May weather forecastYoichi, Japan
May
Weather in May
The last month of the spring, May, is a moderate month in Yoichi, Japan, with temperature in the range of an average low of 6.4°C (43.5°F) and an average high of 13.8°C (56.8°F).Temperature
Yoichi in May experiences an increase in the average high-temperature, moving from April's frosty 7°C (44.6°F) to a mild 13.8°C (56.8°F). Yoichi's temperature drops to an average low of 6.4°C (43.5°F) during the nights of May.Humidity
In May, the average relative humidity is 80%.Rainfall
In May, the rain falls for 14.4 days. Throughout May, 54mm (2.13") of precipitation is accumulated. Throughout the year, there are 151.8 rainfall days, and 851mm (33.5") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Yoichi. During 0.3 snowfall days, in May, Yoichi aggregates 1mm (0.04") of snow. Throughout the year, there are 103.4 snowfall days, and 1437mm (56.57") of snow is accumulated.Sea temperature
In Yoichi, Japan, the average seawater temperature in May is 10.4°C (50.7°F).Note: One needs to be cautious in 10.4°C (50.7°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In May, the average length of the day is 14h and 40min.On the first day of May, sunrise is at 04:29 and sunset at 18:38. On the last day of the month, sunrise is at 04:00 and sunset at 19:09 JST.
Sunshine
The months with the most sunshine in Yoichi are May and August, with an average of 8.4h of sunshine.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Yoichi, Japan
- Average high temperature in May: 13.8°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in May: 6.4°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in May
Yoichi, Japan
- Average pressure in May: 1010.2mbar
The month with the highest atmospheric pressure is November (1016.1mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in May
Yoichi, Japan
- Average wind speed in May: 12.8km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in May
Yoichi, Japan
- Average humidity in May: 80%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April and October (79%).
Average rainfall in May
Yoichi, Japan
- Average rainfall in May: 54mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in May
Yoichi, Japan
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in May
Yoichi, Japan
- Average snowfall in May: 1mm
The month with the highest snowfall is January (369mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Yoichi, Japan
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (26 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Yoichi, Japan
- Average sea temperature in May: 10.4°C
The best month for swimming (with the highest average sea temperature) is August (21.8°C).
The coldest month (with the lowest average sea temperature) is March (5.9°C).
Average daylight in May /
Average sunshine in May
Yoichi, Japan
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 24min
The months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 12min).
Average sunshine days in May
Yoichi, Japan
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (3.1 days).
Average UV index in May
Yoichi, Japan
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Yoichi, Japan
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in May
Yoichi, Japan
- Average visibility in May: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (7km).





