La Rochelle in Summer
In summer (June, July and August), La Rochelle sees average daytime highs around 22°C and overnight lows near 16°C, with 124 mm of rain over about 23 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 20°C in early June to 23°C by late August. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels comfortable.
Summer is La Rochelle's best season of the year to visit on our travel score. For the whole year in context, see La Rochelle's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 124 mm
- 23 wet days
- Avg wind
- 15 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in La Rochelle in Summer
Over the season highs climb from about 20°C in early June to 23°C by late August.
A typical summer day in La Rochelle reaches about 22°C and drops to 16°C overnight. The warmest of the three months is August, the coolest June.
La Rochelle 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 | 9° / 5° | 77 | 11.9 | 8.8 | 1.9 |
| Feb | 10° / 5° | 58 | 9.7 | 10 | 2.2 |
| Mar | 13° / 7° | 54 | 10 | 11.6 | 3.5 |
| Apr | 15° / 9° | 57 | 9.8 | 13.3 | 4.5 |
| May | 18° / 12° | 57 | 10.2 | 14.7 | 5.8 |
| Jun | 21° / 15° | 47 | 8.4 | 15.5 | 6.7 |
| Jul | 23° / 17° | 36 | 7.1 | 15.2 | 7.5 |
| Aug | 23° / 17° | 42 | 7.2 | 14 | 7.6 |
| Sep | 21° / 15° | 55 | 8 | 12.3 | 6.8 |
| Oct | 17° / 12° | 87 | 12.3 | 10.7 | 5.2 |
| Nov | 13° / 8° | 92 | 12.8 | 9.2 | 3.3 |
| Dec | 10° / 6° | 87 | 12.8 | 8.5 | 2.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
La Rochelle gets around 124 mm of rain over 23 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 18 min in early June to 13 h 12 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 5.9 kWh/m².
Is summer a good time to visit La Rochelle?
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 one of the better times to visit La Rochelle for general sightseeing.
What to pack for La Rochelle in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, La Rochelle sees daytime highs around 22°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 23 days see rain.
Sea temperature near La Rochelle in Summer
The nearest coast averages about 19°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 18 km away) is warmest in August at about 20°C and coldest in February near 10°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) | 10 | 10 | 10 | 12 | 15 | 18 | 19 | 20 | 19 | 17 | 14 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 10 | Bracing |
| Mar | 10 | Bracing |
| Apr | 12 | Bracing |
| May | 15 | Bracing |
| Jun | 18 | Cool |
| Jul | 19 | Cool |
| Aug | 20 | Refreshing |
| Sep | 19 | Cool |
| Oct | 17 | Cool |
| Nov | 14 | Bracing |
| Dec | 12 | Bracing |
UV index in La Rochelle 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 La Rochelle peaks around July 20 at about 8 (very 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 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 6 | 6 | 7 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | High | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is La Rochelle?
La Rochelle sits at 46.2°N, 1.2°W, 13 m above sea level, in France. The nearest listed city is Rochefort, 28 km away.
Topography around La Rochelle
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Rochelle.
Within 3 km, the terrain around La Rochelle has only modest variations in elevation — a maximum elevation change of 31 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 59 m; within 80 km, significant variations in elevation — a maximum elevation change of 305 m.
The land around La Rochelle is covered by artificial surfaces (56%) within 3 km, water (48%) and cropland (29%) within 16 km, and cropland (40%) and water (28%) 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 La Rochelle (46.1631°, -1.1522°, elevation 13 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.