Schwyz weather in August

In August, Schwyz sees average daytime highs of 19°C and overnight lows near 10°C, with 227 mm of precipitation across 18.7 wet days and about 14 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Schwyz's 1st-clearest and 12th-windiest month. For the whole year in context, see Schwyz's year-round climate.

Daytime high
19°
2nd warmest
Overnight low
10°
12th coldest
Precipitation
227 mm
18.7 wet days
Daylight
14 hours
5:28 AM – 7:31 PM
Cloud cover
60%
1st clearest
Wind
4 km/h
12th windiest
Solar energy
4.79 kWh/m²
Travel score
4.9
out of 10
Air quality
Good
PM2.5 8.4 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 19°C in the first days to 17°C by the end.

A typical August day in Schwyz reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11911
21911
31911
41911
51911
61910
71910
81910
91910
101910
111910
121910
131910
141910
151910
161910
171910
181910
191910
201910
211810
221810
231810
24189
25189
26189
27189
28179
29179
30179
31178

How August really feels in Schwyz

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.

Schwyz weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -6°12813.513.68.70.0
Feb / -6°11712.712.4100.0
Mar / -3°13715.913.711.60.1
Apr / -0°14216.110.213.31.3
May13° / 19620.35.214.82.8
Jun17° / 22420.41.415.64.1
Jul19° / 10°22020.20.615.34.8
Aug19° / 10°22718.70.5144.9
Sep15° / 17115.92.312.43.8
Oct10° / 13513.75.510.62.2
Nov / -2°14314.211.39.10.2
Dec / -6°14014.713.68.40.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44456
54456
64456
74456
84555
94555
104555
114555
124555
134555
144654
154654
164654
174654
184753
194753
204654
214654
224654
234555
244555
254456
264357
274357
284159
294159
304060
314159

Chance of precipitation in August

Any precipitationSnow

Schwyz gets around 227 mm of rain and snow over 18.7 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 60% and peaks near 65% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
1650
2640
3640
4640
5640
6630
7630
8630
9630
10620
11620
12610
13610
14610
15600
16600
17590
18591
19581
20581
21581
22582
23582
24583
25583
26584
27584
28585
29585
30585
31586

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
17822
27822
37921
47921
57921
68020
78020
88119
98119
108218
118317
128416
138515
148515
158614
168713
178713
188713
198812
208812
218812
228812
238911
248911
258911
269010
27919
28919
29928
30937
31946

Wind in August

Winds average 4 km/h in August, the calmest month.

Across August, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 48 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 96 minutes over August. Sunrise moves from 5:09 AM to 5:48 AM, and sunset from 7:54 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.85:097:54
214.75:107:53
314.75:117:51
414.65:127:50
514.65:147:49
614.55:157:47
714.55:167:46
814.45:187:44
914.45:197:43
1014.35:207:41
1114.35:217:39
1214.25:237:38
1314.25:247:36
1414.15:257:34
1514.15:277:33
1614.05:287:31
1714.05:297:29
1813.95:317:27
1913.95:327:26
2013.85:337:24
2113.85:357:22
2213.75:367:20
2313.75:377:18
2413.65:397:16
2513.65:407:14
2613.55:417:12
2713.55:437:11
2813.45:447:09
2913.45:457:07
3013.35:477:05
3113.25:487:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.79 kWh/m².

For context, solar energy here swings from a low near 1.2 kWh/m² to a high of 5.6 kWh/m² in June across the year — August's 4.79 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.1Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.3Bright
314.3Bright
Planning a trip in August

Is August a good time to visit Schwyz?

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

4.9
Sightseeing
1st-best month of the year
1.8
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Schwyz for sightseeing.

What to pack for Schwyz in August

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

In August, Schwyz sees daytime highs around 19°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 19 days see rain.

rain gearsun protection

UV index in Schwyz 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 Schwyz peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Schwyz?

Schwyz sits at 47.0°N, 8.7°E, 521 m above sea level, in Switzerland. The nearest listed city is Einsiedeln, 14 km away.

ZugBaarChamRapperswilLucerneHorgenJona

Topography around Schwyz

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

Within 3 km, the terrain around Schwyz has very significant variations in elevation — a maximum elevation change of 1,408 m around an average of 711 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,013 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,827 m.

The land around Schwyz is covered by grassland (48%) and trees (41%) within 3 km, trees (44%) and grassland (41%) within 16 km, and trees (39%) and grassland (39%) within 80 km.

3 km
1,408 m
16 km
2,013 m
80 km
3,827 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
August weather nearby: Einsiedeln 14 km · Zug 20 km · Baar 22 km · Cham 23 km · Rapperswil 26 km · Lucerne 27 km · Horgen 27 km · Jona 27 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 Schwyz (47.0208°, 8.6541°, elevation 521 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).