April weather forecastTenno, Japan
April weather for Tenno, Japan: April is a fresh spring month in Tenno, Japan, with an average temperature ranging between max 10.9°C (51.6°F) and min 5.9°C (42.6°F). April and October, with an average relative humidity of 74%, are the least humid months in Tenno, Japan.
April
Weather in April
April is a fresh spring month in Tenno, Japan, with an average temperature ranging between max 10.9°C (51.6°F) and min 5.9°C (42.6°F).Temperature
Tenno, Japan, in April experiences an increase in the average high-temperature, moving from March's cold 5.8°C (42.4°F) to a cool 10.9°C (51.6°F). The low temperature average during April reflects a slight decrease to a wintry 5.9°C (42.6°F) from the day's peak.Humidity
The months with the lowest humidity are April and October, with an average relative humidity of 74%.Rainfall
In Tenno, in April, during 16.4 rainfall days, 74mm (2.91") of precipitation is typically accumulated. Throughout the year, in Tenno, there are 190.3 rainfall days, and 1176mm (46.3") of precipitation is accumulated.Snowfall
Months with snowfall in Tenno are January through April, November and December. April is the last month it regularly snows. During 1.3 snowfall days, in April, Tenno aggregates 14mm (0.55") of snow. Throughout the year, in Tenno, Japan, there are 66.2 snowfall days, and 833mm (32.8") of snow is accumulated.Sea temperature
In April, the average sea temperature is 10.4°C (50.7°F).Note: Swimming in 10.4°C (50.7°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
Daylight
In Tenno, Japan, the average length of the day in April is 13h and 16min.On the first day of April in Tenno, sunrise is at 05:23 and sunset at 18:04. On the last day of the month, sunrise is at 04:41 and sunset at 18:33 JST.
Sunshine
The average sunshine in April is 8.5h.UV index
The average daily maximum UV index in April in Tenno is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during April leads to these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Tenno, Japan
- Average high temperature in April: 10.9°C
The warmest month (with the highest average high temperature) is August (26.7°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in April: 5.9°C
The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).
Average pressure in April
Tenno, Japan
- Average pressure in April: 1014.1mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in April
Tenno, Japan
- Average wind speed in April: 16.9km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in April
Tenno, Japan
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are April and October (74%).
Average rainfall in April
Tenno, Japan
- Average rainfall in April: 74mm
The wettest month (with the highest rainfall) is December (138mm).
The driest month (with the least rainfall) is May (56mm).
Average rainfall days in April
Tenno, Japan
- Average rainfall days in April: 16.4 days
The month with the highest number of rainy days is November (21.6 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in April
Tenno, Japan
- Average snowfall in April: 14mm
The month with the highest snowfall is January (259mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Tenno, Japan
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Tenno, Japan
- Average sea temperature in April: 10.4°C
The best month for swimming (with the highest average sea temperature) is August (25.8°C).
The coldest month (with the lowest average sea temperature) is March (9.3°C).
Average daylight in April /
Average sunshine in April
Tenno, Japan
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in April
Tenno, Japan
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is May (14.4 days).
The month with the least sunshine days is January (1.4 days).
Average UV index in April
Tenno, Japan
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Tenno, Japan
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 86).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in April
Tenno, Japan
- Average visibility in April: 9km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is January (7km).





