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 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
April
Weather in April
Temperature
As April arrives, a rise in the average high-temperature is observed, moving from a cold 2.5°C (36.5°F) in March to a frosty 8.5°C (47.3°F). Shiraoi's temperature drops to an average low of 2.6°C (36.7°F) during the nights of April.Humidity
The months with the lowest humidity in Shiraoi are April and October, with an average relative humidity of 75%.Rainfall
In April, the rain falls for 11.3 days. Throughout April, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 119.1 rainfall days, and 428mm (16.85") of precipitation is accumulated.Snowfall
Months with snowfall in Shiraoi are January through April, November and December. April is the last month it regularly snows. During 2.3 snowfall days, in April, Shiraoi aggregates 36mm (1.42") of snow. Throughout the year, in Shiraoi, there are 43.3 snowfall days, and 428mm (16.85") of snow is accumulated.Daylight
The average length of the day in April is 13h and 23min.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 04:30 and sunset at 18:33 JST.
Sunshine
In April, the average sunshine in Shiraoi, Japan, is 9h.UV index
In April, the average daily maximum UV index in Shiraoi is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 3 during April, leads to the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Shiraoi in April?
What are the least humid months in Shiraoi?
What is the average humidity in April in Shiraoi?
How many days does it rain in April in Shiraoi?
What is the last month it snows in Shiraoi?
What is the average length of the day in April in Shiraoi?
What time are sunrise and sunset in April in Shiraoi?
How long on average sun shines in April in Shiraoi?
How high is the UV index in April in Shiraoi?
Average temperature in April
Shiraoi, Japan
- Average high temperature in April: 8.5°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 (-1.4°C).
- Average low temperature in April: 2.6°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (-7.2°C).
Average pressure in April
Shiraoi, Japan
- Average pressure in April: 1012.5mbar
The month with the highest atmospheric pressure is November (1016.3mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in April
Shiraoi, Japan
- Average wind speed in April: 14.2km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity in April
Shiraoi, Japan
- Average humidity in April: 75%
The month with the highest relative humidity is July (87%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in April
Shiraoi, Japan
- Average rainfall in April: 30mm
The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in April
Shiraoi, Japan
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (14.8 days).
The months with the least rainy days are January and February (3.9 days).
Average snowfall in April
Shiraoi, Japan
- Average snowfall in April: 36mm
The month with the highest snowfall is February (119mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Shiraoi, Japan
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Shiraoi, 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: 9h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in April
Shiraoi, Japan
- Average sunshine days in April: 15.9 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in April
Shiraoi, Japan
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Shiraoi, Japan
- Average cloud cover in April: 40
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in April
Shiraoi, Japan
- Average visibility in April: 10km
The months with the highest visibility are January, April, September, October, November and December (10km).
The month with the lowest visibility is July (8km).
