May weather forecastSien, Germany
May
Weather in May
The last month of the spring, May, is a refreshing month in Sien, Germany, with an average temperature ranging between max 17.5°C (63.5°F) and min 6.8°C (44.2°F).Temperature
Transitioning into May, Sien records an average high-temperature of an enjoyable 17.5°C (63.5°F), almost identical to April's 14.6°C (58.3°F). Sien experiences a mean temperature of 6.8°C (44.2°F) during May nights.Humidity
In May, the average relative humidity in Sien is 77%.Rainfall
In Sien, in May, it is raining for 17.5 days, with typically 56mm (2.2") of accumulated precipitation. Throughout the year, in Sien, there are 153.9 rainfall days, and 437mm (17.2") of precipitation is accumulated.Snowfall
Months with snowfall in Sien are January through May, October through December. May is the last month it regularly snows in Sien. During 0.3 snowfall days, in May, Sien aggregates 3mm (0.12") of snow. Throughout the year, in Sien, Germany, there are 26.8 snowfall days, and 196mm (7.72") of snow is accumulated.Daylight
In Sien, the average length of the day in May is 15h and 23min.On the first day of the month, sunrise is at 06:05 and sunset at 20:48. On the last day of May, sunrise is at 05:27 and sunset at 21:28 CEST.
Sunshine
In May, the average sunshine in Sien is 8.5h.UV index
In Sien, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sien, Germany
- Average high temperature in May: 17.5°C
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in May: 6.8°C
The month with the highest average low temperature is August (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in May
Sien, Germany
- Average pressure in May: 1016.1mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1014.4mbar).
Average wind speed in May
Sien, Germany
- Average wind speed in May: 9.6km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in May
Sien, Germany
- Average humidity in May: 77%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in May
Sien, Germany
- Average rainfall in May: 56mm
The wettest month (with the highest rainfall) is July (58mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in May
Sien, Germany
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in May
Sien, Germany
- Average snowfall in May: 3mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Sien, Germany
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sien, Germany
- Average daylight in May: 15h and 24min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in May
Sien, Germany
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is March (18.1 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in May
Sien, Germany
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Sien, Germany
- Average cloud cover in May: 46
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Sien, Germany
- Average visibility in May: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).





