La Celle-Saint-Cloud weather in August

In August, La Celle-Saint-Cloud sees average daytime highs of 24°C and overnight lows near 14°C, with 57 mm of rain across 9 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 hours at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is La Celle-Saint-Cloud's 1st-clearest and 12th-windiest month. For the whole year in context, see La Celle-Saint-Cloud's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
57 mm
9 wet days
Daylight
14 h 12 min
5:50 AM – 8:01 PM
Cloud cover
61%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
4.78 kWh/m²
Travel score
7.0
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 23°C by the end.

A typical August day in La Celle-Saint-Cloud reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32515
42515
52515
62515
72515
82515
92515
102515
112515
122514
132514
142514
152514
162514
172414
182414
192414
202414
212414
222414
232414
242414
252414
262313
272313
282313
292313
302313
312313

How August really feels in La Celle-Saint-Cloud

Once humidity and wind are folded in, August 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

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

La Celle-Saint-Cloud weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5211.30.88.50.7
Feb / 47101.19.81.2
Mar12° / 5110.50.511.63.0
Apr15° / 5010.6013.44.5
May19° / 6611.30155.6
Jun22° / 12°5810.6015.96.4
Jul25° / 14°559.4015.56.9
Aug24° / 14°579014.27.0
Sep21° / 11°478.4012.46.5
Oct16° / 6211.2010.54.6
Nov10° / 5811.30.38.92.2
Dec / 6812.50.98.10.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34456
44456
54555
64555
74456
84456
94456
104456
114456
124456
134456
144456
154456
164357
174357
184357
194258
204258
214159
224159
234258
244258
254159
264060
274159
284060
294060
304060
314159

Chance of precipitation in August

Any precipitation

La Celle-Saint-Cloud gets around 57 mm of rain over 9 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 29% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
330
430
530
630
730
830
930
1030
1130
1230
1330
1430
1529
1629
1729
1829
1929
2029
2129
2229
2328
2428
2528
2628
2728
2827
2927
3027
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13840193
23840193
33839193
43939193
54038193
64038193
74137193
84137193
94236193
104236193
114336192
124335192
134335192
144435202
154435202
164435201
174435201
184535201
194534201
204634191
214733191
224833191
234932181
245031181
255131171
265230171
275330161
285529151
295629141
305828140
315928130

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 hours at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over August. Sunrise moves from 5:29 AM to 6:12 AM, and sunset from 8:26 PM to 7:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.05:298:26
214.95:308:25
314.95:328:23
414.85:338:22
514.85:348:20
614.75:368:18
714.75:378:17
814.65:398:15
914.65:408:14
1014.55:418:12
1114.55:438:10
1214.45:448:08
1314.35:468:07
1414.35:478:05
1514.25:488:03
1614.25:508:01
1714.15:517:59
1814.15:537:57
1914.05:547:55
2014.05:567:54
2113.95:577:52
2213.95:597:50
2313.86:007:48
2413.76:027:46
2513.76:037:44
2613.66:047:42
2713.66:067:40
2813.56:077:37
2913.46:097:35
3013.46:107:33
3113.36:127:31

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.78 kWh/m².

For context, solar energy here swings from a low near 0.78 kWh/m² to a high of 5.56 kWh/m² in June across the year — August's 4.78 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.5Bright
254.4Bright
264.4Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
314.1Bright
Planning a trip in August

Is August a good time to visit La Celle-Saint-Cloud?

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

7.0
Sightseeing
1st-best month of the year
6.0
Beach & pool
2nd-best month of the year

August is one of the better times to visit La Celle-Saint-Cloud for general sightseeing.

What to pack for La Celle-Saint-Cloud in August

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

In August, La Celle-Saint-Cloud sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in La Celle-Saint-Cloud 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 Celle-Saint-Cloud peaks around June 22 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in La Celle-Saint-Cloud in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in La Celle-Saint-Cloud is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1020 µg/m³Jul 2014 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar20Moderate
Apr20Moderate
May17Moderate
Jun16Moderate
Jul13Moderate
Aug14Moderate
Sep15Moderate
Oct15Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is La Celle-Saint-Cloud?

La Celle-Saint-Cloud sits at 48.9°N, 2.1°E, 158 m above sea level, in France. The nearest listed city is Garches, 3.0 km away.

Topography around La Celle-Saint-Cloud

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Celle-Saint-Cloud.

Within 3 km, the terrain around La Celle-Saint-Cloud has only modest variations in elevation — a maximum elevation change of 179 m around an average of 130 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 221 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.

The land around La Celle-Saint-Cloud is covered by trees (68%) and artificial surfaces (22%) within 3 km, trees (41%) and artificial surfaces (38%) within 16 km, and cropland (54%) and trees (31%) within 80 km.

3 km
179 m
16 km
221 m
80 km
260 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Garches 3.0 km · Le Chesnay 4.0 km · Saint-Cloud 4.0 km · Rueil-Malmaison 4.0 km · Chatou 5.0 km · Le Vésinet 5.0 km · Marly-le-Roi 5.0 km · Versailles 5.0 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 Celle-Saint-Cloud (48.8503°, 2.1452°, elevation 158 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).