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Switzerland weather

Weather in Biel/Bienne for May 2026

Your guide to Biel/Bienne weather in May - trends and predictions

    Temperatures

  • The forecast for the first days of May 2026 in Biel/Bienne predicts temperatures to be around 18 °C, close to the historical average.

  • In general, the average temperature in Biel/Bienne at the beginning of May is 15.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.7 °C by the end of May.

    • Rain 🌧️

  • Biel/Bienne experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 149.6 mm.

Average dry days
1
Dry days
Average rainy days
30
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Biel/Bienne Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
23°
2
Patchy rain possible
19°
3
Moderate rain
17°
4
Patchy rain possible
12°
5
Patchy rain possible
16°
6
Patchy rain possible
10°
7
Patchy rain possible
14°
8
Patchy rain possible
20°
9
Patchy rain possible
22°
10
Patchy rain possible
18°
11
Sunny
18°
12
Sunny
21°
13
Moderate rain at times
17°
14
Heavy rain at times
19°
15
Moderate or heavy rain shower
16°
16
Heavy rain at times
14°
17
Overcast
15°
18
Patchy rain possible
17°
19
Patchy rain possible
19°
20
Patchy light rain with thunder
19°
21
Moderate rain at times
17°
22
Light rain shower
16°
23
Patchy rain possible
16°
24
Patchy rain possible
16°
25
Patchy rain possible
18°
26
Light rain shower
19°
27
Partly cloudy
19°
28
Sunny
20°
29
Sunny
21°
30
Partly cloudy
21°
31
Cloudy
20°

Temperatures trend during May in Biel/Bienne

See the weather trend as well as the moving average line

May weather in Biel/Bienne day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Sunny
Sunny
 23° /2° 0.1 mm 5.7
2 May Patchy rain possible
Patchy rain possible
 19° /8° 3.5 mm 5.1
3 May Moderate rain
Moderate rain
 17° /9° 6 mm 3
4 May Patchy rain possible
Patchy rain possible
 12° /7° 3.5 mm 3
5 May Patchy rain possible
Patchy rain possible
 16° /6° 1.8 mm 3
6 May Patchy rain possible
Patchy rain possible
 10° /8° 0.3 mm 2
7 May Patchy rain possible
Patchy rain possible
 14° /5° 0.1 mm 2
8 May Patchy rain possible
Patchy rain possible
 20° /3° 0.1 mm 3
9 May Patchy rain possible
Patchy rain possible
 22° /6° 0.2 mm 3
10 May Patchy rain possible
Patchy rain possible
 18° /6° 0.4 mm 3
11 May Sunny
Sunny
 18° /3° 0 mm 4
12 May Sunny
Sunny
 21° /4° 0 mm 4
13 May Moderate rain at times
Moderate rain at times
 17° /6° 3.9 mm 4
14 May Heavy rain at times
Heavy rain at times
 19° /6° 5.8 mm 5
15 May Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /6° 11.1 mm 4
16 May Heavy rain at times
Heavy rain at times
 14° /5° 7.9 mm 4
17 May Overcast
Overcast
 15° /4° 5.8 mm 4
18 May Patchy rain possible
Patchy rain possible
 17° /5° 2.4 mm 4
19 May Patchy rain possible
Patchy rain possible
 19° /5° 0.9 mm 4
20 May Patchy light rain with thunder
Patchy light rain with thunder
 19° /8° 6.4 mm 5
21 May Moderate rain at times
Moderate rain at times
 17° /8° 10.1 mm 4
22 May Light rain shower
Light rain shower
 16° /6° 7.1 mm 4
23 May Patchy rain possible
Patchy rain possible
 16° /6° 3.2 mm 4
24 May Patchy rain possible
Patchy rain possible
 16° /6° 2 mm 4
25 May Patchy rain possible
Patchy rain possible
 18° /8° 2.7 mm 4
26 May Light rain shower
Light rain shower
 19° /9° 1.9 mm 4
27 May Partly cloudy
Partly cloudy
 19° /9° 4.9 mm 5
28 May Sunny
Sunny
 20° /8° 0.7 mm 5
29 May Sunny
Sunny
 21° /9° 1.4 mm 5
30 May Partly cloudy
Partly cloudy
 21° /8° 7.9 mm 6
31 May Cloudy
Cloudy
 20° /8° 3.9 mm 5
Next
Important Notice
Our weather forecast for Biel/Bienne in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Biel/Bienne forecast closer to your planned date for the most up-to-date weather information.
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Biel/Bienne in May - FAQ

What are the expected maximum and minimum temperatures in Biel/Bienne during May?

Enjoy moderate daytime temperatures of up to 17° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Biel/Bienne during May?

Significant rainfall exceeding 149.6 mm is expected in Biel/Bienne during May, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Biel/Bienne during May?

The average wind speed in Biel/Bienne during May is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Biel/Bienne

Explore the daily rainfall trends and prepare for Biel/Biennes May weather 💧
Typically, Biel/Bienne has 30 rainy days in May with a total of 149.6 mm of rainfall.

UV exposure in Biel/Bienne during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Biel/Bienne?

Get accurate weather forecasts for Biel/Bienne, located at latitude 47.137 and longitude 7.246. Stay updated with localized weather information tailored for Biel/Bienne.

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