May weather forecast
Keminmaa, Finland

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Weather in May

May is the signal that winter is finally over in Keminmaa. The landscape shifts from snow-clad to verdant green, as temperatures begin to climb, resulting in milder weather comfortable for outdoor activities. In clear contrast to the snow-logged conditions present in April, May sees nearly no snowfall. Although the rainfall increases marginally from April, longer daylight hours are accounted for more sunshine than April ever experiences. The transition to June promises to bring even warmer temperatures, heralding the onset of summer.

Temperature

The start of May signals an increase in the average high-temperature, moving from a cold 1.9°C in April to a chilly 8.5°C. Keminmaa records a mild decrease in temperature during the nights of May, averaging an icy 3.8°C.

Humidity

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

Rainfall

In May, in Keminmaa, the rain falls for 13.3 days. Throughout May, 36mm of precipitation is accumulated. Throughout the year, there are 127 rainfall days, and 472mm of precipitation is accumulated.

Snowfall

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

Sea temperature

In Keminmaa, in May, the average water temperature is 3°C.
Note: In relation to swimming, this scenario is excessively cold, perilous, and a direct threat to life. Hypothermia strikes rapidly in the absence of insulated waterproof gear.

Daylight

The average length of the day in May is 19h and 14min.
On the first day of the month, sunrise is at 04:40 and sunset at 21:57. On the last day of May, in Keminmaa, sunrise is at 02:43 and sunset at 23:55 EEST.

Sunshine

The average sunshine in May in Keminmaa is 10.6h.

UV index

The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, an average UV index of 3 transforms into the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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FAQ

What is the usual temperature for Keminmaa in May?

In Keminmaa, 8.5°C is the average high-temperature and 3.8°C is the average low-temperature during May.

What is the average humidity in May in Keminmaa?

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

How much does it rain in Keminmaa in May?

In Keminmaa, Finland, in May, during 13.3 rainfall days, 36mm of precipitation is typically accumulated.

How much does it snow in Keminmaa in May?

In May, in Keminmaa, Finland, it is snowing for 3.4 days. Throughout May, 37mm of snow is accumulated.

How cold is the water in May in Keminmaa?

In May, the average sea temperature in Keminmaa, Finland, is 3°C. 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.

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 04:40 and sunset at 21:57. On the last day of the month, in Keminmaa, Finland, sunrise is at 02:43 and sunset at 23:55 EEST.

How long on average sun shines in May in Keminmaa?

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

What is the UV index intensity in May in Keminmaa?

The average daily maximum UV index in May is 3. A UV Index estimate 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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 1min

The month with the longest days is July (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 3h and 18min).

  • Average sunshine in May: 10h and 4min

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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Keminmaa, Finland

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