May weather forecastBilldal, Sweden
May
Weather in May
May, the last month of the spring in Billdal, is a moderate month, with an average temperature ranging between min 7.9°C (46.2°F) and max 14.5°C (58.1°F).Temperature
The start of May brings a subtle shift in the average high-temperature, edging up from April's fresh 10°C (50°F) to a mild 14.5°C (58.1°F). In May, the temperature drops to an average of 7.9°C (46.2°F) at night.Humidity
With an average relative humidity of 73%, May is the least humid month.Rainfall
In Billdal, in May, it is raining for 16.1 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, in Billdal, there are 179.3 rainfall days, and 570mm (22.44") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Billdal. During 0.2 snowfall days, in May, Billdal aggregates 1mm (0.04") of snow. In Billdal, during the entire year, snow falls for 25.6 days and aggregates up to 183mm (7.2") of snow.Sea temperature
In May, the average sea temperature in Billdal is 11.2°C (52.2°F).Note: With an efficient thermal swimsuit, one can navigate 11.2°C (52.2°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C (55.4°F) feels chilly.
Daylight
In May, the average length of the day is 16h and 39min.On the first day of May in Billdal, sunrise is at 05:19 and sunset at 20:58. On the last day of the month, sunrise is at 04:22 and sunset at 21:57 CEST.
Sunshine
In Billdal, the average sunshine in May is 9.2h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 during May translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Billdal, Sweden
- Average high temperature in May: 14.5°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is February (1.6°C).
- Average low temperature in May: 7.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-1.6°C).
Average pressure in May
Billdal, Sweden
- Average pressure in May: 1014.6mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in May
Billdal, Sweden
- Average wind speed in May: 15.1km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is June (14.8km/h).
Average humidity in May
Billdal, Sweden
- Average humidity in May: 73%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (73%).
Average rainfall in May
Billdal, Sweden
- Average rainfall in May: 39mm
The wettest month (with the highest rainfall) is August (68mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in May
Billdal, Sweden
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is August (19 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in May
Billdal, Sweden
- Average snowfall in May: 1mm
The month with the highest snowfall is January (58mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Billdal, Sweden
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Billdal, Sweden
- Average sea temperature in May: 11.2°C
The best month for swimming (with the highest average sea temperature) is August (18.5°C).
The coldest month (with the lowest average sea temperature) is March (2.6°C).
Average daylight in May /
Average sunshine in May
Billdal, Sweden
- Average daylight in May: 16h and 36min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in May
Billdal, Sweden
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is April (15.3 days).
The month with the least sunshine days is August (9.5 days).
Average UV index in May
Billdal, Sweden
- Average UV index in May: 4
The months with the highest UV index are June and July (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
Billdal, Sweden
- Average cloud cover in May: 40
The months with the most cloud cover are January, February, November and December (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 39).
Average visibility in May
Billdal, Sweden
- Average visibility in May: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).





