January weather forecastYoichi, Japan
January weather for Yoichi, Japan: January, the same as December, in Yoichi, Japan, is another subzero cold winter month, with an average temperature ranging between min -7.9°C (17.8°F) and max -3.3°C (26.1°F). The month with the most snowfall in Yoichi is January, when snow falls for 26 days and typically aggregates up to 369mm (14.53") of snow.
January
Weather in January
January, the same as December, in Yoichi, Japan, is another subzero cold winter month, with an average temperature ranging between min -7.9°C (17.8°F) and max -3.3°C (26.1°F).Temperature
January, on average, is the coldest month, registering a high temperature of -3.3°C (26.1°F) and a low of -7.9°C (17.8°F).Humidity
The average relative humidity in January is 87%.Rainfall
In Yoichi, Japan, in January, during 3.4 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In Yoichi, during the entire year, the rain falls for 151.8 days and collects up to 851mm (33.5") of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Yoichi is January, when snow falls for 26 days and typically aggregates up to 369mm (14.53") of snow.Sea temperature
In Yoichi, the average seawater temperature in January is 7.1°C (44.8°F).Note: Swimming in 7.1°C (44.8°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
The average length of the day in January in Yoichi is 9h and 24min.On the first day of January in Yoichi, Japan, sunrise is at 07:08 and sunset at 16:11. On the last day of the month, sunrise is at 06:54 and sunset at 16:46 JST.
Sunshine
With an average of 1.2h of sunshine, January has the least sunshine of the year.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 1 in January suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun is at its strongest around midday, find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Yoichi, Japan
- Average high temperature in January: -3.3°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 January: -7.9°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 January
Yoichi, Japan
- Average pressure in January: 1013.4mbar
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 January
Yoichi, Japan
- Average wind speed in January: 17.8km/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 January
Yoichi, Japan
- Average humidity in January: 87%
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 January
Yoichi, Japan
- Average rainfall in January: 61mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in January
Yoichi, Japan
- Average rainfall days in January: 3.4 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 January
Yoichi, Japan
- Average snowfall in January: 369mm
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 January
Yoichi, Japan
- Average snowfall days in January: 26 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 January
Yoichi, Japan
- Average sea temperature in January: 7.1°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 January /
Average sunshine in January
Yoichi, Japan
- Average daylight in January: 9h and 24min
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 January: 1h and 12min
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 January
Yoichi, Japan
- Average sunshine days in January: 3.1 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 January
Yoichi, Japan
- Average UV index in January: 1
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 January
Yoichi, Japan
- Average cloud cover in January: 89
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 January
Yoichi, Japan
- Average visibility in January: 7km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (7km).





