Illescas weather in May

In May, Illescas sees average daytime highs of 24°C and overnight lows near 12°C, with 45 mm of rain across 8 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 26°C by the end. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Illescas's 6th-clearest and 4th-windiest month. For the whole year in context, see Illescas's year-round climate.

Daytime high
24°
5th warmest
Overnight low
12°
8th coldest
Rainfall
45 mm
8 wet days
Daylight
14 h 12 min
6:05 AM – 8:18 PM
Cloud cover
50%
6th clearest
Wind
10 km/h
4th windiest
Solar energy
6.8 kWh/m²
Travel score
7.3
out of 10

Illescas is capital of Illescas Municipality, Spain.

Air quality
Moderate
PM10 30.8 µg/m³ · 2019

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 26°C by the end.

A typical May day in Illescas reaches about 24°C in the afternoon and slips back to 12°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 30°C. Set against its neighbours, May runs about 5°C warmer than April and about 6°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12110
22110
32110
42110
52210
62210
72211
82211
92211
102311
112311
122311
132311
142312
152412
162412
172412
182412
192412
202512
212513
222513
232513
242513
252613
262613
272614
282614
292614
302714
312714

How May really feels in Illescas

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Illescas weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 387.29.52.7
Feb13° / 346.510.43.9
Mar17° / 417.511.75.7
Apr19° / 487.8136.5
May24° / 12°45814.27.3
Jun30° / 17°204.114.86.2
Jul34° / 20°91.514.64.1
Aug33° / 19°112.513.64.4
Sep28° / 15°243.912.37.2
Oct21° / 11°587.510.97.0
Nov15° / 527.89.84.6
Dec11° / 497.79.22.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
35050
45050
55149
65149
75149
85248
95347
105347
115545
125545
135743
145842
155941
166040
176139
186238
196238
206337
216337
226436
236436
246436
256634
266634
276634
286733
296733
306832
316832

Chance of precipitation in May

Any precipitation

Illescas gets around 45 mm of rain over 8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
328
429
529
629
730
830
930
1030
1130
1229
1329
1428
1528
1627
1726
1825
1924
2023
2123
2222
2322
2421
2521
2620
2720
2819
2919
3019
3119

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
7991
8991
9991
10991
11991
12991
13991
14982
15982
16973
17973
18964
19964
20955
21946
22946
23937
24928
25928
26928
27919
28919
29919
30919
319010

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 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
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 6:22 AM to 5:54 AM, and sunset from 8:03 PM to 8:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:228:03
213.76:218:04
313.86:208:05
413.86:188:06
513.86:178:07
613.96:168:08
713.96:158:09
813.96:148:10
914.06:128:11
1014.06:118:12
1114.06:108:13
1214.16:098:14
1314.16:088:15
1414.16:078:16
1514.26:068:17
1614.26:058:18
1714.26:048:19
1814.36:038:20
1914.36:038:21
2014.36:028:22
2114.46:018:23
2214.46:008:24
2314.45:598:25
2414.45:598:25
2514.55:588:26
2614.55:578:27
2714.55:578:28
2814.55:568:29
2914.65:558:30
3014.65:558:30
3114.65:548:31

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.8 kWh/m².

For context, solar energy here swings from a low near 1.9 kWh/m² to a high of 7.87 kWh/m² in July across the year — May's 6.8 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.4Intense
56.4Intense
66.4Intense
76.5Intense
86.5Intense
96.5Intense
106.6Intense
116.6Intense
126.7Intense
136.7Intense
146.8Intense
156.8Intense
166.8Intense
176.9Intense
186.9Intense
197.0Intense
207.0Intense
217.0Intense
227.1Intense
237.1Intense
247.1Intense
257.1Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.3Intense
317.3Intense
Planning a trip in May

Is May a good time to visit Illescas?

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

7.3
Sightseeing
1st-best month of the year
5.9
Beach & pool
5th-best month of the year

May is one of the better times to visit Illescas for general sightseeing.

What to pack for Illescas in May

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

In May, Illescas sees daytime highs around 24°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

UV index in Illescas in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Illescas 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
Sep6High
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Illescas?

Illescas sits at 40.1°N, 3.8°W, 590 m above sea level, in Spain. The nearest listed city is Seseña, 13 km away.

Topography around Illescas

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

Within 3 km, the terrain around Illescas has only modest variations in elevation — a maximum elevation change of 100 m around an average of 585 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,998 m.

The land around Illescas is covered by cropland (48%), grassland (22%) and artificial surfaces (22%) within 3 km, cropland (61%) and grassland (22%) within 16 km, and cropland (43%) and grassland (33%) within 80 km.

3 km
100 m
16 km
241 m
80 km
1,998 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Seseña 13 km · Humanes de Madrid 14 km · Parla 14 km · Valdemoro 16 km · Arroyomolinos 18 km · Pinto 18 km · Fuenlabrada 19 km · Ciempozuelos 20 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 Illescas (40.1221°, -3.847°, elevation 590 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).