16 | Cool |
| Jul | 17 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 16 | Cool |
| Nov | 15 | Cool |
| Dec | 14 | Bracing |
UV index in Santiago de Compostela in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santiago de Compostela peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 5 | 6 | 7 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Santiago de Compostela?
Santiago de Compostela sits at 42.9°N, 8.5°W, 257 m above sea level, in Spain. The nearest listed city is Teo, 10 km away.
Topography around Santiago de Compostela
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santiago de Compostela.
Within 3 km, the terrain around Santiago de Compostela has significant variations in elevation — a maximum elevation change of 332 m around an average of 265 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 519 m; within 80 km, large variations in elevation — a maximum elevation change of 1,174 m.
The land around Santiago de Compostela is covered by trees (48%), artificial surfaces (29%) and grassland (22%) within 3 km, trees (64%) and grassland (24%) within 16 km, and trees (45%), water (30%) and grassland (21%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Santiago de Compostela (42.8805°, -8.5457°, elevation 257 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.