May weather forecast
Posio, Finland

May

Weather in May

The last month of the spring, May, is a chilly month in Posio, Finland, with temperature in the range of an average high of 9.9°C (49.8°F) and an average low of 2.3°C (36.1°F).

Temperature

Posio's transition into May is marked by a distinct rise in the average high-temperature, advancing from an icy 1.4°C (34.5°F) in April to a chilly 9.9°C (49.8°F). In May, Posio encounters an average low-temperature of 2.3°C (36.1°F) during the night.

Humidity

The average relative humidity in May in Posio is 77%.

Rainfall

In Posio, during May, the rain falls for 13.6 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 117.1 rainfall days, and 485mm (19.09") of precipitation is accumulated.

Snowfall

Months with snowfall in Posio, Finland, are January through June, September through December. In Posio, Finland, in May, during 6.8 snowfall days, 84mm (3.31") of snow is typically accumulated. In Posio, during the entire year, snow falls for 154.7 days and aggregates up to 1613mm (63.5") of snow.

Daylight

In May, the average length of the day in Posio is 19h and 25min.
On the first day of the month, sunrise is at 04:20 and sunset at 21:48. On the last day of May, sunrise is at 02:16 and sunset at 23:53 EEST.

Sunshine

The average sunshine in May in Posio is 8.2h.

UV index

The average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 3 during May translates into the following guidance:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What is the usual temperature for Posio in May?
Posio in May has an average high-temperature of 9.9°C (49.8°F) and an average low-temperature of 2.3°C (36.1°F).
What is the average humidity in May in Posio?
In Posio, Finland, the average relative humidity in May is 77%.
How much does it rain in Posio in May?
In May, in Posio, Finland, the rain falls for 13.6 days. Throughout May, 38mm (1.5") of precipitation is accumulated.
How much does it snow in Posio in May?
In May, in Posio, it is snowing for 6.8 days. Throughout May, 84mm (3.31") of snow is accumulated.
How many hours of daylight does Posio have in May?
In May, the average day length is 19h and 25min.
When is the sunrise / sunset in May in Posio?
In May, on the first day of the month, sunrise is at 04:20 and sunset at 21:48. On the last day of the month, sunrise is at 02:16 and sunset at 23:53 EEST.
How many hours of sunshine does Posio have in May?
In May, the average sunshine duration in Posio, Finland, is 8.2h.
What is the UV index reading in May in Posio?
In Posio, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Posio, Finland
Average temperature in May
Posio, Finland
  • Average high temperature in May: 9.9°C

The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is January (-8.4°C).

  • Average low temperature in May: 2.3°C

The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-13.8°C).

Average pressure in May - Posio, Finland
Average pressure in May
Posio, Finland
  • 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 (1006.1mbar).

Average wind speed in May - Posio, Finland
Average wind speed in May
Posio, Finland
  • Average wind speed in May: 12.1km/h

The windiest month (with the highest average wind speed) is November (12.9km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).

Average humidity in May - Posio, Finland
Average humidity in May
Posio, Finland
  • Average humidity in May: 77%

The month with the highest relative humidity is January (97%).
The month with the lowest relative humidity is June (70%).

Average rainfall in May - Posio, Finland
Average rainfall in May
Posio, Finland
  • Average rainfall in May: 38mm

The wettest month (with the highest rainfall) is July (57mm).
The driest months (with the least rainfall) are January and April (31mm).

Average rainfall days in May - Posio, Finland
Average rainfall days in May
Posio, Finland
  • Average rainfall days in May: 13.6 days

The month with the highest number of rainy days is August (18.4 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in May - Posio, Finland
Average snowfall in May
Posio, Finland
  • Average snowfall in May: 84mm

The month with the highest snowfall is December (283mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in May - Posio, Finland
Average snowfall days in May
Posio, Finland
  • Average snowfall days in May: 6.8 days

The month with the highest number of snowfall days is December (24.5 days).
The month with the least snowfall days is July (0 days).

Average daylight in May / Average sunshine in May - Posio, Finland
Average daylight in May /
Average sunshine in May
Posio, Finland
  • Average daylight in May: 19h and 2min

The month with the longest days is July (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 3h and 6min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).

Average sunshine days in May - Posio, Finland
Average sunshine days in May
Posio, Finland
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is July (11.6 days).
The month with the least sunshine days is April (5.3 days).

Average UV index in May - Posio, Finland
Average UV index in May
Posio, Finland
  • Average UV index in May: 3

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

Average cloud cover in May - Posio, Finland
Average cloud cover in May
Posio, Finland
  • Average cloud cover in May: 61

The month with the most cloud cover is February (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 51).

Average visibility in May - Posio, Finland
Average visibility in May
Posio, Finland
  • Average visibility in May: 8km

The months with the highest visibility are June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).

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