April weather forecast
Otaniemi, Finland

April

Weather in April

April is a frosty spring month in Otaniemi, Finland, with an average temperature varying between 6°C (42.8°F) and 1.3°C (34.3°F).

Temperature

As Otaniemi transitions into April, a rise in the average high-temperature is observed, moving from a cold 0.7°C (33.3°F) in March to a chilly 6°C (42.8°F). Otaniemi experiences an average nighttime temperature of 1.3°C (34.3°F) in April, reflecting a minor difference from the day's peak.

Humidity

In Otaniemi, the average relative humidity in April is 80%.

Rainfall

The month with the least rainfall in Otaniemi is April, when the rain falls for 11.9 days and typically collects 27mm (1.06") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In April, it is snowing for 5.4 days. Throughout April, 46mm (1.81") of snow is accumulated. In Otaniemi, during the entire year, snow falls for 84.6 days and aggregates up to 688mm (27.09") of snow.

Sea temperature

In April, the average sea temperature in Otaniemi is 1.6°C (34.9°F).
Note: While swimming, this scenario rapidly escalates into a life-threatening situation. Breathing becomes unmanageable, impairing clear thinking. Utilizing a specialized swimsuit is vital to minimize thermal depletion.

Daylight

In Otaniemi, the average length of the day in April is 14h and 38min.
On the first day of April in Otaniemi, sunrise is at 06:43 and sunset at 20:05. On the last day of the month, sunrise is at 05:18 and sunset at 21:17 EEST.

Sunshine

In Otaniemi, the average sunshine in April is 7.2h.

UV index

The average daily maximum UV index in April in Otaniemi is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In April, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sun damage is advised. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

Is April cold in Otaniemi?
The high-temperature, in April, in Otaniemi, is 6°C (42.8°F), while the low-temperature averages to 1.3°C (34.3°F).
What is the average humidity in April in Otaniemi?
In Otaniemi, Finland, the average relative humidity in April is 80%.
What is the driest month in Otaniemi?
April is the month with the least rainfall in Otaniemi. Rain falls for 11.9 days and accumulates 27mm (1.06") of precipitation.
How much does it rain in Otaniemi in April?
In Otaniemi, Finland, in April, it is raining for 11.9 days, with typically 27mm (1.06") of accumulated precipitation.
How much does it snow in Otaniemi in April?
In April, in Otaniemi, Finland, it is snowing for 5.4 days. Throughout April, 46mm (1.81") of snow is accumulated.
How cold is the water in April in Otaniemi?
In Otaniemi, in April, the average water temperature is 1.6°C (34.9°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 April in Otaniemi?
The average day length in April in Otaniemi is 14h and 38min.
When is the sunrise / sunset in April in Otaniemi?
On the first day of April in Otaniemi, Finland, sunrise is at 06:43 and sunset at 20:05. On the last day of the month, sunrise is at 05:18 and sunset at 21:17 EEST.
How many hours of sunshine does Otaniemi have in April?
In April, the average sunshine duration is 7.2h.
How high is the UV index in April in Otaniemi?
In Otaniemi, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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 April
Otaniemi, Finland
  • Average high temperature in April: 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 April: 1.3°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).

Average pressure in April
Otaniemi, Finland
  • Average pressure in April: 1013.6mbar

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

Average wind speed in April
Otaniemi, Finland
  • Average wind speed in April: 14.4km/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).

Average humidity in April
Otaniemi, Finland
  • Average humidity in April: 80%

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

Average rainfall in April
Otaniemi, Finland
  • Average rainfall in April: 27mm

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

Average rainfall days in April
Otaniemi, Finland
  • Average rainfall days in April: 11.9 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).

Average snowfall in April
Otaniemi, Finland
  • Average snowfall in April: 46mm

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

Average snowfall days in April
Otaniemi, Finland
  • Average snowfall days in April: 5.4 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).

Average sea temperature in April
Otaniemi, Finland
  • Average sea temperature in April: 1.6°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).

Average daylight in April /
Average sunshine in April
Otaniemi, Finland
  • Average daylight in April: 14h and 4min

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 April: 7h 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).

Average sunshine days in April
Otaniemi, Finland
  • Average sunshine days in April: 12.5 days

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

Average UV index in April
Otaniemi, Finland
  • Average UV index in April: 3

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 April
Otaniemi, Finland
  • Average cloud cover in April: 52

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).

Average visibility in April
Otaniemi, Finland
  • Average visibility in April: 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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