May weather forecast
Houtskär, Finland

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Weather in May

May, the last month of the spring in Houtskär, is a frosty month, with an average temperature fluctuating between 6.3°C (43.3°F) and 8.5°C (47.3°F).

Temperature

As Houtskär transitions into May, a marginal rise in the average high-temperature is observed, moving from a cold 3.9°C (39°F) in April to a frosty 8.5°C (47.3°F). Houtskär's nights throughout May are marked by an average low temperature of 6.3°C (43.3°F), a minor drop from the day's high.

Humidity

In Houtskär, the average relative humidity in May is 81%.

Rainfall

In Houtskär, in May, during 9.7 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, there are 132.5 rainfall days, and 310mm (12.2") of precipitation is accumulated.

Snowfall

Months with snowfall in Houtskär are January through May, October through December. May is the last month it regularly snows in Houtskär. During 0.6 snowfall days, in May, Houtskär aggregates 8mm (0.31") of snow. Throughout the year, there are 38.5 snowfall days, and 160mm (6.3") of snow is accumulated.

Sea temperature

In Houtskär, Finland, in May, the average water temperature is 3.8°C (38.8°F).
Note: While swimming, this is deemed life-threatening and exceptionally hazardous. The icy water induces intense pain and causes swift hyperventilation. Employing a specialized swimsuit is required to offset thermal harm.

Daylight

The average length of the day in May in Houtskär is 17h and 15min.
On the first day of May in Houtskär, sunrise is at 05:29 and sunset at 21:33. On the last day of the month, sunrise is at 04:21 and sunset at 22:42 EEST.

Sunshine

The average sunshine in May in Houtskär is 10.6h.

UV index

In May, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 3 in May translates into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the temperature in May in Houtskär?

The high-temperature during May is 8.5°C (47.3°F) and the low-temperature is 6.3°C (43.3°F).

What is the average humidity in May in Houtskär?

The average relative humidity in May in Houtskär, Finland, is 81%.

How much does it rain in Houtskär in May?

In May, in Houtskär, the rain falls for 9.7 days. Throughout May, 20mm (0.79") of precipitation is accumulated.

What is the last month it snows in Houtskär?

May is the last month it regularly snows in Houtskär, Finland. During 0.6 snowfall days, in May, Houtskär aggregates 8mm (0.31") of snow.

What is the sea temperature in May in Houtskär?

In May, the average sea temperature is 3.8°C (38.8°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in May in Houtskär?

In May, the average day length is 17h and 15min.

What time are sunrise and sunset in May in Houtskär?

On the first day of May in Houtskär, sunrise is at 05:29 and sunset at 21:33. On the last day of the month, sunrise is at 04:21 and sunset at 22:42 EEST.

How long on average sun shines in May in Houtskär?

The average sunshine duration in May in Houtskär is 10.6h.

What is the UV index intensity in May in Houtskär?

In Houtskär, Finland, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Houtskär, Finland

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

The warmest month (with the highest average high temperature) is August (18.1°C).
The month with the lowest average high temperature is February (0.3°C).

  • Average low temperature in May: 6.3°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-1.7°C).

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Average pressure in May
Houtskär, Finland

Average pressure in May - Houtskär, Finland
  • Average pressure in May: 1015mbar

The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).

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Average wind speed in May
Houtskär, Finland

Average wind speed in May - Houtskär, Finland
  • Average wind speed in May: 21.3km/h

The windiest month (with the highest average wind speed) is December (34.1km/h).
The calmest month (with the lowest average wind speed) is July (21.2km/h).

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Average humidity in May
Houtskär, Finland

Average humidity in May - Houtskär, Finland
  • Average humidity in May: 81%

The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August, September and October (78%).

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Average rainfall in May
Houtskär, Finland

Average rainfall in May - Houtskär, Finland
  • Average rainfall in May: 20mm

The wettest month (with the highest rainfall) is September (38mm).
The driest month (with the least rainfall) is April (12mm).

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Average rainfall days in May
Houtskär, Finland

Average rainfall days in May - Houtskär, Finland
  • Average rainfall days in May: 9.7 days

The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in May
Houtskär, Finland

Average snowfall in May - Houtskär, Finland
  • Average snowfall in May: 8mm

The month with the highest snowfall is January (41mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Houtskär, Finland

Average snowfall days in May - Houtskär, Finland
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in May
Houtskär, Finland

Average sea temperature in May - Houtskär, Finland
  • Average sea temperature in May: 3.8°C

The best month for swimming (with the highest average sea temperature) is August (12.3°C).
The coldest month (with the lowest average sea temperature) is March (-0.2°C).

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

Average daylight in May / Average sunshine in May - Houtskär, Finland
  • Average daylight in May: 17h and 2min

The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).

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Average sunshine days in May
Houtskär, Finland

Average sunshine days in May - Houtskär, Finland
  • Average sunshine days in May: 19.3 days

The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is December (8.9 days).

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Average UV index in May
Houtskär, Finland

Average UV index in May - Houtskär, 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, February, March and December (UV index 1).

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Average cloud cover in May
Houtskär, Finland

Average cloud cover in May - Houtskär, Finland
  • Average cloud cover in May: 36

The months with the most cloud cover are January and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in May
Houtskär, Finland

Average visibility in May - Houtskär, Finland
  • Average visibility in May: 10km

The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).

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Houtskär, Finland

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