April weather forecastTomamae, Japan
April
Weather in April
April in Tomamae, Japan, is a chilly spring month, with an average temperature ranging between max 6.3°C (43.3°F) and min 2.1°C (35.8°F).Temperature
With the onset of April, Tomamae's average high-temperature experiences a rise, moving from March's wintry 1.1°C (34°F) to a chilly 6.3°C (43.3°F). April nights in Tomamae document an average temperature reading of 2.1°C (35.8°F).Humidity
In April, the average relative humidity in Tomamae is 78%.Rainfall
April is the month with the least rainfall. Rain falls for 12.8 days and accumulates 42mm (1.65") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Tomamae, in April, snow falls for 5.3 days, with typically accumulated 56mm (2.2") of snow. In Tomamae, during the entire year, snow falls for 93.9 days and aggregates up to 1120mm (44.09") of snow.Daylight
The average length of the day in April is 13h and 28min.On the first day of the month, sunrise is at 05:14 and sunset at 18:00. On the last day of April, sunrise is at 04:25 and sunset at 18:35 JST.
Sunshine
In April, the average sunshine in Tomamae is 8.4h.UV index
In April, the average daily maximum UV index in Tomamae is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Tomamae, Japan
- Average high temperature in April: 6.3°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The months with the lowest average high temperature are January and February (-2.5°C).
- Average low temperature in April: 2.1°C
The month with the highest average low temperature is August (17.5°C).
The coldest month (with the lowest average low temperature) is February (-6.6°C).
Average pressure in April
Tomamae, Japan
- Average pressure in April: 1011.5mbar
The months with the highest atmospheric pressure are October and November (1015mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed in April
Tomamae, Japan
- Average wind speed in April: 18.4km/h
The windiest month (with the highest average wind speed) is December (23.7km/h).
The calmest month (with the lowest average wind speed) is July (11.8km/h).
Average humidity in April
Tomamae, Japan
- Average humidity in April: 78%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Tomamae, Japan
- Average rainfall in April: 42mm
The wettest month (with the highest rainfall) is August (125mm).
The driest month (with the least rainfall) is April (42mm).
Average rainfall days in April
Tomamae, Japan
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is October (18.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in April
Tomamae, Japan
- Average snowfall in April: 56mm
The month with the highest snowfall is December (279mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Tomamae, Japan
- Average snowfall days in April: 5.3 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Tomamae, Japan
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in April
Tomamae, Japan
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is December (3.1 days).
Average UV index in April
Tomamae, 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
Tomamae, Japan
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 88).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in April
Tomamae, Japan
- Average visibility in April: 9km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is December (7km).





