Illescas in Summer
In summer (June, July and August), Illescas sees average daytime highs around 32°C and overnight lows near 18°C, with 39 mm of rain over about 8 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 27°C in early June to 32°C by late August. The sky is clear or mostly clear about 74% of the time across summer, and the air most often feels dry.
Summer is Illescas's 3rd-best season to visit on our travel score. For the whole year in context, see Illescas's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 39 mm
- 8 wet days
- Avg wind
- 10 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Illescas in Summer
Over the season highs climb from about 27°C in early June to 32°C by late August.
A typical summer day in Illescas reaches about 32°C and drops to 18°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Illescas
Once humidity and wind are folded in, summer brings about 62 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Illescas 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° / 2° | 38 | 7.2 | 9.5 | 2.7 |
| Feb | 13° / 3° | 34 | 6.5 | 10.4 | 3.9 |
| Mar | 17° / 6° | 41 | 7.5 | 11.7 | 5.7 |
| Apr | 19° / 8° | 48 | 7.8 | 13 | 6.5 |
| May | 24° / 12° | 45 | 8 | 14.2 | 7.3 |
| Jun | 30° / 17° | 20 | 4.1 | 14.8 | 6.2 |
| Jul | 34° / 20° | 9 | 1.5 | 14.6 | 4.1 |
| Aug | 33° / 19° | 11 | 2.5 | 13.6 | 4.4 |
| Sep | 28° / 15° | 24 | 3.9 | 12.3 | 7.2 |
| Oct | 21° / 11° | 58 | 7.5 | 10.9 | 7.0 |
| Nov | 15° / 6° | 52 | 7.8 | 9.8 | 4.6 |
| Dec | 11° / 3° | 49 | 7.7 | 9.2 | 2.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 74% of the time across summer.
Chance of precipitation in Summer
Illescas gets around 39 mm of rain over 8 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 36 min in early June to 13 hours 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 7.5 kWh/m².
Is summer a good time to visit Illescas?
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 a reasonable time to visit Illescas for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Illescas in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Illescas sees daytime highs around 32°C and nights near 18°C. Pack light clothes and sun protection. About 8 days see rain.
UV index in Illescas in Summer
Clear-sky midday UV across summer averages 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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 6 | 7 | 7 | 9 | 10 | 9 | 6 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | High | Very high | Extreme | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 2 | Moderate |
| Mar | 6 | High |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
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.
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 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.