May weather forecastAlster, Sweden

May

Weather in May

May, the last month of the spring in Alster, is a mild month, with an average temperature fluctuating between 14.8°C (58.6°F) and 7°C (44.6°F).

Temperature

May's arrival brings a change in high-temperatures, moving from a chilly 9.8°C (49.6°F) in April to a mild 14.8°C (58.6°F). An average temperature of 7°C (44.6°F) is recorded during the nights in May.

Humidity

With an average relative humidity of 69%, May is the least humid month.

Rainfall

In Alster, in May, during 15 rainfall days, 46mm (1.81") of precipitation is typically accumulated. In Alster, during the entire year, the rain falls for 151 days and collects up to 477mm (18.78") of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Alster aggregates 7mm (0.28") of snow. In Alster, during the entire year, snow falls for 47.6 days and aggregates up to 416mm (16.38") of snow.

Daylight

In Alster, the average length of the day in May is 17h and 3min.
On the first day of the month, sunrise is at 05:04 and sunset at 21:00. On the last day of May, sunrise is at 04:00 and sunset at 22:05 CEST.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 4 in May translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Updated: Jul 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in May, in Alster, is 14.8°C (58.6°F), while the average low-temperature is 7°C (44.6°F).

The least humid month is May, with an average relative humidity of 69%.

In May, the average relative humidity in Alster is 69%.

In Alster, in May, during 15 rainfall days, 46mm (1.81") of precipitation is typically accumulated.

May is the last month it regularly snows. During 0.6 snowfall days, in May, Alster aggregates 7mm (0.28") of snow.

In May, the average day length is 17h and 3min.

On the first day of May, sunrise is at 05:04 and sunset at 21:00. On the last day of the month, sunrise is at 04:00 and sunset at 22:05 CEST.

In Alster, the average sunshine duration in May is 9.1h.

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

9.8°C

14.8°C

18.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.3km/h

14km/h

13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.5

13.8

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Alster, Sweden

Average high temperature in May: 14.8°C

The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (-0.3°C).

Average low temperature in May: 7°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).

Average pressure in May
Alster, Sweden

Average pressure in May: 1014.2mbar

The months with the highest atmospheric pressure are April and May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1008mbar).

Average wind speed in May
Alster, Sweden

Average wind speed in May: 12.9km/h

The windiest month (with the highest average wind speed) is December (16.7km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).

Average humidity in May
Alster, Sweden

Average humidity in May: 69%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (69%).

Average rainfall in May
Alster, Sweden

Average rainfall in May: 46mm

The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (16mm).

Average rainfall days in May
Alster, Sweden

Average rainfall days in May: 15 days

The month with the highest number of rainy days is July (17.4 days).
The months with the least rainy days are January and February (7.1 days).

Average snowfall in May
Alster, Sweden

Average snowfall in May: 7mm

The month with the highest snowfall is January (108mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Alster, Sweden

Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Alster, Sweden

Average daylight in May: 17h and 6min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).

Average sunshine in May: 9h and 6min

The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).