Wakkanai
Japan
Long-term weather forecast
Long-term weather forecast
23

May weather forecast and climate
Wakkanai, Japan

The last month of the spring, May, is a fresh month in Wakkanai, Japan, with average temperature ranging between max 12°C (53.6°F) and min 6°C (42.8°F).

Temperature

In May, the average high-temperature slightly increases, from a frosty 7.2°C (45°F) in April, to a cool 12°C (53.6°F). In May, the average low-temperature is 6°C (42.8°F).

Humidity

The average relative humidity in Wakkanai is 79%.

Rainfall

In Wakkanai, Japan, it is raining for 18 days, with typically 67.6mm (2.7") of accumulated precipitation. In Wakkanai, during the entire year, the rain falls for 261 days and collects up to 1062.8mm (41.8") of precipitation.

Snowfall

In Wakkanai snow does not fall through September.

Sea temperature

In May, the average sea temperature in Wakkanai is 8.1°C (46.6°F).
Note: Swimming in 8.1°C (46.6°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 Wakkanai, the average length of the day is 14.9h.

Sunshine

The month with the most sunshine in Wakkanai is May, with an average of 6h of sunshine.

UV index

The average daily maximum UV index in Wakkanai is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Wakkanai?

The average high-temperature, in May, in Wakkanai, is 12°C (53.6°F), while the average low-temperature is 6°C (42.8°F).

What is the average humidity in May in Wakkanai?

In May, the average relative humidity in Wakkanai, Japan, is 79%.

How much does it rain in Wakkanai in May?

In Wakkanai, during May, the rain falls for 18 days and regularly aggregates up to 67.6mm (2.7") of precipitation.

Does it snow in Wakkanai in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Wakkanai?

In Wakkanai snow does not fall in May through September.

What is the water temperature in May in Wakkanai?

In Wakkanai, the average seawater temperature in May is 8.1°C (46.6°F). Swimming in 8.1°C (46.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

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

In Wakkanai, the average length of the day in May is 14.9h.

What month has the most sunshine in Wakkanai?

May has the most sunshine of the year in Wakkanai, Japan, with an average of 6h of sunshine.

How long on average sun shines in May in Wakkanai?

The average sunshine in May in Wakkanai is 6h.

How high is the UV index in May in Wakkanai?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Wakkanai, Japan
  • Average high temperature in May: 12°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 May: 6°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 May - Wakkanai, Japan
  • Average humidity in May: 79%

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

Average rainfall in May - Wakkanai, Japan
  • Average rainfall in May: 67.6mm

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 May - Wakkanai, Japan
  • Average rainfall days in May: 18 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 May - Wakkanai, Japan
  • Average snowfall in May: 0mm

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 May - Wakkanai, Japan
  • Average snowfall days in May: 0 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 May - Wakkanai, Japan
  • Average sea temperature in May: 8.1°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 May / Average sunshine in May - Wakkanai, Japan
  • Average daylight in May: 14.9h

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 May: 6h

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

Average UV index in May - Wakkanai, Japan
  • Average UV index in May: 6

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).