April weather forecastKushiro, Japan
April
Weather in April
April in Kushiro indicates the onset of spring with a marked increase in temperatures and longer daylight hours. The snowfall figures take a nosedive, not surpassing 32mm (1.26") for the month. April heralds the arrival of Sakura (cherry blossom) season, and its beauty is augmented by the scarce rainy days and warming temperatures. While brief rain showers may occur, they don't disturb the persistent spring gaiety as Kushiro prepares to embrace the approaching summer.Temperature
The arrival of April signals an increase in the average high-temperature, moving from a wintry 2°C (35.6°F) in March to a frosty 8.3°C (46.9°F). Throughout April, the nighttime temperature averages to an icy 0.9°C (33.6°F).Humidity
The months with the lowest humidity are April, November and December, with an average relative humidity of 76%.Rainfall
In Kushiro, during April, the rain falls for 8.3 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, there are 105.6 rainfall days, and 625mm (24.61") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Kushiro, Japan. In April, it is snowing for 2.8 days. Throughout April, 32mm (1.26") of snow is accumulated. In Kushiro, Japan, during the entire year, snow falls for 25 days and aggregates up to 314mm (12.36") of snow.Sea temperature
In Kushiro, the average seawater temperature in April is 3.1°C (37.6°F).Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.
Daylight
In April, the average length of the day in Kushiro is 13h and 24min.On the first day of April in Kushiro, Japan, sunrise is at 05:04 and sunset at 17:48. On the last day of the month, sunrise is at 04:17 and sunset at 18:22 JST.
Sunshine
April and May, with an average of 8.1h of sunshine, are months with the most sunshine in Kushiro.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Kushiro, Japan
- Average high temperature in April: 8.3°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (-2.4°C).
- Average low temperature in April: 0.9°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is February (-8.4°C).
Average pressure in April
Kushiro, Japan
- Average pressure in April: 1012.3mbar
The month with the highest atmospheric pressure is October (1015.6mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in April
Kushiro, Japan
- Average wind speed in April: 12.5km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is July (8.5km/h).
Average humidity in April
Kushiro, Japan
- Average humidity in April: 76%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April, November and December (76%).
Average rainfall in April
Kushiro, Japan
- Average rainfall in April: 44mm
The wettest month (with the highest rainfall) is August (109mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in April
Kushiro, Japan
- Average rainfall days in April: 8.3 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in April
Kushiro, Japan
- Average snowfall in April: 32mm
The month with the highest snowfall is February (77mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in April
Kushiro, Japan
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is March (6.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Kushiro, Japan
- Average sea temperature in April: 3.1°C
The best month for swimming (with the highest average sea temperature) is August (18.1°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).
Average daylight in April /
Average sunshine in April
Kushiro, Japan
- Average daylight in April: 13h and 24min
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 6min
The months with the most sunshine are April and May (Average sunshine: 8h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in April
Kushiro, Japan
- Average sunshine days in April: 20 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in April
Kushiro, Japan
- Average UV index in April: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Kushiro, Japan
- Average cloud cover in April: 43
The month with the most cloud cover is July (Cloud cover 62).
The months with the least cloud cover are October and November (Cloud cover 37).
Average visibility in April
Kushiro, Japan
- Average visibility in April: 9km
The month with the highest visibility is December (10km).
The months with the lowest visibility are June, July and August (7km).





