April weather forecastKoshihara, Japan
April
Weather in April
April, like March, is another pleasant spring month in Koshihara, Japan, with an average temperature ranging between min 20.4°C (68.7°F) and max 22.2°C (72°F).Temperature
April notes an average high-temperature of a still pleasant 22.2°C (72°F), subtly differing from March's 20.6°C (69.1°F). Nights in April showcase an average temperature of 20.4°C (68.7°F), slightly cooler than the daytime.Humidity
The average relative humidity in April is 77%.Rainfall
In April, the rain falls for 16.5 days. Throughout April, 92mm (3.62") of precipitation is accumulated. In Koshihara, Japan, during the entire year, the rain falls for 227.4 days and collects up to 1405mm (55.31") of precipitation.Daylight
The average length of the day in April is 12h and 47min.On the first day of the month, sunrise is at 06:19 and sunset at 18:45. On the last day of April, sunrise is at 05:52 and sunset at 19:00 JST.
Sunshine
In April, the average sunshine in Koshihara is 6.8h.UV index
The average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during April leads to these instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Koshihara, Japan
- Average high temperature in April: 22.2°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.9°C).
- Average low temperature in April: 20.4°C
The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).
Average pressure in April
Koshihara, Japan
- Average pressure in April: 1015.1mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in April
Koshihara, Japan
- Average wind speed in April: 23.1km/h
The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).
Average humidity in April
Koshihara, Japan
- Average humidity in April: 77%
The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).
Average rainfall in April
Koshihara, Japan
- Average rainfall in April: 92mm
The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).
Average rainfall days in April
Koshihara, Japan
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).
Average daylight in April /
Average sunshine in April
Koshihara, Japan
- Average daylight in April: 12h and 48min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in April: 6h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Koshihara, Japan
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).
Average UV index in April
Koshihara, Japan
- Average UV index in April: 6
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in April
Koshihara, Japan
- Average cloud cover in April: 51
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in April
Koshihara, Japan
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
