Alcalá de Henares weather in August

In August, Alcalá de Henares sees average daytime highs of 32°C and overnight lows near 17°C, with 13 mm of rain across 2.7 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 76% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Alcalá de Henares's 2nd-clearest and 7th-windiest month. For the whole year in context, see Alcalá de Henares's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
17°
11th coldest
Rainfall
13 mm
2.7 wet days
Daylight
13 h 36 min
6:29 AM – 8:06 PM
Cloud cover
25%
2nd clearest
Wind
9 km/h
7th windiest
Solar energy
6.85 kWh/m²
Travel score
5.0
out of 10

Alcalá de Henares is capital of Alcalá de Henares Municipality, Spain.

Air quality
Moderate
PM2.5 12.5 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

Highs ease over the month, from about 33°C in the first days to 31°C by the end.

A typical August day in Alcalá de Henares reaches about 32°C in the afternoon and slips back to 17°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 36°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13318
23318
33318
43318
53318
63318
73318
83318
93318
103318
113318
123318
133218
143218
153218
163218
173217
183217
193217
203217
213217
223217
233217
243117
253117
263117
273117
283116
293116
303016
313016

How August really feels in Alcalá de Henares

Once humidity and wind are folded in, August averages 18 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
18
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Alcalá de Henares weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 427.70.89.42.3
Feb12° / 356.30.910.43.5
Mar16° / 447.70.311.75.3
Apr18° / 568.70136.1
May23° / 10°508.5014.27.1
Jun29° / 15°234014.86.8
Jul33° / 18°81.8014.64.8
Aug32° / 17°132.7013.65.0
Sep27° / 14°284.5012.37.5
Oct20° / 648.3010.96.6
Nov14° / 588.10.19.74.2
Dec10° / 477.70.59.22.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4919
59010
69010
79010
89010
98911
108911
118911
128911
138911
148911
158911
168911
178911
188911
198911
208812
218812
228812
238812
248812
258812
268614
278614
288614
298614
308416
318416

Chance of precipitation in August

Any precipitation

Alcalá de Henares gets around 13 mm of rain over 2.7 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 8% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
17
27
37
47
58
68
78
88
98
108
118
128
138
148
158
168
178
189
199
209
219
229
239
249
259
269
279
289
299
309
319

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19460
29370
39370
49271
59271
69181
79181
89181
99181
109181
119091
129091
139091
149091
159190
169190
179190
189190
1990100
2090100
2190100
2290100
2390100
2490100
2590100
2689101
2789101
2889101
2989101
3089101
3189101

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 12 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 6:14 AM to 6:44 AM, and sunset from 8:25 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.26:148:25
214.16:158:24
314.16:168:23
414.16:178:22
514.06:188:20
614.06:198:19
714.06:208:18
813.96:218:17
913.96:228:16
1013.96:238:14
1113.86:248:13
1213.86:258:12
1313.76:268:10
1413.76:278:09
1513.76:288:08
1613.66:298:06
1713.66:308:05
1813.56:318:03
1913.56:328:02
2013.56:338:00
2113.46:347:59
2213.46:357:57
2313.36:367:56
2413.36:377:54
2513.26:387:53
2613.26:397:51
2713.26:407:50
2813.16:417:48
2913.16:427:46
3013.06:437:45
3113.06:447:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.85 kWh/m².

For context, solar energy here swings from a low near 1.81 kWh/m² to a high of 7.77 kWh/m² in July across the year — August's 6.85 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.4Intense
37.4Intense
47.3Intense
57.3Intense
67.3Intense
77.2Intense
87.2Intense
97.1Intense
107.1Intense
117.0Intense
127.0Intense
137.0Intense
146.9Intense
156.9Intense
166.8Intense
176.8Intense
186.8Intense
196.7Intense
206.7Intense
216.7Intense
226.6Intense
236.6Intense
246.5Intense
256.5Intense
266.4Intense
276.4Intense
286.3Intense
296.3Intense
306.2Intense
316.2Intense
Planning a trip in August

Is August a good time to visit Alcalá de Henares?

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

5.0
Sightseeing
7th-best month of the year
8.1
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Alcalá de Henares for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Alcalá de Henares in August

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

In August, Alcalá de Henares sees daytime highs around 32°C and nights near 17°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Alcalá de Henares in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alcalá de Henares peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 15UV 10Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb2Moderate
Mar6High
Apr7High
May7High
Jun9Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Alcalá de Henares in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Alcalá de Henares is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Alcalá de Henares's WHO annual average of 12.5 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodMar 1715 µg/m³Nov 1910 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr14Moderate
May11Good
Jun12Good
Jul12Good
Aug13Moderate
Sep12Moderate
Oct13Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Alcalá de Henares?

Alcalá de Henares sits at 40.5°N, 3.4°W, 597 m above sea level, in Spain. The nearest listed city is Torrejón de Ardoz, 10 km away.

Topography around Alcalá de Henares

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

Within 3 km, the terrain around Alcalá de Henares has significant variations in elevation — a maximum elevation change of 279 m around an average of 609 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,961 m.

The land around Alcalá de Henares is covered by artificial surfaces (42%), trees (24%) and grassland (24%) within 3 km, cropland (53%) and grassland (24%) within 16 km, and cropland (38%), grassland (29%) and trees (25%) within 80 km.

3 km
279 m
16 km
375 m
80 km
1,961 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Torrejón de Ardoz 10 km · Azuqueca de Henares 12 km · Mejorada del Campo 14 km · San Fernando de Henares 16 km · Algete 17 km · Coslada 18 km · Rejas 18 km · Barajas de Madrid 18 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 Alcalá de Henares (40.4821°, -3.36°, elevation 597 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).