Thun weather in August

In August, Thun sees average daytime highs of 20°C and overnight lows near 11°C, with 180 mm of precipitation across 16 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 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 35% 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 Thun's 2nd-clearest and 12th-windiest month. For the whole year in context, see Thun's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
11°
11th coldest
Precipitation
180 mm
16 wet days
Daylight
14 hours
5:33 AM – 7:34 PM
Cloud cover
54%
2nd clearest
Wind
5 km/h
12th windiest
Solar energy
4.98 kWh/m²
Travel score
5.6
out of 10
Air quality
Excellent
PM10 12.4 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 21°C in the first days to 19°C by the end.

A typical August day in Thun reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°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)
12112
22112
32112
42112
52112
62112
72112
82112
92112
102112
112111
122111
132111
142111
152111
162111
172111
182011
192011
202011
212011
222011
232011
242011
252010
262010
271910
281910
291910
301910
311910

How August really feels in Thun

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.

Thun 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 / -5°10712.911.48.80.0
Feb / -5°10011.710.4100.0
Mar / -1°10814.19.511.61.0
Apr11° / 12014.86.713.32.4
May15° / 18318.32.614.83.8
Jun19° / 10°182180.415.64.9
Jul21° / 11°19316.80.215.35.6
Aug20° / 11°180160.1145.6
Sep16° / 13713.7112.44.8
Oct12° / 11212.42.810.63.1
Nov / -1°11713.27.99.20.6
Dec / -4°12213.711.48.40.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35743
45644
55545
65644
75545
85545
95545
105545
115644
125644
135644
145545
155545
165644
175644
185545
195644
205644
215545
225545
235545
245446
255446
265446
275347
285347
295248
305248
315347

Chance of precipitation in August

Any precipitation

Thun gets around 180 mm of rain and snow over 16 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 51% and peaks near 54% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
154
254
354
454
554
654
754
854
954
1054
1154
1253
1353
1453
1552
1652
1751
1851
1951
2050
2150
2250
2349
2449
2549
2648
2748
2847
2947
3047
3147

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 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
153452
253452
353452
454442
554442
655432
755432
856422
957412
1057412
1158402
1259392
1361381
1462371
1563361
1664351
1764351
1866340
1966340
2067330
2168320
2268320
2369310
2470300
2571290
2672280
2773270
2874260
2975250
3077230
3178220

Wind in August

Winds average 5 km/h in August, the calmest month.

Across August, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 5:14 AM to 5:53 AM, and sunset from 7:58 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:147:58
214.75:157:56
314.65:167:55
414.65:177:53
514.65:197:52
614.55:207:51
714.55:217:49
814.45:227:47
914.45:247:46
1014.35:257:44
1114.35:267:43
1214.25:287:41
1314.25:297:40
1414.15:307:38
1514.15:317:36
1614.05:337:34
1714.05:347:33
1813.95:357:31
1913.95:377:29
2013.85:387:27
2113.85:397:26
2213.75:417:24
2313.75:427:22
2413.65:437:20
2513.65:457:18
2613.55:467:16
2713.45:477:14
2813.45:497:12
2913.35:507:10
3013.35:517:08
3113.25:537:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.98 kWh/m².

For context, solar energy here swings from a low near 1.17 kWh/m² to a high of 5.73 kWh/m² in July across the year — August's 4.98 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in August

Is August a good time to visit Thun?

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

5.6
Sightseeing
1st-best month of the year
3.1
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Thun for sightseeing.

What to pack for Thun in August

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

In August, Thun sees daytime highs around 20°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 16 days see rain.

rain gearsun protection

UV index in Thun 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 Thun peaks around July 15 at about 9 (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 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Thun?

Thun sits at 46.8°N, 7.6°E, 560 m above sea level, in Switzerland. The nearest listed city is Steffisburg, 3.0 km away.

InterlakenKönizBernLauterbrunnenBurgdorfGrindelwaldFribourg

Topography around Thun

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

Within 3 km, the terrain around Thun has significant variations in elevation — a maximum elevation change of 456 m around an average of 603 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,858 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,156 m.

The land around Thun is covered by trees (39%) and artificial surfaces (23%) within 3 km, trees (43%) and grassland (43%) within 16 km, and trees (39%) and grassland (36%) within 80 km.

3 km
456 m
16 km
1,858 m
80 km
4,156 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
August weather nearby: Steffisburg 3.0 km · Interlaken 20 km · Köniz 25 km · Bern 26 km · Lauterbrunnen 28 km · Burgdorf 34 km · Grindelwald 35 km · Fribourg 36 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 Thun (46.7512°, 7.6217°, elevation 560 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).