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
Weather in May
Temperature
As May arrives, Ishikari's weather shows an increase in high-temperatures, moving from April's frosty 8.3°C (46.9°F) to a mild 15.2°C (59.4°F). Ishikari records an average low of 7.1°C (44.8°F) throughout the nights in May.Humidity
In Ishikari, the average relative humidity in May is 78%.Rainfall
In Ishikari, during May, the rain falls for 16.8 days and regularly aggregates up to 57mm (2.24") of precipitation. Throughout the year, there are 169.9 rainfall days, and 854mm (33.62") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Ishikari. During 0.3 snowfall days, in May, Ishikari aggregates 1mm (0.04") of snow. Throughout the year, in Ishikari, there are 111.1 snowfall days, and 1455mm (57.28") of snow is accumulated.Sea temperature
In Ishikari, Japan, the average seawater temperature in May is 10.1°C (50.2°F).Note: Swimming in 10.1°C (50.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
In Ishikari, Japan, the average length of the day in May is 14h and 40min.On the first day of May, sunrise is at 04:27 and sunset at 18:35. On the last day of the month, sunrise is at 03:58 and sunset at 19:06 JST.
Sunshine
The months with the most sunshine in Ishikari are May and August, with an average of 9h of sunshine.UV index
The average daily maximum UV index in May in Ishikari is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during May leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Ishikari in May?
What is the average humidity in May in Ishikari?
How much does it rain in Ishikari in May?
What is the last month it snows in Ishikari?
What is the sea water temperature in May in Ishikari?
How many hours of daylight does Ishikari have in May?
When are sunrise and sunset in May in Ishikari?
What are the months with the most sunshine in Ishikari?
How many hours of sunshine does Ishikari have in May?
What is the UV index reading in May in Ishikari?
Average temperature in May
Ishikari, Japan
- Average high temperature in May: 15.2°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in May: 7.1°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (-8.5°C).
Average pressure in May
Ishikari, Japan
- Average pressure in May: 1010.2mbar
The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in May
Ishikari, Japan
- Average wind speed in May: 12.7km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).
Average humidity in May
Ishikari, Japan
- Average humidity in May: 78%
The months with the highest relative humidity are January and July (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in May
Ishikari, Japan
- Average rainfall in May: 57mm
The wettest month (with the highest rainfall) is August (123mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days in May
Ishikari, Japan
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Ishikari, Japan
- Average snowfall in May: 1mm
The month with the highest snowfall is January (377mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Ishikari, Japan
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (27.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Ishikari, Japan
- Average sea temperature in May: 10.1°C
The best month for swimming (with the highest average sea temperature) is August (21.6°C).
The coldest months (with the lowest average sea temperature) are February and March (5.3°C).
Average daylight in May /
Average sunshine in May
Ishikari, Japan
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 9h
The months with the most sunshine are May and August (Average sunshine: 9h).
The month with the least sunshine is January (Average sunshine: 2h).
Average sunshine days in May
Ishikari, Japan
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is May (12.1 days).
The month with the least sunshine days is December (2.2 days).
Average UV index in May
Ishikari, Japan
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Ishikari, Japan
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in May
Ishikari, Japan
- Average visibility in May: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February and December (7km).
Ishikari, Japan
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