La Seyne-sur-Mer weather in August

In August, La Seyne-sur-Mer sees average daytime highs of 26°C and overnight lows near 21°C, with 11 mm of rain across 1.8 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 74% 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 La Seyne-sur-Mer's 2nd-clearest and 12th-windiest month. For the whole year in context, see La Seyne-sur-Mer's year-round climate.

Daytime high
26°
1st warmest
Overnight low
21°
12th coldest
Rainfall
11 mm
1.8 wet days
Daylight
13 h 48 min
5:47 AM – 7:34 PM
Cloud cover
26%
2nd clearest
Wind
15 km/h
12th windiest
Solar energy
6.41 kWh/m²
Travel score
8.5
out of 10

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 La Seyne-sur-Mer reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°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)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102722
112722
122722
132722
142622
152622
162622
172621
182621
192621
202621
212621
222621
232621
242621
252621
262621
272621
282621
292521
302521
312520

La Seyne-sur-Mer 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
Jan12° / 627.49.23.4
Feb12° / 496.310.23.6
Mar14° / 10°435.511.64.7
Apr16° / 12°587.313.15.5
May19° / 15°425.414.47.0
Jun23° / 18°243.515.18.4
Jul26° / 21°81.414.98.8
Aug26° / 21°111.813.88.5
Sep23° / 19°605.712.38.0
Oct19° / 16°918.110.86.6
Nov15° / 12°10410.49.54.8
Dec13° / 717.98.93.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1919
2919
39010
49010
58911
68911
78911
88911
98911
108812
118812
128812
138812
148713
158713
168713
178614
188614
198614
208515
218416
228416
238416
248416
258317
268317
278317
288218
298218
308119
318119

Chance of precipitation in August

Any precipitation

La Seyne-sur-Mer gets around 11 mm of rain over 1.8 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 6% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
135
146
156
166
176
186
196
207
217
227
237
247
258
268
278
289
299
3010
3110

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1314264116
2314254116
3314254116
4314254116
5414254116
6415244216
7415244215
8515244215
9515234215
10515234315
11515234314
12615224314
13615224414
14615224413
15615224513
16615224513
17615224513
18615214513
19615214513
20616214513
21616214413
22716214313
23716224212
24817224112
25917224012
26918233911
271018243711
281119243610
29122025359
30122026338
31132126328

Wind in August

Winds average 15 km/h in August, the calmest month.

Across August, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

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 5:31 AM to 6:04 AM, and sunset from 7:54 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:317:54
214.45:327:53
314.35:337:52
414.35:347:51
514.25:357:49
614.25:367:48
714.25:377:47
814.15:387:46
914.15:397:44
1014.05:407:43
1114.05:427:41
1214.05:437:40
1313.95:447:38
1413.95:457:37
1513.85:467:36
1613.85:477:34
1713.75:487:32
1813.75:497:31
1913.65:517:29
2013.65:527:28
2113.65:537:26
2213.55:547:24
2313.55:557:23
2413.45:567:21
2513.45:577:19
2613.35:587:18
2713.36:007:16
2813.26:017:14
2913.26:027:12
3013.16:037:11
3113.16:047:09

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.41 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 7.34 kWh/m² in July across the year — August's 6.41 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
26.9Intense
36.9Intense
46.9Intense
56.8Intense
66.8Intense
76.8Intense
86.7Intense
96.7Intense
106.7Intense
116.6Intense
126.6Intense
136.5Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.3Intense
196.3Intense
206.3Intense
216.2Intense
226.2Intense
236.1Intense
246.1Intense
256.0Intense
266.0Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
315.7Bright
Planning a trip in August

Hazard calendar for La Seyne-sur-Mer

In seasonPeak

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

La Seyne-sur-Mer's rainy season runs September–February, 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 La Seyne-sur-Mer?

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

8.5
Sightseeing
2nd-best month of the year
8.2
Beach & pool
2nd-best month of the year

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

What to pack for La Seyne-sur-Mer in August

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

In August, La Seyne-sur-Mer sees daytime highs around 26°C and nights near 21°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near La Seyne-sur-Mer in August

The nearest coast averages about 23°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 23°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 19 to Oct 8 — about 3.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun20Cool
Jul22Refreshing
Aug23Refreshing
Sep22Refreshing
Oct20Cool
Nov17Cool
Dec15Cool

UV index in La Seyne-sur-Mer 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 Seyne-sur-Mer peaks around July 15 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 15UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in La Seyne-sur-Mer 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 Seyne-sur-Mer is worst in March — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1915 µg/m³Dec 1010 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar15Moderate
Apr15Moderate
May14Moderate
Jun13Moderate
Jul12Moderate
Aug13Moderate
Sep12Good
Oct12Moderate
Nov10Good
Dec10Good
Location & terrain

Where is La Seyne-sur-Mer?

La Seyne-sur-Mer sits at 43.1°N, 5.9°E, 5 m above sea level, in France. The nearest listed city is Six-Fours-les-Plages, 5.0 km away.

Topography around La Seyne-sur-Mer

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Seyne-sur-Mer.

Within 3 km, the terrain around La Seyne-sur-Mer has only modest variations in elevation — a maximum elevation change of 196 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 810 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,558 m.

The land around La Seyne-sur-Mer is covered by artificial surfaces (54%) and trees (22%) within 3 km, water (49%) and trees (30%) within 16 km, and water (45%) and trees (39%) within 80 km.

3 km
196 m
16 km
810 m
80 km
1,558 m
treesshrubsgrasslandcroplandartificial surfaceswater
August weather nearby: Six-Fours-les-Plages 5.0 km · Toulon 5.0 km · Sanary-sur-Mer 6.0 km · La Valette-du-Var 9.0 km · La Garde 11 km · La Crau 17 km · Hyères 20 km · La Ciotat 24 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 Seyne-sur-Mer (43.1032°, 5.8782°, elevation 5 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).