Nyon weather in August

In August, Nyon sees average daytime highs of 22°C and overnight lows near 15°C, with 133 mm of rain across 14.9 wet days and about 14 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Nyon's 2nd-clearest and 12th-windiest month. For the whole year in context, see Nyon's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
133 mm
14.9 wet days
Daylight
14 hours
5:39 AM – 7:39 PM
Cloud cover
55%
2nd clearest
Wind
6 km/h
12th windiest
Solar energy
5.09 kWh/m²
Travel score
6.1
out of 10

Nyon is archaeological site in Nyon in the canton of Vaud, Suisse.

Air quality
Good
PM2.5 7.7 µg/m³ · 2020

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 21°C by the end.

A typical August day in Nyon reaches about 22°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 27°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)
12315
22315
32315
42315
52315
62315
72315
82315
92315
102315
112315
122215
132215
142215
152215
162215
172215
182215
192215
202215
212215
222214
232214
242214
252114
262114
272114
282114
292114
302113
312013

How August really feels in Nyon

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.

Nyon weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°12213.48.48.80.0
Feb / 10312.18.3100.1
Mar / 11213.25.811.61.7
Apr13° / 10914.12.913.33.0
May16° / 13515.90.414.74.4
Jun20° / 13°12815.6015.55.5
Jul22° / 15°13715.6015.26.0
Aug22° / 15°13314.90146.1
Sep18° / 12°11813.2012.45.3
Oct14° / 12213.70.610.73.5
Nov / 130144.39.21.2
Dec / 14114.77.88.50.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35545
45545
55446
65446
75347
85248
95248
105149
115149
125149
135248
145248
155248
165248
175248
185248
195347
205347
215347
225347
235347
245347
255347
265347
275248
285149
295050
305050
315050

Chance of precipitation in August

Any precipitation

Nyon gets around 133 mm of rain over 14.9 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 47% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
250
350
450
550
650
750
849
949
1049
1149
1249
1348
1448
1548
1647
1747
1847
1947
2046
2146
2246
2346
2446
2546
2645
2745
2845
2945
3044
3144

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12543312
22542312
32542312
42641312
52741312
62840312
72840302
82939302
93039292
103139292
113139282
123239271
133239271
143340261
153340251
163441251
173441241
183441241
193541241
203541231
213640231
223740221
233839221
243939211
254138211
264337201
274536191
284734180
294933170
305133160
315332150

Wind in August

Winds average 6 km/h in August, the calmest month.

Across August, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over August. Sunrise moves from 5:20 AM to 5:59 AM, and sunset from 8:02 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:208:02
214.75:218:01
314.65:237:59
414.65:247:58
514.55:257:56
614.55:267:55
714.45:287:54
814.45:297:52
914.35:307:51
1014.35:317:49
1114.25:337:47
1214.25:347:46
1314.15:357:44
1414.15:377:43
1514.15:387:41
1614.05:397:39
1714.05:407:37
1813.95:427:36
1913.85:437:34
2013.85:447:32
2113.75:467:30
2213.75:477:29
2313.65:487:27
2413.65:507:25
2513.55:517:23
2613.55:527:21
2713.45:537:19
2813.45:557:17
2913.35:567:15
3013.35:577:13
3113.25:597:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.09 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 5.84 kWh/m² in July across the year — August's 5.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.5Bright
314.5Bright
Planning a trip in August

Is August a good time to visit Nyon?

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

6.1
Sightseeing
1st-best month of the year
4.2
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Nyon for sightseeing.

What to pack for Nyon in August

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

In August, Nyon sees daytime highs around 22°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

UV index in Nyon 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 Nyon 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
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Nyon?

Nyon sits at 46.4°N, 6.2°E, 401 m above sea level, in Switzerland. The nearest listed city is Thonon-les-Bains, 18 km away.

MeyrinAnnemasseGenevaVernierLancyCarougeMorges

Topography around Nyon

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

Within 3 km, the terrain around Nyon has only modest variations in elevation — a maximum elevation change of 115 m around an average of 402 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,301 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,546 m.

The land around Nyon is covered by water (39%) and cropland (20%) within 3 km, trees (41%) and water (24%) within 16 km, and trees (53%) and grassland (31%) within 80 km.

3 km
115 m
16 km
1,301 m
80 km
4,546 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
August weather nearby: Thonon-les-Bains 18 km · Meyrin 21 km · Annemasse 21 km · Geneva 21 km · Vernier 22 km · Lancy 24 km · Carouge 24 km · Morges 24 km

Switzerland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / J
230 V · 50 Hz
Prices
≈ 112% of US
price level, 2025
GDP per capita
$114,769
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
2.2
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 564
Religion
Roman Catholic 34%none 29%Protestant 23%other Christian 6%

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 Nyon (46.3832°, 6.2396°, elevation 401 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).