Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival coincides with a rise in the average high-temperature, moving from March's wintry 1.3°C (34.3°F) to a frosty 8.3°C (46.9°F). Ishikari's average low-temperature for the month of April records at a cold 1.7°C (35.1°F).Humidity
April and October, with an average relative humidity of 77%, are the least humid months.Rainfall
April is the month with the least rainfall. Rain falls for 14.6 days and accumulates 45mm (1.77") of precipitation.Snowfall
January through May, October through December are months with snowfall in Ishikari. In Ishikari, Japan, during April, snow falls for 5.3 days and regularly aggregates up to 49mm (1.93") 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, in April, the average water temperature is 7.2°C (45°F).Note: If planning to swim in 7.2°C (45°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 Ishikari, the average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 05:16 and sunset at 18:00. On the last day of the month, sunrise is at 04:29 and sunset at 18:34 JST.
Sunshine
The average sunshine in April in Ishikari is 8.4h.UV index
In Ishikari, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Ishikari?
What are the least humid months in Ishikari?
What is the average humidity in April in Ishikari?
What is the driest month in Ishikari?
How much does it rain in Ishikari in April?
How many days does it snow in April in Ishikari?
How cold is the water in April in Ishikari?
What is the average length of the day in April in Ishikari?
When are sunrise and sunset in April in Ishikari?
How many hours of sunshine does Ishikari have in April?
What is the UV index reading in April in Ishikari?
Average temperature in April
Ishikari, Japan
- Average high temperature in April: 8.3°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 April: 1.7°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 April
Ishikari, Japan
- Average pressure in April: 1012.2mbar
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 April
Ishikari, Japan
- Average wind speed in April: 14.3km/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 April
Ishikari, Japan
- Average humidity in April: 77%
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 April
Ishikari, Japan
- Average rainfall in April: 45mm
The wettest month (with the highest rainfall) is August (123mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days in April
Ishikari, Japan
- Average rainfall days in April: 14.6 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 April
Ishikari, Japan
- Average snowfall in April: 49mm
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 April
Ishikari, Japan
- Average snowfall days in April: 5.3 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 April
Ishikari, Japan
- Average sea temperature in April: 7.2°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 April /
Average sunshine in April
Ishikari, Japan
- Average daylight in April: 13h and 2min
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 April: 8h and 2min
The months with the most sunshine are May and August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in April
Ishikari, Japan
- Average sunshine days in April: 10.4 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 April
Ishikari, Japan
- Average UV index in April: 3
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 April
Ishikari, Japan
- Average cloud cover in April: 44
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 April
Ishikari, Japan
- Average visibility in April: 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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