La Rochelle weather in August

In August, La Rochelle sees average daytime highs of 23°C and overnight lows near 17°C, with 42 mm of rain across 7.2 wet days and about 14 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 41% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is La Rochelle's 1st-clearest and 12th-windiest month. For the whole year in context, see La Rochelle's year-round climate.

Daytime high
23°
1st warmest
Overnight low
17°
12th coldest
Rainfall
42 mm
7.2 wet days
Daylight
14 hours
6:09 AM – 8:08 PM
Cloud cover
47%
1st clearest
Wind
14 km/h
12th windiest
Solar energy
5.42 kWh/m²
Travel score
7.6
out of 10

La Rochelle is French commune and prefecture of Charente-Maritime, New Aquitaine.

Air quality
Good
PM2.5 9.1 µg/m³ · 2019
Density
2,702/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical August day in La Rochelle reaches about 23°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72417
82417
92417
102417
112317
122317
132317
142317
152317
162317
172317
182317
192317
202317
212317
222317
232317
242317
252316
262316
272316
282316
292316
302316
312316

La Rochelle weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 7711.98.81.9
Feb10° / 589.7102.2
Mar13° / 541011.63.5
Apr15° / 579.813.34.5
May18° / 12°5710.214.75.8
Jun21° / 15°478.415.56.7
Jul23° / 17°367.115.27.5
Aug23° / 17°427.2147.6
Sep21° / 15°55812.36.8
Oct17° / 12°8712.310.75.2
Nov13° / 9212.89.23.3
Dec10° / 8712.88.52.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46634
56634
66535
76535
86436
96535
106535
116436
126436
136436
146436
156436
166436
176337
186337
196238
206238
216238
226238
236238
246139
256139
266139
276139
286139
296139
306139
316040

Chance of precipitation in August

Any precipitation

La Rochelle gets around 42 mm of rain over 7.2 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 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
323
423
523
623
723
824
924
1024
1124
1224
1324
1424
1524
1623
1723
1823
1923
2023
2123
2223
2323
2422
2522
2622
2722
2821
2921
3021
3121

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
194038121
294037121
3104137121
4104136121
5104136121
6114135121
7114135121
8114135121
9114135121
10114134121
11124134121
12124134121
13124134121
14124134121
15134134121
16134133121
17134133121
18134133121
19134133120
20144133120
21154132120
22164132110
23174031110
24194030110
25204030100
26224029100
2723402890
2825402790
2926392680
3028392570
3129392570

Wind in August

Winds average 14 km/h in August, the calmest month.

Across August, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over August. Sunrise moves from 5:50 AM to 6:29 AM, and sunset from 8:31 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:508:31
214.65:528:30
314.65:538:28
414.55:548:27
514.55:558:25
614.55:578:24
714.45:588:23
814.45:598:21
914.36:008:20
1014.36:028:18
1114.26:038:16
1214.26:048:15
1314.16:058:13
1414.16:078:12
1514.06:088:10
1614.06:098:08
1713.96:108:07
1813.96:128:05
1913.86:138:03
2013.86:148:01
2113.76:168:00
2213.76:177:58
2313.66:187:56
2413.66:197:54
2513.56:217:52
2613.56:227:50
2713.46:237:48
2813.46:257:47
2913.36:267:45
3013.36:277:43
3113.26:297:41

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.42 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 6.19 kWh/m² in June across the year — August's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.2Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit La Rochelle?

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

7.6
Sightseeing
1st-best month of the year
6.0
Beach & pool
1st-best month of the year

August is one of the better times to visit La Rochelle for general sightseeing.

What to pack for La Rochelle in August

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

In August, La Rochelle sees daytime highs around 23°C and nights near 17°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near La Rochelle in August

The nearest coast averages about 20°C in August — 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.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan10Bracing
Feb10Bracing
Mar10Bracing
Apr12Bracing
May15Bracing
Jun18Cool
Jul19Cool
Aug20Refreshing
Sep19Cool
Oct17Cool
Nov14Bracing
Dec12Bracing

UV index in La Rochelle in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 20UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

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.

3 km
31 m
16 km
59 m
80 km
305 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Rochefort 28 km · Fontenay-le-Comte 43 km · Niort 56 km · La Roche-sur-Yon 60 km · Royan 60 km · Saintes 61 km · Les Sables-d'Olonne 61 km · Les Herbiers 79 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
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).