Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
With the transition into May, Wakkanai experiences a subtle uplift in average high-temperatures, adjusting from a cold 5°C (41°F) in April to a frosty 9.8°C (49.6°F). In Wakkanai, the average low-temperature during May nights tends to settle at 6.7°C (44.1°F), indicating a slight drop from the daytime peak.Humidity
In Wakkanai, the average relative humidity in May is 82%.Rainfall
In Wakkanai, during May, the rain falls for 13 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Wakkanai, Japan, there are 134.7 rainfall days, and 731mm (28.78") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Wakkanai aggregates 4mm (0.16") of snow. In Wakkanai, during the entire year, snow falls for 88.9 days and aggregates up to 759mm (29.88") of snow.Sea temperature
In Wakkanai, the average seawater temperature in May is 8.1°C (46.6°F).Note: If planning to swim in 8.1°C (46.6°F) under 10°C (50°F), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 13°C (55.4°F) is not much warmer.
Daylight
In May, the average length of the day in Wakkanai is 14h and 53min.On the first day of May, sunrise is at 04:21 and sunset at 18:39. On the last day of the month, sunrise is at 03:48 and sunset at 19:13 JST.
Sunshine
The average sunshine in May in Wakkanai is 8.2h.UV index
The average daily maximum UV index in May in Wakkanai is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 3 during May morphs into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Wakkanai in May?
What is the average humidity in May in Wakkanai?
How many days does it rain in May in Wakkanai?
What is the last month it snows in Wakkanai?
What is the water temperature in May in Wakkanai?
What is the average length of the day in May in Wakkanai?
When are sunrise and sunset in May in Wakkanai?
How long on average sun shines in May in Wakkanai?
What is the UV index reading in May in Wakkanai?
Average temperature in May
Wakkanai, Japan
- Average high temperature in May: 9.8°C
The warmest month (with the highest average high temperature) is August (20.3°C).
The month with the lowest average high temperature is January (-2.9°C).
- Average low temperature in May: 6.7°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (-5.7°C).
Average pressure in May
Wakkanai, Japan
- Average pressure in May: 1009.8mbar
The months with the highest atmospheric pressure are October and November (1014.1mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed in May
Wakkanai, Japan
- Average wind speed in May: 21.5km/h
The windiest month (with the highest average wind speed) is December (28.3km/h).
The calmest month (with the lowest average wind speed) is July (17.8km/h).
Average humidity in May
Wakkanai, Japan
- Average humidity in May: 82%
The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Wakkanai, Japan
- Average rainfall in May: 49mm
The wettest month (with the highest rainfall) is August (102mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in May
Wakkanai, Japan
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is October (18.4 days).
The month with the least rainy days is January (2.1 days).
Average snowfall in May
Wakkanai, Japan
- Average snowfall in May: 4mm
The month with the highest snowfall is December (175mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Wakkanai, Japan
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are 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: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 6min).
Average sunshine days in May
Wakkanai, Japan
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is May (15.3 days).
The month with the least sunshine days is December (2 days).
Average UV index in May
Wakkanai, Japan
- Average UV index in May: 3
The months with the highest UV index are July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Wakkanai, Japan
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 90).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in May
Wakkanai, Japan
- Average visibility in May: 9km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January and December (7km).
