Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
An increase in the average high-temperature marks May, moving from April's cold 5.8°C (42.4°F) to a fresh 10.8°C (51.4°F). By observes an average nighttime low-temperature of 4.5°C (40.1°F) during the month of May.Humidity
With an average relative humidity of 75%, May is the least humid month in By.Rainfall
In By, in May, during 18.1 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In By, Norway, during the entire year, the rain falls for 193.1 days and collects up to 854mm (33.62") of precipitation.Snowfall
Months with snowfall in By are January through May, October through December. May is the last month it regularly snows. During 4.9 snowfall days, in May, By aggregates 104mm (4.09") of snow. In By, during the entire year, snow falls for 88.5 days and aggregates up to 1596mm (62.83") of snow.Daylight
In May, the average length of the day is 18h and 25min.On the first day of the month, sunrise is at 04:49 and sunset at 21:41. On the last day of May, sunrise is at 03:16 and sunset at 23:15 CEST.
Sunshine
The average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index in By, Norway, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in May translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in By in May?
What is the least humid month in By?
What is the average humidity in May in By?
How much does it rain in By in May?
What is the last month it snows in By?
How many hours of daylight does By have in May?
When are sunrise and sunset in May in By?
How long on average sun shines in May in By?
What is the UV index reading in May in By?
Average temperature in May
By, Norway
- Average high temperature in May: 10.8°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in May: 4.5°C
The month with the highest average low temperature is July (10.1°C).
The coldest month (with the lowest average low temperature) is February (-5°C).
Average pressure in May
By, Norway
- Average pressure in May: 1014.4mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1003mbar).
Average wind speed in May
By, Norway
- Average wind speed in May: 11.8km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).
Average humidity in May
By, Norway
- Average humidity in May: 75%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (75%).
Average rainfall in May
By, Norway
- Average rainfall in May: 54mm
The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is June (46mm).
Average rainfall days in May
By, Norway
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is October (19.7 days).
The month with the least rainy days is February (10.2 days).
Average snowfall in May
By, Norway
- Average snowfall in May: 104mm
The month with the highest snowfall is February (339mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
By, Norway
- Average snowfall days in May: 4.9 days
The month with the highest number of snowfall days is March (18 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in May /
Average sunshine in May
By, Norway
- Average daylight in May: 18h and 2min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in May
By, Norway
- Average sunshine days in May: 9 days
The month with the most sunshine days is September (10.9 days).
The month with the least sunshine days is March (7.2 days).
Average UV index in May
By, Norway
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in May
By, Norway
- Average cloud cover in May: 55
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 52).
Average visibility in May
By, Norway
- Average visibility in May: 9km
The months with the highest visibility are May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March, April and December (8km).
By, Norway
Weather forecast for your location
2. Allow the app to use your location