May weather forecast
Keminmaa, Finland

Weather in May

May, the last month of the spring in Keminmaa, is a frosty month, with an average temperature ranging between min 3.8°C (38.8°F) and max 8.5°C (47.3°F).

Temperature

In Keminmaa, Finland, the average high-temperature in May increases from a wintry 1.9°C (35.4°F) in April to a frosty 8.5°C (47.3°F). The average low-temperature, is 3.8°C (38.8°F).

Humidity

In Keminmaa, Finland, the average relative humidity in May is 76%.

Rainfall

In Keminmaa, during May, the rain falls for 13.3 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, there are 127 rainfall days, and 472mm (18.58") of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, October through December. In Keminmaa, in May, snow falls for 3.4 days, with typically accumulated 37mm (1.46") of snow. Throughout the year, in Keminmaa, there are 98.7 snowfall days, and 1035mm (40.75") of snow is accumulated.

Sea temperature

In May, the average sea temperature in Keminmaa is 3°C (37.4°F).
Note: 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.

Daylight

In Keminmaa, Finland, the average length of the day in May is 19h and 14min.
On the first day of the month, sunrise is at 04:39 and sunset at 21:57. On the last day of May, in Keminmaa, Finland, sunrise is at 02:42 and sunset at 23:56 EEST.

Sunshine

In May, the average sunshine is 10.6h.

UV index

The average daily maximum UV index in May in Keminmaa is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 3 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in May in Keminmaa?

In May, the average relative humidity in Keminmaa is 76%.

How much does it rain in Keminmaa in May?

In May, in Keminmaa, Finland, the rain falls for 13.3 days. Throughout May, 36mm (1.42") of precipitation is accumulated.

How many days does it snow in May in Keminmaa?

In Keminmaa, in May, during 3.4 snowfall days, 37mm (1.46") of snow is typically accumulated.

How cold is the water in May in Keminmaa?

In Keminmaa, the average seawater temperature in May is 3°C (37.4°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Keminmaa have in May?

In Keminmaa, the average day length in May is 19h and 14min.

What time are sunrise and sunset in May in Keminmaa?

In May, on the first day of the month, sunrise is at 04:39 and sunset at 21:57. On the last day of the month, in Keminmaa, Finland, sunrise is at 02:42 and sunset at 23:56 EEST.

How long on average sun shines in May in Keminmaa?

In Keminmaa, Finland, the average sunshine duration in May is 10.6h.

What is the UV index reading in May in Keminmaa?

The average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Keminmaa, Finland

Average temperature in May - Keminmaa, Finland
  • Average high temperature in May: 8.5°C

The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).

  • Average low temperature in May: 3.8°C

The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).

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Average pressure in May
Keminmaa, Finland

Average pressure in May - Keminmaa, Finland
  • Average pressure in May: 1013.9mbar

The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).

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Average wind speed in May
Keminmaa, Finland

Average wind speed in May - Keminmaa, Finland
  • Average wind speed in May: 13.5km/h

The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).

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Average humidity in May
Keminmaa, Finland

Average humidity in May - Keminmaa, Finland
  • Average humidity in May: 76%

The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (71%).

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Average rainfall in May
Keminmaa, Finland

Average rainfall in May - Keminmaa, Finland
  • Average rainfall in May: 36mm

The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).

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Average rainfall days in May
Keminmaa, Finland

Average rainfall days in May - Keminmaa, Finland
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in May
Keminmaa, Finland

Average snowfall in May - Keminmaa, Finland
  • Average snowfall in May: 37mm

The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).

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Average snowfall days in May
Keminmaa, Finland

Average snowfall days in May - Keminmaa, Finland
  • Average snowfall days in May: 3.4 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).

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Average sea temperature in May
Keminmaa, Finland

Average sea temperature in May - Keminmaa, Finland
  • Average sea temperature in May: 3°C

The best month for swimming (with the highest average sea temperature) is July (16.8°C).
The coldest months (with the lowest average sea temperature) are January and February (-0.7°C).

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Average daylight in May /
Average sunshine in May
Keminmaa, Finland

Average daylight in May / Average sunshine in May - Keminmaa, Finland
  • Average daylight in May: 19h and 14min

The month with the longest days is July (Average daylight: 20h and 43min).
The month with the shortest days is December (Average daylight: 3h and 20min).

  • Average sunshine in May: 10h and 36min

The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).

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Average sunshine days in May
Keminmaa, Finland

Average sunshine days in May - Keminmaa, Finland
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).

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Average UV index in May
Keminmaa, Finland

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

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

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Average cloud cover in May
Keminmaa, Finland

Average cloud cover in May - Keminmaa, Finland
  • Average cloud cover in May: 48

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).

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Average visibility in May
Keminmaa, Finland

Average visibility in May - Keminmaa, Finland
  • Average visibility in May: 9km

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

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