Climate Insights for Attiswil

Oberaargau, Canton de Berne, Switzerland

Hottest
July
25°C peak
Coldest
January
-2°C low
Wettest
May
156mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Attiswil is temperate. The average annual temperature is 10°C and approximately 1298mm of precipitation falls per year. Attiswil receives a notable amount of rainfall throughout the year, including during its driest month. Attiswil is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 83cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 4° Average: 1° Min: -2° Feb Max: 7° Average: 3° Min: 0° Mar Max: 11° Average: 6° Min: 2° Apr Max: 14° Average: 9° Min: 4° May Max: 18° Average: 13° Min: 8° Jun Max: 23° Average: 18° Min: 13° Jul Max: 25° Average: 20° Min: 14° Aug Max: 24° Average: 19° Min: 14° Sep Max: 20° Average: 15° Min: 10° Oct Max: 15° Average: 10° Min: 6° Nov Max: 8° Average: 5° Min: 2° Dec Max: 5° Average: 2° Min: 0°
Max
Average
Min

Temperatures in Attiswil vary considerably across the year, with a 27°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 110mm Snow: 25mm Feb Precipitation: 75mm Snow: 15mm Mar Precipitation: 85mm Snow: 9mm Apr Precipitation: 101mm Snow: 8mm May Precipitation: 156mm Snow: 1mm Jun Precipitation: 141mm Snow: 0mm Jul Precipitation: 124mm Snow: 0mm Aug Precipitation: 124mm Snow: 0mm Sep Precipitation: 95mm Snow: 0mm Oct Precipitation: 91mm Snow: 1mm Nov Precipitation: 96mm Snow: 10mm Dec Precipitation: 100mm Snow: 15mm
Precipitation
Snow

Attiswil is a fairly wet location, receiving approximately 1298mm of precipitation annually, which averages out to around 108mm per month. The wettest month is May, averaging 156mm of rainfall. June and August also tend to see above-average precipitation. The driest month is February, with just 75mm. That's 81mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 83cm accumulating over the season. January typically sees the most snow at around 25cm.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 12km/h Feb Wind Speed: 13km/h Mar Wind Speed: 13km/h Apr Wind Speed: 12km/h May Wind Speed: 12km/h Jun Wind Speed: 11km/h Jul Wind Speed: 10km/h Aug Wind Speed: 10km/h Sep Wind Speed: 10km/h Oct Wind Speed: 10km/h Nov Wind Speed: 11km/h Dec Wind Speed: 11km/h
Wind Speed

Attiswil is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Attiswil, which began on March 20, 2026. Attiswil is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 25°C, while the coldest stretch bottoms out in January near -2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 2 to 18°C. Rainfall is heavy, totalling around 342mm across the season with a monthly average of 114mm. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 13 to 25°C. Rainfall is heavy, totalling around 389mm across the season with a monthly average of 130mm. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 2 to 20°C. Precipitation is moderate at around 282mm for the season, averaging 94mm per month. Expect around 10cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -2 to 7°C. Precipitation is moderate at around 285mm for the season, averaging 95mm per month. Expect around 55cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Monthly Climate Data

The table below shows monthly climate averages for Attiswil based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-2 °C
4 °C
12 km/h
110 mm
25 cm
Feb
0 °C
7 °C
13 km/h
75 mm
15 cm
Mar Current
2 °C
11 °C
13 km/h
85 mm
9 cm
Apr
4 °C
14 °C
12 km/h
101 mm
8 cm
May
8 °C
18 °C
12 km/h
156 mm
1 cm
Jun
13 °C
23 °C
11 km/h
141 mm
0 cm
Jul
14 °C
25 °C
10 km/h
124 mm
0 cm
Aug
14 °C
24 °C
10 km/h
124 mm
0 cm
Sep
10 °C
20 °C
10 km/h
95 mm
0 cm
Oct
6 °C
15 °C
10 km/h
91 mm
1 cm
Nov
2 °C
8 °C
11 km/h
96 mm
10 cm
Dec
0 °C
5 °C
11 km/h
100 mm
15 cm
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Metric (°C, km/h)