Cannes weather in August

In August, Cannes sees average daytime highs of 26°C and overnight lows near 22°C, with 19 mm of rain across 3.7 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 66% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Cannes's 2nd-clearest and 12th-windiest month. For the whole year in context, see Cannes's year-round climate.

Daytime high
26°
1st warmest
Overnight low
22°
12th coldest
Rainfall
19 mm
3.7 wet days
Daylight
13 h 48 min
5:42 AM – 7:30 PM
Cloud cover
32%
2nd clearest
Wind
9 km/h
12th windiest
Solar energy
6.1 kWh/m²
Travel score
8.2
out of 10

Cannes is French commune and city in Alpes-Maritimes, Provence-Alpes-Côte d'Azur.

Air quality
Elevated
PM2.5 15.9 µg/m³ · 2015
Density
3,799/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 26°C through the month.

A typical August day in Cannes reaches about 26°C in the afternoon and slips back to 22°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12622
22622
32622
42622
52622
62622
72622
82622
92622
102622
112622
122622
132622
142622
152622
162622
172622
182622
192622
202622
212622
222622
232622
242621
252621
262521
272521
282521
292521
302521
312521

Cannes 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 daysSnow daysDaylight (hours)Travel score
Jan12° / 646.50.29.13.3
Feb12° / 536.70.510.23.4
Mar14° / 546.40.111.64.4
Apr16° / 11°677.8013.25.2
May19° / 15°476.3014.56.8
Jun23° / 19°324.5015.28.0
Jul26° / 21°132.6014.98.5
Aug26° / 22°193.7013.88.2
Sep23° / 19°706.1012.37.7
Oct19° / 15°1088.9010.86.4
Nov15° / 12°1299.409.54.8
Dec12° / 797.70.28.83.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18713
28713
38614
48614
58614
68614
78614
88515
98515
108515
118515
128416
138416
148416
158416
168416
178416
188416
198416
208416
218317
228317
238317
248317
258317
268218
278119
288020
298020
307921
317921

Chance of precipitation in August

Any precipitation

Cannes gets around 19 mm of rain over 3.7 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 12% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
19
210
310
410
510
611
711
811
911
1011
1111
1211
1311
1411
1512
1612
1712
1812
1912
2012
2112
2213
2313
2413
2514
2614
2714
2815
2915
3015
3116

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1161946271
2161946271
3161946271
4162046271
5162046271
6262045261
7262145261
8262145261
9262144251
10272144251
11272244251
12272244241
13272244240
14272344230
15272344230
16272344230
17272344230
18272345220
19282344220
20282344220
21282444210
22392444210
23392444200
243102443190
254112443180
264122542170
275132541160
286142640140
296162639130
307172738110
318182837100

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 5:25 AM to 5:59 AM, and sunset from 7:51 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:257:51
214.45:267:50
314.45:277:49
414.35:287:47
514.35:297:46
614.25:307:45
714.25:327:43
814.25:337:42
914.15:347:41
1014.15:357:39
1114.05:367:38
1214.05:377:36
1313.95:387:35
1413.95:407:33
1513.95:417:32
1613.85:427:30
1713.85:437:29
1813.75:447:27
1913.75:457:26
2013.65:467:24
2113.65:487:22
2213.55:497:21
2313.55:507:19
2413.45:517:17
2513.45:527:16
2613.35:537:14
2713.35:547:12
2813.25:567:10
2913.25:577:09
3013.15:587:07
3113.15:597:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.1 kWh/m².

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 6.96 kWh/m² in July across the year — August's 6.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.4Intense
86.4Intense
96.4Intense
106.3Intense
116.3Intense
126.3Intense
136.2Intense
146.2Intense
156.2Intense
166.1Intense
176.1Intense
186.0Intense
196.0Intense
206.0Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.4Bright
Planning a trip in August

Hazard calendar for Cannes

In seasonPeak

None of Cannes's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Cannes's rainy season runs April–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Cannes?

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

8.2
Sightseeing
2nd-best month of the year
7.8
Beach & pool
2nd-best month of the year

August is one of the better times to visit Cannes for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cannes in August

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

In August, Cannes sees daytime highs around 26°C and nights near 22°C. Pack sun protection. Worth having: light clothes. About 4 days see rain.

sun protectionlight clothes

Sea temperature near Cannes in August

The nearest coast averages about 25°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Oct 16 — about 4.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Cannes 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 Cannes peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr7Very high
May6High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Cannes 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 Cannes is worst in March — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Cannes's WHO annual average of 15.9 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1618 µg/m³Nov 1514 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar18Moderate
Apr18Moderate
May16Moderate
Jun16Moderate
Jul15Moderate
Aug16Moderate
Sep14Moderate
Oct15Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Cannes?

Cannes sits at 43.6°N, 7.0°E, 0 m above sea level, in France. The nearest listed city is Le Cannet, 3.0 km away.

Topography around Cannes

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cannes.

Within 3 km, the terrain around Cannes has significant variations in elevation — a maximum elevation change of 270 m around an average of 47 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 910 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,196 m.

The land around Cannes is covered by water (40%), artificial surfaces (33%) and trees (26%) within 3 km, water (44%) and trees (39%) within 16 km, and trees (50%) and water (32%) within 80 km.

3 km
270 m
16 km
910 m
80 km
3,196 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Le Cannet 3.0 km · Vallauris 4.0 km · Mougins 6.0 km · Mandelieu-la-Napoule 6.0 km · Juan-les-Pins 8.0 km · Antibes 10 km · Grasse 14 km · Cagnes-sur-Mer 17 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 Cannes (43.5513°, 7.0127°, elevation 0 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. 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).