May weather forecastPiteå, Sweden

May

Weather in May

May presents more idyllic weather conditions in Piteå. The snow disappears entirely, making way for increased rainfall and more hours of daylight. A significant characteristic of May's weather is the welcome rise in average high temperatures, reaching a comfortable 10.6°C (51.1°F). The humidity decreases noticeably during this month, offering more pleasant conditions for outdoor activities. May's distinctive extended daily sunshine hours and the disappearance of snow set the stage for the full bloom of the Swedish summer.

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a cold 3.6°C (38.5°F) in April to a cool 10.6°C (51.1°F). In Piteå, May nights witness a steady temperature drop to a wintry 4.3°C (39.7°F).

Humidity

The average relative humidity in May is 70%.

Rainfall

In Piteå, in May, it is raining for 9.3 days, with typically 22mm (0.87") of accumulated precipitation. In Piteå, during the entire year, the rain falls for 93.1 days and collects up to 277mm (10.91") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Piteå, Sweden. May is the last month it regularly snows. During 2.3 snowfall days, in May, Piteå aggregates 20mm (0.79") of snow. In Piteå, during the entire year, snow falls for 69.7 days and aggregates up to 722mm (28.43") of snow.

Sea temperature

In Piteå, in May, the average water temperature is 3.8°C (38.8°F).
Note: In the event of swimming, this state is extremely frigid, dangerous, and poses a significant risk to life. Hypothermia swiftly ensues without suitable insulated waterproof attire.

Daylight

The average length of the day in May in Piteå is 19h and 0min.
On the first day of May, sunrise is at 03:54 and sunset at 21:07. On the last day of the month, sunrise is at 02:05 and sunset at 22:58 CEST.

Sunshine

The average sunshine in May in Piteå is 11.1h.

UV index

The average daily maximum UV index in May in Piteå, Sweden, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In May, the UV index of 4 transforms into the following advice:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

The high-temperature, in May, in Piteå, records 10.6°C (51.1°F), while the low-temperature is 4.3°C (39.7°F).

In May, the average relative humidity in Piteå, Sweden, is 70%.

In May, in Piteå, the rain falls for 9.3 days. Throughout May, 22mm (0.87") of precipitation is accumulated.

May is the last month it regularly snows in Piteå. During 2.3 snowfall days, in May, Piteå aggregates 20mm (0.79") of snow.

In May, the average sea temperature in Piteå is 3.8°C (38.8°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

In Piteå, Sweden, the average day length in May is 19h and 0min.

In May, on the first day of the month, sunrise is at 03:54 and sunset at 21:07. On the last day of the month, sunrise is at 02:05 and sunset at 22:58 CEST.

The average sunshine duration in May in Piteå is 11.1h.

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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 sea temperature
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Piteå, Sweden

  • Average high temperature in May: 10.6°C

The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (-5.8°C).

  • Average low temperature in May: 4.3°C

The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (-10.7°C).

Average pressure in May
Piteå, Sweden

  • Average pressure in May: 1014.1mbar

The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).

Average wind speed in May
Piteå, Sweden

  • Average wind speed in May: 11.8km/h

The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).

Average humidity in May
Piteå, Sweden

  • Average humidity in May: 70%

The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (66%).

Average rainfall in May
Piteå, Sweden

  • Average rainfall in May: 22mm

The wettest month (with the highest rainfall) is July (28mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in May
Piteå, Sweden

  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in May
Piteå, Sweden

  • Average snowfall in May: 20mm

The month with the highest snowfall is January (156mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Piteå, Sweden

  • Average snowfall days in May: 2.3 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in May
Piteå, Sweden

  • Average sea temperature in May: 3.8°C

The best month for swimming (with the highest average sea temperature) is July (15.5°C).
The coldest month (with the lowest average sea temperature) is February (0.3°C).

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

  • Average daylight in May: 19h and 0min

The month with the longest days is June (Average daylight: 22h and 0min).
The month with the shortest days is December (Average daylight: 3h and 42min).

  • Average sunshine in May: 11h and 6min

The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).

Average sunshine days in May
Piteå, Sweden

  • Average sunshine days in May: 19.4 days

The month with the most sunshine days is June (20.1 days).
The month with the least sunshine days is December (14.5 days).

Average UV index in May
Piteå, Sweden

  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in May
Piteå, Sweden

  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in May
Piteå, Sweden

  • Average visibility in May: 9km

The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March and April (7km).