May weather forecast
Otaniemi, Finland

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Weather in May

The last month of the spring, May, is a fresh month in Otaniemi, Finland, with an average temperature fluctuating between 6.9°C (44.4°F) and 12.6°C (54.7°F).

Temperature

The shift from April to May is marked by an increase in the average high-temperature, moving from a chilly 6°C (42.8°F) to a cool 12.6°C (54.7°F). Otaniemi experiences a consistent average temperature of 6.9°C (44.4°F) throughout the nights in May.

Humidity

With an average relative humidity of 72%, May is the least humid month in Otaniemi, Finland.

Rainfall

In Otaniemi, in May, it is raining for 12 days, with typically 29mm (1.14") of accumulated precipitation. In Otaniemi, during the entire year, the rain falls for 144.4 days and collects up to 463mm (18.23") of precipitation.

Snowfall

Months with snowfall in Otaniemi, Finland, are January through May, October through December. May is the last month it regularly snows in Otaniemi. During 0.8 snowfall days, in May, Otaniemi aggregates 14mm (0.55") of snow. In Otaniemi, during the entire year, snow falls for 84.6 days and aggregates up to 688mm (27.09") of snow.

Sea temperature

In Otaniemi, in May, the average water temperature is 6.8°C (44.2°F).
Note: Swimming in 6.8°C (44.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Otaniemi, Finland, the average length of the day in May is 17h and 14min.
On the first day of the month, sunrise is at 05:15 and sunset at 21:19. On the last day of May, in Otaniemi, Finland, sunrise is at 04:08 and sunset at 22:28 EEST.

Sunshine

In Otaniemi, the average sunshine in May is 10.1h.

UV index

In Otaniemi, Finland, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the UV index of 4 transforms into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What are May temperatures in Otaniemi?

In Otaniemi, 12.6°C (54.7°F) is the average high-temperature and 6.9°C (44.4°F) is the average low-temperature during May.

What is the least humid month in Otaniemi?

With an average relative humidity of 72%, May is the least humid month.

What is the average humidity in May in Otaniemi?

In Otaniemi, Finland, the average relative humidity in May is 72%.

How many days does it rain in May in Otaniemi?

In May, the rain falls for 12 days. Throughout May, 29mm (1.14") of precipitation is accumulated.

What is the last month it snows in Otaniemi?

May is the last month it regularly snows. During 0.8 snowfall days, in May, Otaniemi aggregates 14mm (0.55") of snow.

How cold is the water in May in Otaniemi?

In May, the average sea temperature in Otaniemi, Finland, is 6.8°C (44.2°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Otaniemi have in May?

The average day length in May is 17h and 14min.

When are sunrise and sunset in May in Otaniemi?

On the first day of May in Otaniemi, Finland, sunrise is at 05:15 and sunset at 21:19. On the last day of the month, sunrise is at 04:08 and sunset at 22:28 EEST.

How many hours of sunshine does Otaniemi have in May?

The average sunshine duration in May is 10.1h.

What is the UV index intensity in May in Otaniemi?

In Otaniemi, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Otaniemi, Finland

Average temperature in May - Otaniemi, Finland
  • Average high temperature in May: 12.6°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.2°C).

  • Average low temperature in May: 6.9°C

The month with the highest average low temperature is July (14.5°C).
The coldest months (with the lowest average low temperature) are January and February (-5.5°C).

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Average pressure in May
Otaniemi, Finland

Average pressure in May - Otaniemi, Finland
  • Average pressure in May: 1014.9mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).

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Average wind speed in May
Otaniemi, Finland

Average wind speed in May - Otaniemi, Finland
  • Average wind speed in May: 13.7km/h

The windiest month (with the highest average wind speed) is December (21.1km/h).
The calmest month (with the lowest average wind speed) is May (13.7km/h).

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Average humidity in May
Otaniemi, Finland

Average humidity in May - Otaniemi, Finland
  • Average humidity in May: 72%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in May
Otaniemi, Finland

Average rainfall in May - Otaniemi, Finland
  • Average rainfall in May: 29mm

The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (27mm).

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Average rainfall days in May
Otaniemi, Finland

Average rainfall days in May - Otaniemi, Finland
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (6.4 days).

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Average snowfall in May
Otaniemi, Finland

Average snowfall in May - Otaniemi, Finland
  • Average snowfall in May: 14mm

The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Otaniemi, Finland

Average snowfall days in May - Otaniemi, Finland
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (18.3 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
Otaniemi, Finland

Average sea temperature in May - Otaniemi, Finland
  • Average sea temperature in May: 6.8°C

The best month for swimming (with the highest average sea temperature) is August (18.7°C).
The coldest month (with the lowest average sea temperature) is March (0.1°C).

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

Average daylight in May / Average sunshine in May - Otaniemi, Finland
  • Average daylight in May: 17h and 1min

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 1min

The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

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Average sunshine days in May
Otaniemi, Finland

Average sunshine days in May - Otaniemi, Finland
  • Average sunshine days in May: 17 days

The month with the most sunshine days is May (17 days).
The month with the least sunshine days is December (5.6 days).

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Average UV index in May
Otaniemi, Finland

Average UV index in May - Otaniemi, Finland
  • 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).

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Average cloud cover in May
Otaniemi, Finland

Average cloud cover in May - Otaniemi, Finland
  • Average cloud cover in May: 39

The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in May
Otaniemi, Finland

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

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).

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Otaniemi, Finland

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