Deauville weather in September

In September, Deauville sees average daytime highs of 20°C and overnight lows near 12°C, with 54 mm of rain across 9.2 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Deauville's 2nd-clearest and 9th-windiest month. For the whole year in context, see Deauville's year-round climate.

Daytime high
20°
4th warmest
Overnight low
12°
9th coldest
Rainfall
54 mm
9.2 wet days
Daylight
12 h 24 min
6:43 AM – 7:05 PM
Cloud cover
64%
2nd clearest
Wind
13 km/h
9th windiest
Solar energy
3.52 kWh/m²
Travel score
6.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 19°C by the end.

A typical September day in Deauville reaches about 20°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12213
22213
32113
42113
52113
62113
72113
82113
92112
102112
112112
122112
132012
142012
152012
162012
172012
182012
192011
202011
212011
221911
231911
241911
251911
261911
271911
281911
291911
301811

How September really feels in Deauville

Once humidity and wind are folded in, September 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

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

Deauville weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6111.70.78.41.3
Feb / 56120.89.81.6
Mar12° / 5611.80.411.52.9
Apr15° / 5611.40.113.44.2
May18° / 10°6011.8015.15.3
Jun21° / 12°5810.40166.2
Jul23° / 14°5610.3015.66.8
Aug23° / 14°6410.1014.26.7
Sep20° / 12°549.2012.46.2
Oct16° / 10°6612.8010.54.7
Nov12° / 6812.70.18.92.6
Dec / 7913.70.681.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63763
73763
83763
93763
103763
113664
123664
133664
143664
153763
163664
173763
183763
193763
203763
213763
223763
233763
243664
253664
263565
273466
283268
293367
303268

Chance of precipitation in September

Any precipitation

Deauville gets around 54 mm of rain over 9.2 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
130
230
329
429
529
629
730
830
931
1031
1131
1231
1331
1431
1532
1632
1732
1832
1932
2032
2132
2232
2332
2433
2533
2634
2735
2835
2936
3037

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15237101
25336101
3553591
4553591
5563491
6583390
7593290
8593290
9613180
10623080
11632980
12642880
13652780
14672670
15682570
16692560
17702460
18712450
19722350
20712450
21722440
22722440
23722530
24722530
25712630
26712630
27712720
28712720
29712720
30712720

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 6:21 AM to 7:05 AM, and sunset from 7:38 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:217:38
213.26:227:36
313.26:247:34
413.16:257:32
513.06:277:29
613.06:287:27
712.96:307:25
812.96:317:23
912.86:337:21
1012.76:347:18
1112.76:367:16
1212.66:377:14
1312.56:397:12
1412.56:407:09
1512.46:427:07
1612.46:437:05
1712.36:457:03
1812.26:467:00
1912.26:486:58
2012.16:496:56
2112.06:516:54
2212.06:526:51
2311.96:546:49
2411.96:556:47
2511.86:576:45
2611.76:586:42
2711.77:006:40
2811.67:016:38
2911.57:036:36
3011.57:056:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.52 kWh/m².

For context, solar energy here swings from a low near 0.81 kWh/m² to a high of 5.84 kWh/m² in June across the year — September's 3.52 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.4Moderate
193.4Moderate
203.3Moderate
213.3Moderate
223.2Moderate
233.2Moderate
243.1Moderate
253.1Moderate
263.0Moderate
273.0Moderate
282.9Moderate
292.9Moderate
302.8Moderate
Planning a trip in September

Is September a good time to visit Deauville?

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

6.2
Sightseeing
3rd-best month of the year
3.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Deauville for sightseeing.

What to pack for Deauville in September

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

In September, Deauville sees daytime highs around 20°C and nights near 12°C. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Deauville in September

The nearest coast averages about 18°C in September — 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 19°C and coldest in February near 8°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb8Bracing
Mar8Bracing
Apr10Bracing
May12Bracing
Jun15Cool
Jul18Cool
Aug19Cool
Sep18Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Deauville in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Deauville 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 18UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul6High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Deauville in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Deauville is worst in April — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1515 µg/m³Nov 187 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun12Moderate
Jul10Good
Aug11Good
Sep10Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Deauville?

Deauville sits at 49.4°N, 0.1°E, 0 m above sea level, in France. The nearest listed city is Le Havre, 15 km away.

Topography around Deauville

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

Within 3 km, the terrain around Deauville has only modest variations in elevation — a maximum elevation change of 137 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 174 m; within 80 km, significant variations in elevation — a maximum elevation change of 382 m.

The land around Deauville is covered by water (38%), trees (26%) and grassland (21%) within 3 km, water (44%), grassland (25%) and trees (22%) within 16 km, and cropland (32%), water (26%) and grassland (22%) within 80 km.

3 km
137 m
16 km
174 m
80 km
382 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Le Havre 15 km · Montivilliers 23 km · Lisieux 26 km · Hérouville-Saint-Clair 32 km · Caen 36 km · Fécamp 50 km · Bayeux 57 km · Elbeuf 68 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 Deauville (49.357°, 0.0699°, 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).