Climate and monthly weather forecastThun, Switzerland
Climate and monthly weather forecast
The climate of Thun
Thun, Switzerland finds itself nestled within the Köppen climate classification Cfb, marine west coast, with its warm summers. Its geographical location blesses it with a mix of wet and dry days, offering a distinctive panorama of weather conditions.On a yearly scale, Thun's average daily temperatures fluctuate from a biting -6.5°C (20.3°F) in the winter months to a pleasant 20.1°C (68.2°F) in July, the warmest month. The least chilly month is also July with the low-temperature average at 9.3°C (48.7°F) while the cruelest winter low sweeps in at -7 in February. Relative humidity hovers around the mid-80s with slight dips to 79 in July and August.
Precipitation and snowfall take their own turns on stage: rain falls most heavily during May, yielding 117mm (4.61"). Despite that, it rains the most number of days in June and July, approximately 21 days. A snow lovers delight, Thun experiences the most snowfall in December and January with a significant drop to 0mm (0") from June to September.
Sunshine hours do a grand reveal during the months of July and August, boasting 10.2 and 10 hours daily, respectively. Conversely, December offers the least sunshine with its tight 5.3 hours only.
The best time to visit Thun
Eyeing a trip to Thun? The best time to visit would arguably be late spring and early summer, around May and June. The weather achieves an appealing balance during this period: temperatures ascend to a comfortable 13°C (55.4°F) to 17.7°C (63.9°F), relatively low precipitation occurs and amounts to 112mm (4.41") to 117mm (4.61"), and over half the day, from 15.1 hours to 15.8 hours, rewards with daylight. It leads to extended exploring in the heart of Switzerland. The UV index is also moderate at this time, which suggests safe conditions for outdoor activities.The worst time to visit Thun
While each season holds its charm, the harsh reality of winter bears down the most between December to February in Thun. Temperatures converge on lows reaching -7°C (19.4°F). In concert with this, snowfall ascends to noteworthy 191mm (7.52") to 204mm (8.03") with snowfall observed on 7.9 days to 11.8 days. The daylight hours are minimal as well, doling out a mere 8.6 hours to 10.3 hours. This combination could curtail outdoor activities and exploration plans, rendering it a less than optimal period for tourists.Spring weather in Thun
Spring bursts forth in Thun with temperatures gradually climbing from 5.1°C (41.2°F) in March to a welcome 13°C (55.4°F) towards May. Rainfall vacillates between 63mm (2.48") to 117mm (4.61") on an average, potentially allotting for damp early spring days. Fortunately, such weather circumstances are paired with escalating daylight hours from 11.9 hours to 15.1 hours allowing ample time for sightseeing.Summer weather in Thun
During summer, Thun's temperatures stretch enjoyably from 17.7°C (63.9°F) to 20.1°C (68.2°F), on average, between June to August. Predicted rainfall can reach its zenith at 112mm (4.41") in June and taper off to 108mm (4.25") by August. Concurrently, daylight and sunshine reveal their plentitude, offering up to 15.8 hours and 10.2 hours, respectively, in the month of June.Autumn weather in Thun
Autumn sees a gradual cooling trend in Thun, with temperatures declining from 15.6°C (60.1°F) in September to a more frigid 5.7°C (42.3°F) by November. Rainfall fluctuates in the range of 53mm (2.09") in September and peaks to 78mm (3.07") in November. The number of daylight hours lessens over these months, with the shortest being 9.4 hours in November.Winter weather in Thun
Winter bites fiercely in Thun between December to February. With a high of 2.3°C (36.1°F) to a low of -7°C (19.4°F), snowfall hangs heavy at 191mm (7.52") in December and rises slightly to 204mm (8.03") in January. Daylight dwindles to a scant 8.6 hours in December. However, with snow blanketing the city, it could provide a dazzling spectacle for those who find joy in the hush of the winter season.Weather in January
The weather in Thun, Switzerland begins the year with a cold note. Relative humidity is at a high 87%, with an average snowfall of 191mm (7.52") over 11.8 days. This makes for a against the beautiful backdrop of mountains. Travel should be planned with care as the temperatures can range from a low of -6.5°C (20.3°F) up to a high of 0.8°C (33.4°F). Weather in January »Weather in February
February continues the winter trend in the city of Thun. During this month, careful planning would be prudent as the weather conditions can be challenging with an increased snowfall, clocking in at 204mm (8.03") over approximately 10.6 days. Weather in February »Weather in March
As winter morphs into spring in Thun, there is a marked change in weather conditions. Still draped in its winter coat, the city in March experiences a decline in snowfall to 139mm (5.47") spread across 6.7 days. A rise in temperature can be noted with a range from -3.6°C (25.5°F) to 5.1°C (41.2°F). Weather in March »Weather in April
With the advent of April, the weather in Thun takes a turn towards warmer conditions. Snowfall trickles down to 47mm (1.85") occurring over 1.6 days, revealing a landscape poised for spring. The temperature swing ranges from 0.5°C (32.9°F) to 10.2°C (50.4°F), providing a noticeable increase in warmth from March. Weather in April »Weather in May
The merry month of May presents milder weather conditions. The landscape of Thun shifts completely into spring mode with a scant snowfall of 6mm (0.24") over just 0.3 days. Temperatures span from a comfortable 3.3°C (37.9°F) to a warm 13°C (55.4°F), making it a delightful time to visit. Weather in May »Weather in June
The arrival of June signifies the start of summer in Thun, Switzerland. The snow completely retreats, showcasing the thriving alpine vegetation. Temperature fluctuations between 7.4°C (45.3°F) and 17.7°C (63.9°F) epitomize pleasant Swiss summers. Weather in June »Weather in July
July, in the heart of summer, offers the warmest conditions. The temperature oscillates between 9.3°C (48.7°F) and a summer high of 20.1°C (68.2°F). Rain remains a companion with regular intervals, nurturing the verdant landscapes. Weather in July »Weather in August
Nearing summer's end, August weather continues to offer a warm, sun-drenched experience. Slightly lower temperatures, fluctuating between 8.8°C (47.8°F) and 19.9°C (67.8°F), mark the onset of the fall. The lush scenery and 14.2 hours of daylight captured during daytime provide picture-perfect light conditions for photography enthusiasts. Weather in August »Weather in September
The month of September initiates the season of fall in Thun with notable changes in weather patterns. The temperature range shrinks from 5.5°C (41.9°F) to 15.6°C (60.1°F), setting the stage for cooler months to come. This period manifests a distinctive autumnal charm with colorful trees and comfortable weather, inviting for explorations and hikes. The average high-temperature in Thun, Switzerland, slightly decreases in September, shifting from an enjoyable 19.9°C (67.8°F) in August to a moderate 15.6°C (60.1°F). Weather in September »Weather in October
October in Thun is tinged with the autumn hues. A notable drop in the temperature spectrum between 2.7°C (36.9°F) and 11.5°C (52.7°F) hints at the winter waiting in the wings. This month exhibits a fascinating blend of late autumn aura with billowing clouds, vibrant foliage, and misty mornings, characteristic of the Swiss city. The commencement of October indicates a gentle shift in the average high-temperature, receding from September's refreshing 15.6°C (60.1°F) to a cool 11.5°C (52.7°F). Weather in October »Weather in November
November marks the arrival of winter with a spectacular display of nature's transition. November anticipates the forthcoming winter, with temperatures dipping from -1.4°C (29.5°F) to 5.7°C (42.3°F) and an imminent increase in snowfall to 98mm (3.86") within the span of 4.7 days. Weather in November »Weather in December
December brings the full-blown winter season to Thun, Switzerland. The city, draped in a winter blanket, gets covered with 208mm (8.19") of snow over 7.9 days. Temperature fluctuations range from a chilly -5.3°C (22.5°F) to 2.3°C (36.1°F), indicative of the brisk weather. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Thun, Switzerland
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (0.8°C).
The month with the highest average low temperature is July (9.3°C).
The coldest month (with the lowest average low temperature) is February (-7°C).
Average pressure
Thun, Switzerland
- Average pressure in January:
1019.4mbar - Average pressure in February:
1017.6mbar - Average pressure in March:
1017mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016mbar - Average pressure in June:
1016.4mbar
- Average pressure in July:
1017mbar - Average pressure in August:
1017.8mbar - Average pressure in September:
1018.5mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1015.9mbar - Average pressure in December:
1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed
Thun, Switzerland
- Average wind speed in January:
7.9km/h - Average wind speed in February:
8km/h - Average wind speed in March:
8km/h - Average wind speed in April:
7km/h - Average wind speed in May:
7km/h - Average wind speed in June:
6.8km/h
- Average wind speed in July:
6.4km/h - Average wind speed in August:
6km/h - Average wind speed in September:
6.3km/h - Average wind speed in October:
6.7km/h - Average wind speed in November:
7.3km/h - Average wind speed in December:
8.3km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity
Thun, Switzerland
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall
Thun, Switzerland
- Average rainfall in January:
76mm - Average rainfall in February:
66mm - Average rainfall in March:
68mm - Average rainfall in April:
63mm - Average rainfall in May:
117mm - Average rainfall in June:
112mm
The wettest month (with the highest rainfall) is May (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days
Thun, Switzerland
- Average rainfall days in January:
13.8 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
21.8 days - Average rainfall days in June:
20.7 days
- Average rainfall days in July:
20.8 days - Average rainfall days in August:
19.3 days - Average rainfall days in September:
15.9 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
12.5 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (11.8 days).
Average snowfall
Thun, Switzerland
The month with the highest snowfall is December (208mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Thun, Switzerland
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
10.6 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
1.6 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
4.7 days - Average snowfall days in December:
7.9 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Thun, Switzerland
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 18min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 42min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 18min).
Average sunshine days
Thun, Switzerland
- Average sunshine days in January:
11.9 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
11.2 days - Average sunshine days in April:
9.5 days - Average sunshine days in May:
6.8 days - Average sunshine days in June:
7.9 days
- Average sunshine days in July:
7.9 days - Average sunshine days in August:
8.2 days - Average sunshine days in September:
10.6 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
13 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is May (6.8 days).
Average UV index
Thun, Switzerland
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Thun, Switzerland
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 35).
Average visibility
Thun, Switzerland
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is February (7km).








