April weather forecastHamatonbetsu, Japan
April
Weather in April
April in Hamatonbetsu, Japan, is a cold spring month, with an average temperature fluctuating between 5.7°C (42.3°F) and 0.3°C (32.5°F).Temperature
The start of April signals an increase in the average high-temperature, moving from a freezing cold -0.2°C (31.6°F) in March to a wintry 5.7°C (42.3°F). The temperature dips to an average of 0.3°C (32.5°F) during April nights.Humidity
In Hamatonbetsu, the average relative humidity in April is 81%.Rainfall
The months with the least rainfall are February and April Rain falls for 12.4 days and accumulates 44mm (1.73") of rain.Snowfall
January through May, October through December are months with snowfall. In Hamatonbetsu, during April, snow falls for 9.3 days and regularly aggregates up to 123mm (4.84") of snow. In Hamatonbetsu, during the entire year, snow falls for 114.8 days and aggregates up to 1355mm (53.35") of snow.Daylight
In Hamatonbetsu, the average length of the day in April is 13h and 30min.On the first day of April, sunrise is at 05:10 and sunset at 17:58. On the last day of the month, sunrise is at 04:20 and sunset at 18:34 JST.
Sunshine
April and May, with an average of 7.7h of sunshine, are months with the most sunshine.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Boost your sun resistance with garments that are densely woven yet spacious. 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
Hamatonbetsu, Japan
- Average high temperature in April: 5.7°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The months with the lowest average high temperature are January and February (-3.9°C).
- Average low temperature in April: 0.3°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (-8.6°C).
Average pressure in April
Hamatonbetsu, Japan
- Average pressure in April: 1011.2mbar
The month with the highest atmospheric pressure is October (1014.6mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in April
Hamatonbetsu, Japan
- Average wind speed in April: 15.3km/h
The windiest month (with the highest average wind speed) is December (19.3km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in April
Hamatonbetsu, Japan
- Average humidity in April: 81%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is October (76%).
Average rainfall in April
Hamatonbetsu, Japan
- Average rainfall in April: 44mm
The wettest month (with the highest rainfall) is August (122mm).
The driest months (with the least rainfall) are February and April (44mm).
Average rainfall days in April
Hamatonbetsu, Japan
- Average rainfall days in April: 12.4 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in April
Hamatonbetsu, Japan
- Average snowfall in April: 123mm
The month with the highest snowfall is December (300mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Hamatonbetsu, Japan
- Average snowfall days in April: 9.3 days
The month with the highest number of snowfall days is January (25.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Hamatonbetsu, Japan
- Average daylight in April: 13h and 30min
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 April: 7h and 42min
The months with the most sunshine are April and May (Average sunshine: 7h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in April
Hamatonbetsu, Japan
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is May (12.9 days).
The month with the least sunshine days is December (3.5 days).
Average UV index in April
Hamatonbetsu, 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, November and December (UV index 1).
Average cloud cover in April
Hamatonbetsu, Japan
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 87).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in April
Hamatonbetsu, Japan
- Average visibility in April: 9km
The months with the highest visibility are April, May, September and October (9km).
The months with the lowest visibility are January, February and December (7km).





