Santander weather in August

In August, Santander sees average daytime highs of 23°C and overnight lows near 18°C, with 60 mm of rain across 10.3 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Santander's 1st-clearest and 12th-windiest month. For the whole year in context, see Santander's year-round climate.

Daytime high
23°
1st warmest
Overnight low
18°
12th coldest
Rainfall
60 mm
10.3 wet days
Daylight
13 h 48 min
6:25 AM – 8:13 PM
Cloud cover
54%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
5.32 kWh/m²
Travel score
6.9
out of 10

Santander is city in Spain.

Air quality
Good
PM10 22.5 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical August day in Santander reaches about 23°C in the afternoon and slips back to 18°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12318
22318
32318
42318
52318
62318
72318
82318
92318
102318
112318
122318
132318
142318
152318
162318
172318
182318
192318
202318
212318
222318
232318
242318
252318
262218
272218
282218
292218
302218
312218

Santander weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 11514.69.12.8
Feb12° / 10312.910.22.9
Mar14° / 10412.911.63.6
Apr15° / 10°10314.813.23.9
May17° / 13°8614.114.55.0
Jun20° / 16°6810.915.26.1
Jul22° / 18°5410.314.96.7
Aug23° / 18°6010.313.86.9
Sep21° / 17°7811.312.36.3
Oct19° / 14°10913.310.85.5
Nov15° / 11°15015.89.53.9
Dec13° / 11413.98.83.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45545
55644
65545
75644
85644
95743
105644
115644
125644
135644
145545
155545
165446
175446
185347
195347
205248
215248
225149
235149
245248
255149
265149
275248
285248
295248
305347
315347

Chance of precipitation in August

Any precipitation

Santander gets around 60 mm of rain over 10.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
134
234
334
434
534
634
733
833
933
1032
1132
1231
1331
1431
1531
1631
1731
1831
1931
2031
2132
2232
2332
2432
2532
2632
2732
2832
2933
3033
3133

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
112055222
212154222
312154222
412253222
512352222
622351222
722350223
822450223
922449222
1022449232
1122548232
1222548232
1322547242
1422547242
1522547252
1622546251
1722546261
1822546261
1922646261
2022645271
2122645271
2222744271
2322744261
2422843260
2532943250
2632943240
2733042240
2843142230
2943241220
3053341220
3153340210

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 6:09 AM to 6:42 AM, and sunset from 8:34 PM to 7:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.46:098:34
214.46:108:33
314.36:118:32
414.36:128:30
514.36:138:29
614.26:148:28
714.26:158:26
814.16:168:25
914.16:178:24
1014.16:188:22
1114.06:208:21
1214.06:218:19
1313.96:228:18
1413.96:238:16
1513.86:248:15
1613.86:258:13
1713.86:268:12
1813.76:288:10
1913.76:298:09
2013.66:308:07
2113.66:318:05
2213.56:328:04
2313.56:338:02
2413.46:348:00
2513.46:367:59
2613.36:377:57
2713.36:387:55
2813.26:397:53
2913.26:407:52
3013.16:417:50
3113.16:427:48

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.32 kWh/m².

For context, solar energy here swings from a low near 1.43 kWh/m² to a high of 6.1 kWh/m² in June across the year — August's 5.32 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Santander?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.9
Sightseeing
1st-best month of the year
5.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Santander for sightseeing.

What to pack for Santander in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Santander sees daytime highs around 23°C and nights near 18°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Santander in August

The nearest coast averages about 22°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 22°C and coldest in February near 13°C.

It's comfortable for a long swim from Jul 13 to Sep 21 — about 2.3 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb13Bracing
Mar13Bracing
Apr13Bracing
May15Cool
Jun18Cool
Jul20Refreshing
Aug22Refreshing
Sep20Refreshing
Oct18Cool
Nov16Cool
Dec14Bracing

UV index in Santander in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santander peaks around July 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Santander?

Santander sits at 43.5°N, 3.8°W, 1 m above sea level, in Spain. The nearest listed city is El Astillero, 7.0 km away.

Topography around Santander

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santander.

Within 3 km, the terrain around Santander has only modest variations in elevation — a maximum elevation change of 82 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 562 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,293 m.

The land around Santander is covered by water (38%), artificial surfaces (32%) and grassland (23%) within 3 km, water (49%) and grassland (24%) within 16 km, and water (38%), trees (32%) and grassland (25%) within 80 km.

3 km
82 m
16 km
562 m
80 km
2,293 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: El Astillero 7.0 km · Camargo 9.0 km · Torrelavega 24 km · Castro-Urdiales 48 km · Santurtzi 64 km · Getxo 65 km · Portugalete 65 km · Algorta 66 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
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Santander (43.4659°, -3.8049°, elevation 1 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).