Le Grand-Quevilly in Summer
In summer (June, July and August), Le Grand-Quevilly sees average daytime highs around 22°C and overnight lows near 13°C, with 189 mm of rain over about 33 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 19°C in early June to 21°C by late August. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels dry.
Summer is Le Grand-Quevilly's best season of the year to visit on our travel score. For the whole year in context, see Le Grand-Quevilly's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 189 mm
- 33 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Le Grand-Quevilly in Summer
Over the season highs climb from about 19°C in early June to 21°C by late August.
A typical summer day in Le Grand-Quevilly reaches about 22°C and drops to 13°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Le Grand-Quevilly
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Le Grand-Quevilly 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / 2° | 63 | 11.8 | 0.9 | 8.4 | 0.8 |
| Feb | 8° / 2° | 56 | 11 | 1.2 | 9.8 | 1.1 |
| Mar | 11° / 4° | 60 | 11.5 | 0.4 | 11.5 | 2.6 |
| Apr | 14° / 6° | 63 | 11.3 | 0.2 | 13.4 | 3.9 |
| May | 17° / 9° | 66 | 12.1 | 0 | 15.1 | 5.1 |
| Jun | 20° / 12° | 65 | 11 | 0 | 16 | 6.0 |
| Jul | 22° / 13° | 59 | 10.9 | 0 | 15.6 | 6.6 |
| Aug | 22° / 13° | 65 | 10.7 | 0 | 14.2 | 6.6 |
| Sep | 19° / 11° | 52 | 9.4 | 0 | 12.4 | 6.1 |
| Oct | 15° / 8° | 73 | 12.3 | 0 | 10.5 | 4.2 |
| Nov | 10° / 5° | 69 | 12.7 | 0.2 | 8.9 | 2.2 |
| Dec | 7° / 3° | 81 | 13.3 | 1 | 8 | 1.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Le Grand-Quevilly gets around 189 mm of rain over 33 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 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 42 min in early June to 13 h 24 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 5.3 kWh/m².
Is summer a good time to visit Le Grand-Quevilly?
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 Le Grand-Quevilly for sightseeing.
What to pack for Le Grand-Quevilly in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Le Grand-Quevilly sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 33 days see rain.
Sea temperature near Le Grand-Quevilly 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 54 km away) is warmest in August at about 18°C and coldest in February near 8°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) | 8 | 8 | 8 | 10 | 12 | 15 | 17 | 18 | 18 | 16 | 13 | 10 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 8 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 10 | Bracing |
| May | 12 | Bracing |
| Jun | 15 | Bracing |
| Jul | 17 | Cool |
| Aug | 18 | Cool |
| Sep | 18 | Cool |
| Oct | 16 | Cool |
| Nov | 13 | Bracing |
| Dec | 10 | Bracing |
UV index in Le Grand-Quevilly in Summer
Clear-sky midday UV across summer averages 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 Le Grand-Quevilly peaks around June 18 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 6 | 7 | 6 | 7 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Le Grand-Quevilly in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Le Grand-Quevilly is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 14 | 15 | 13 | 12 | 10 | 11 | 11 | 9 | 9 | 9 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 13 | Moderate |
| Jun | 12 | Moderate |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 9 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is Le Grand-Quevilly?
Le Grand-Quevilly sits at 49.4°N, 1.0°E, 47 m above sea level, in France. The nearest listed city is Le Petit-Quevilly, 2.0 km away.
Topography around Le Grand-Quevilly
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Le Grand-Quevilly.
Within 3 km, the terrain around Le Grand-Quevilly has only modest variations in elevation — a maximum elevation change of 127 m around an average of 38 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 200 m; within 80 km, significant variations in elevation — a maximum elevation change of 315 m.
The land around Le Grand-Quevilly is covered by artificial surfaces (49%) and trees (36%) within 3 km, trees (47%) within 16 km, and cropland (44%) and trees (23%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- 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 Le Grand-Quevilly (49.4008°, 1.0458°, elevation 47 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.