Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The transition from March to April brings a subtle temperature rise, with average high-temperatures increasing from a cool 11.6°C (52.9°F) to an enjoyable 16.4°C (61.5°F). Koyasan throughout April, records an average low-temperature of 7.4°C (45.3°F).Humidity
In Koyasan, the average relative humidity in April is 75%.Rainfall
In April, in Koyasan, the rain falls for 15.7 days. Throughout April, 103mm (4.06") of precipitation is accumulated. Throughout the year, there are 199.5 rainfall days, and 1277mm (50.28") of precipitation is accumulated.Snowfall
Months with snowfall in Koyasan are January through April and December. April is the last month it regularly snows in Koyasan, Japan. During 0.3 snowfall days, in April, Koyasan aggregates 3mm (0.12") of snow. In Koyasan, during the entire year, snow falls for 25.9 days and aggregates up to 201mm (7.91") of snow.Daylight
In April, the average length of the day in Koyasan 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 Koyasan, sunrise is at 05:08 and sunset at 18:40 JST.
Sunshine
In Koyasan, the average sunshine in April is 8.9h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What is the temperature in April in Koyasan?
What is the average humidity in April in Koyasan?
How much does it rain in Koyasan in April?
What is the last month it snows in Koyasan?
What is the average length of the day in April in Koyasan?
When are sunrise and sunset in April in Koyasan?
How long on average sun shines in April in Koyasan?
What is the UV index reading in April in Koyasan?
Average temperature in April
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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 5min
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
Koyasan, 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
Koyasan, 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
Koyasan, 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
Koyasan, 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).
Koyasan, Japan
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