Sitten weather in August

In August, Sitten sees average daytime highs of 18°C and overnight lows near 7°C, with 170 mm of precipitation across 16.9 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 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels dry.

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 Sitten's 1st-clearest and 12th-windiest month. For the whole year in context, see Sitten's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
11th coldest
Precipitation
170 mm
16.9 wet days
Daylight
14 hours
5:35 AM – 7:34 PM
Cloud cover
56%
1st clearest
Wind
4 km/h
12th windiest
Solar energy
5.17 kWh/m²
Travel score
5.0
out of 10

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 Sitten reaches about 18°C in the afternoon and slips back to 7°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°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)
1198
2198
3198
4198
5198
6198
7188
8188
9188
10188
11188
12187
13187
14187
15187
16187
17187
18187
19187
20187
21187
22187
23187
24187
25177
26176
27176
28176
29176
30176
31166

How August really feels in Sitten

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.

Sitten 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-3° / -12°12812.412.98.80.0
Feb-1° / -11°11111.412.1100.0
Mar / -6°11413.412.511.60.0
Apr / -2°11614.310.313.30.9
May12° / 17318.85.314.72.5
Jun16° / 17618.8115.54.1
Jul18° / 18018.40.415.25.0
Aug18° / 17016.90.4145.0
Sep14° / 12914.61.912.33.7
Oct10° / -0°11313.45.210.72.0
Nov / -7°12613.210.99.20.1
Dec-3° / -11°14113.313.38.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45248
55149
65149
75149
85050
95149
105149
115149
125149
135149
145248
155248
165248
175248
185347
195347
205248
215149
225149
235149
245050
255050
265050
275050
285050
294951
304951
314951

Chance of precipitation in August

Any precipitationSnow

Sitten gets around 170 mm of rain and snow over 16.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 54% and peaks near 58% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1580
2570
3571
4571
5571
6561
7561
8561
9561
10551
11551
12551
13541
14541
15541
16541
17541
18541
19531
20531
21531
22531
23531
24532
25532
26532
27533
28533
29533
30523
31524

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1964
2964
3973
4973
5973
6973
7973
8973
9973
10973
11982
12982
13982
14982
15991
16991
17991
18991
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

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 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 5:16 AM to 5:54 AM, and sunset from 7:57 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:167:57
214.65:177:56
314.65:197:54
414.65:207:53
514.55:217:52
614.55:227:50
714.45:247:49
814.45:257:47
914.35:267:46
1014.35:277:44
1114.25:297:43
1214.25:307:41
1314.15:317:39
1414.15:327:38
1514.05:347:36
1614.05:357:34
1713.95:367:33
1813.95:387:31
1913.85:397:29
2013.85:407:27
2113.75:417:26
2213.75:437:24
2313.65:447:22
2413.65:457:20
2513.55:477:18
2613.55:487:16
2713.45:497:15
2813.45:517:13
2913.35:527:11
3013.35:537:09
3113.25:547:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.17 kWh/m².

For context, solar energy here swings from a low near 1.33 kWh/m² to a high of 5.92 kWh/m² in June across the year — August's 5.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Sitten?

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

5.0
Sightseeing
1st-best month of the year
1.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Sitten for sightseeing.

What to pack for Sitten in August

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

In August, Sitten sees daytime highs around 18°C and nights near 7°C. Pack rain gear. Worth having: a warm layer and sun protection. About 17 days see rain.

rain geara warm layersun protection

UV index in Sitten 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 Sitten peaks around July 16 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 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr5High
May7Very high
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Sitten?

Sitten sits at 46.2°N, 7.4°E, 500 m above sea level, in Switzerland. The nearest listed city is Sierre, 16 km away.

Martigny-VilleMontheyZermattMontreuxVeveyBulleChamonix

Topography around Sitten

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

Within 3 km, the terrain around Sitten has large variations in elevation — a maximum elevation change of 958 m around an average of 686 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,767 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,579 m.

The land around Sitten is covered by trees (47%), artificial surfaces (26%) and grassland (24%) within 3 km, trees (42%) and grassland (35%) within 16 km, and trees (38%) and grassland (35%) within 80 km.

3 km
958 m
16 km
2,767 m
80 km
4,579 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
August weather nearby: Sierre 16 km · Martigny-Ville 26 km · Monthey 31 km · Zermatt 38 km · Montreux 41 km · Vevey 47 km · Bulle 49 km · Chamonix 50 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 Sitten (46.2274°, 7.3556°, elevation 500 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).