Sedan weather in August

In August, Sedan sees average daytime highs of 22°C and overnight lows near 13°C, with 79 mm of rain across 11.9 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 20% 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 24 min by month's end. Set against the rest of the year, August is Sedan's 1st-clearest and 12th-windiest month. For the whole year in context, see Sedan's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
79 mm
11.9 wet days
Daylight
14 h 18 min
5:37 AM – 7:52 PM
Cloud cover
63%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
4.6 kWh/m²
Travel score
6.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical August day in Sedan reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 28°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72314
82314
92314
102314
112313
122313
132213
142213
152213
162213
172213
182213
192213
202213
212213
222213
232113
242112
252112
262112
272112
282112
292012
302012
312012

How August really feels in Sedan

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.

Sedan weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9213.238.40.0
Feb / 7712.149.80.2
Mar10° / 7812.71.911.51.9
Apr13° / 6612.40.313.43.6
May17° / 7713.7015.14.9
Jun20° / 11°7512.50165.8
Jul22° / 13°7812.4015.76.3
Aug22° / 13°7911.9014.26.3
Sep18° / 10°7010.7012.45.6
Oct13° / 7912.3010.53.5
Nov / 8413.118.81.2
Dec / 10914.73.580.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54456
64258
74258
84258
94258
104258
114258
124060
134060
144060
154060
164060
174060
183961
193961
203862
213862
223763
233763
243763
253664
263565
273565
283565
293565
303565
313466

Chance of precipitation in August

Any precipitation

Sedan gets around 79 mm of rain over 11.9 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 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
638
738
838
938
1039
1139
1238
1338
1438
1538
1638
1738
1838
1938
2038
2138
2238
2338
2438
2538
2638
2738
2838
2937
3037
3137

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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1434017
2434017
3434016
4444116
5444115
6444115
7444114
8454114
9454114
10454114
11464114
12464014
13464013
14474013
15473913
16483913
17493813
18503713
19503614
20513514
21523414
22543313
23563113
24573013
25592912
26602812
27612811
28632710
29632710
3065269
3166268

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 12 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
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 hours at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 5:15 AM to 5:59 AM, and sunset from 8:18 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.05:158:18
215.05:168:16
314.95:188:15
414.95:198:13
514.85:218:11
614.85:228:10
714.75:238:08
814.75:258:06
914.65:268:05
1014.65:288:03
1114.55:298:01
1214.55:317:59
1314.45:327:58
1414.45:347:56
1514.35:357:54
1614.35:377:52
1714.25:387:50
1814.15:407:48
1914.15:417:46
2014.05:437:44
2114.05:447:42
2213.95:467:40
2313.85:477:38
2413.85:497:36
2513.75:507:34
2613.75:527:32
2713.65:537:30
2813.55:557:28
2913.55:567:26
3013.45:587:23
3113.45:597:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.6 kWh/m².

For context, solar energy here swings from a low near 0.67 kWh/m² to a high of 5.43 kWh/m² in June across the year — August's 4.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.9Bright
114.8Bright
124.8Bright
134.7Bright
144.7Bright
154.7Bright
164.6Bright
174.6Bright
184.5Bright
194.5Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.1Bright
274.1Bright
284.0Bright
294.0Moderate
303.9Moderate
313.9Moderate
Planning a trip in August

Is August a good time to visit Sedan?

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

6.3
Sightseeing
1st-best month of the year
4.4
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Sedan for sightseeing.

What to pack for Sedan in August

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

In August, Sedan sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Sedan in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sedan peaks around July 15 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJul 15UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Sedan 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 Sedan is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1315 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar14Moderate
Apr16Moderate
May13Moderate
Jun14Moderate
Jul11Good
Aug12Good
Sep11Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Sedan?

Sedan sits at 49.7°N, 4.9°E, 156 m above sea level, in France. The nearest listed city is Charleville-Mézières, 17 km away.

Topography around Sedan

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

Within 3 km, the terrain around Sedan has only modest variations in elevation — a maximum elevation change of 164 m around an average of 187 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 322 m; within 80 km, significant variations in elevation — a maximum elevation change of 587 m.

The land around Sedan is covered by trees (36%) and grassland (29%) within 3 km, trees (54%) and grassland (26%) within 16 km, and trees (42%), cropland (32%) and grassland (24%) within 80 km.

3 km
164 m
16 km
322 m
80 km
587 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Charleville-Mézières 17 km · Dinant 62 km · Arlon 63 km · Marche-en-Famenne 65 km · Verdun 68 km · Walcourt 71 km · Esch-sur-Alzette 78 km · Reims 82 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 Sedan (49.7019°, 4.9403°, elevation 156 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).