April weather forecastKoya, Japan
April
Weather in April
April is an enjoyable spring month in Koya, Japan, with temperature in the range of an average high of 16.4°C (61.5°F) and an average low of 7.4°C (45.3°F).Temperature
Koya's transition into April brings a slight rise in the average high-temperature, moving from a cool 11.6°C (52.9°F) in March to a comfortable 16.4°C (61.5°F). Koya's April nights cool down to an average low-temperature of 7.4°C (45.3°F).Humidity
In Koya, the average relative humidity in April is 75%.Rainfall
In Koya, during April, the rain falls for 15.7 days and regularly aggregates up to 103mm (4.06") of precipitation. Throughout the year, in Koya, there are 199.5 rainfall days, and 1277mm (50.28") of precipitation is accumulated.Snowfall
Months with snowfall are January through April and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Koya aggregates 3mm (0.12") of snow. Throughout the year, in Koya, there are 25.9 snowfall days, and 201mm (7.91") of snow is accumulated.Daylight
In Koya, the average length of the day in April is 13h and 2min.On the first day of the month, sunrise is at 05:44 and sunset at 18:18. On the last day of April, in Koya, sunrise is at 05:08 and sunset at 18:40 JST.
Sunshine
In April, the average sunshine is 8.9h.UV index
The average daily maximum UV index in April in Koya is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Koya, Japan
- Average high temperature in April: 16.4°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in April: 7.4°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (0.1°C).
Average pressure in April
Koya, Japan
- Average pressure in April: 1015mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in April
Koya, Japan
- Average wind speed in April: 8km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest months (with the lowest average wind speed) are June and August (6.2km/h).
Average humidity in April
Koya, Japan
- Average humidity in April: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is May (74%).
Average rainfall in April
Koya, Japan
- Average rainfall in April: 103mm
The wettest month (with the highest rainfall) is July (179mm).
The driest month (with the least rainfall) is January (56mm).
Average rainfall days in April
Koya, Japan
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is February (13.8 days).
Average snowfall in April
Koya, Japan
- Average snowfall in April: 3mm
The month with the highest snowfall is January (90mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Koya, Japan
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Koya, Japan
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in April
Koya, Japan
- Average sunshine days in April: 12 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in April
Koya, Japan
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Koya, Japan
- Average cloud cover in April: 39
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Koya, Japan
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (9km).
The months with the lowest visibility are June and July (8km).
