May weather forecastAlnö, Sweden

May

Weather in May

The last month of the spring, May, is a cool month in Alnö, Sweden, with an average temperature ranging between max 12.8°C (55°F) and min 4.8°C (40.6°F).

Temperature

Alnö in May experiences an increase in the average high-temperature, moving from April's frosty 7°C (44.6°F) to a fresh 12.8°C (55°F). Alnö experiences a mean low-temperature of 4.8°C (40.6°F) during May.

Humidity

The average relative humidity in May in Alnö is 67%.

Rainfall

In Alnö, in May, during 13.1 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, there are 117.2 rainfall days, and 384mm (15.12") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.4 snowfall days, in May, Alnö aggregates 21mm (0.83") of snow. In Alnö, during the entire year, snow falls for 70.7 days and aggregates up to 908mm (35.75") of snow.

Daylight

The average length of the day in May is 17h and 53min.
On the first day of the month, sunrise is at 04:31 and sunset at 21:02. On the last day of May, sunrise is at 03:11 and sunset at 22:24 CEST.

Sunshine

In May, the average sunshine is 9.9h.

UV index

In May, the average daily maximum UV index in Alnö is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 4 during May translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

The high-temperature in Alnö, Sweden, during May is 12.8°C (55°F) and the low-temperature is 4.8°C (40.6°F).

The average relative humidity in May is 67%.

In Alnö, in May, during 13.1 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

May is the last month it regularly snows. During 1.4 snowfall days, in May, Alnö aggregates 21mm (0.83") of snow.

In Alnö, Sweden, the average day length in May is 17h and 53min.

On the first day of May in Alnö, sunrise is at 04:31 and sunset at 21:02. On the last day of the month, sunrise is at 03:11 and sunset at 22:24 CEST.

In Alnö, Sweden, the average sunshine duration in May is 9.9h.

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Alnö, Sweden

  • Average high temperature in May: 12.8°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in May: 4.8°C

The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.9°C).

Average pressure in May
Alnö, Sweden

  • Average pressure in May: 1014.3mbar

The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).

Average wind speed in May
Alnö, Sweden

  • Average wind speed in May: 10.4km/h

The windiest month (with the highest average wind speed) is January (11.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).

Average humidity in May
Alnö, Sweden

  • Average humidity in May: 67%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (66%).

Average rainfall in May
Alnö, Sweden

  • Average rainfall in May: 33mm

The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in May
Alnö, Sweden

  • Average rainfall days in May: 13.1 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in May
Alnö, Sweden

  • Average snowfall in May: 21mm

The month with the highest snowfall is January (217mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Alnö, Sweden

  • Average snowfall days in May: 1.4 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in May: 17h and 54min

The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).

  • Average sunshine in May: 9h and 54min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

Average sunshine days in May
Alnö, Sweden

  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in May
Alnö, 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, November and December (UV index 1).

Average cloud cover in May
Alnö, Sweden

  • Average cloud cover in May: 47

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in May
Alnö, Sweden

  • Average visibility in May: 9km

The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).