Wakkanai
Japan
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Wakkanai, Japan

April in Wakkanai, Japan, is a chilly spring month, with average temperature ranging between max 7.2°C (45°F) and min 1.8°C (35.2°F).

Temperature

In Wakkanai, the average high-temperature rises, from a wintry 1.2°C (34.2°F) in March, to a chilly 7.2°C (45°F). In April, in Wakkanai, the average low-temperature is 1.8°C (35.2°F).

Humidity

The average relative humidity in April is 75%.

Rainfall

The month with the least rainfall in Wakkanai is April when the rain falls for 17 days and typically collects 49mm (1.9") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.2 snowfall days, Wakkanai aggregates 210mm (8.3") of snow. Throughout the year, in Wakkanai, there are 110.1 snowfall days, and 6530mm (257.1") of snow is accumulated.

Sea temperature

In April, the average sea temperature in Wakkanai is 5.3°C (41.5°F).
Note: Swimming in 5.3°C (41.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Wakkanai, the average length of the day in April is 13.5h.

Sunshine

The average sunshine in Wakkanai is 5.7h.

UV index

In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Wakkanai?

In Wakkanai, in April, the average high-temperature is 7.2°C (45°F), and the average low-temperature is 1.8°C (35.2°F).

What is the average humidity in April in Wakkanai?

In April, the average relative humidity in Wakkanai, Japan, is 75%.

How many days does it rain in April in Wakkanai?

In April, in Wakkanai, the rain falls for 17 days. Throughout April, 49mm (1.9") of precipitation is accumulated.

What is the driest month in Wakkanai?

April is the month with the least rainfall in Wakkanai. Rain falls for 17 days and accumulates 49mm (1.9") of precipitation.

What is the last month it snows in Wakkanai?

April is the last month it regularly snows in Wakkanai, Japan. During 1.2 snowfall days, in April, Wakkanai aggregates 210mm (8.3") of snow.

How cold is the water in April in Wakkanai?

In Wakkanai, the average seawater temperature in April is 5.3°C (41.5°F). Swimming in 5.3°C (41.5°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.

What is the average length of the day in April in Wakkanai?

In Wakkanai, the average length of the day in April is 13.5h.

How many hours of sunshine does Wakkanai have in April?

In April, the average sunshine in Wakkanai is 5.7h.

What is the UV index intensity in April in Wakkanai?

In Wakkanai, Japan, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in April - Wakkanai, Japan
  • Average high temperature in April: 7.2°C

The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (-2.7°C).

  • Average low temperature in April: 1.8°C

The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (-7.1°C).

Average humidity in April - Wakkanai, Japan
  • Average humidity in April: 75%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is November (67%).

Average rainfall in April - Wakkanai, Japan
  • Average rainfall in April: 49mm

The wettest month (with the highest rainfall) is October (134.1mm).
The driest month (with the lowest rainfall) is April (49mm).

Average rainfall days in April - Wakkanai, Japan
  • Average rainfall days in April: 17 days

The month with the highest number of rainy days is January (30 days).
Months with the lowest number of rainy days are April, June and September (17 days).

Average snowfall in April - Wakkanai, Japan
  • Average snowfall in April: 210mm

The month with the highest snowfall is January (1730mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

Average snowfall days in April - Wakkanai, Japan
  • Average snowfall days in April: 1.2 days

The month with the highest number of snowfall days is December (28.2 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in April - Wakkanai, Japan
  • Average sea temperature in April: 5.3°C

The best month for swimming (with the highest average sea temperature) is August (19.7°C).
The coldest month (with the lowest average sea temperature) is February (2.7°C).

Average daylight in April / Average sunshine in April - Wakkanai, Japan
  • Average daylight in April: 13.5h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in April: 5.7h

The month with most sunshine is May (Average sunshine: 6h).
The month with least sunshine is December (Average sunshine: 1h).

Average UV index in April - Wakkanai, Japan
  • Average UV index in April: 4

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).