Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average high temperatures of 9.5°C (49.1°F) and lows of 5°C (41°F), January is the coldest month.Humidity
The least humid month is January, with an average relative humidity of 61%.Rainfall
January is the month with the least rainfall in Sanmu. Rain falls for 8.3 days and accumulates 48mm (1.89") of precipitation.Snowfall
January and February are months with snowfall in Sanmu. January is the first month it typically snows in Sanmu, Japan. Throughout January, in the average 0.6 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, there are 1.9 snowfall days, and 14mm (0.55") of snow is accumulated.Daylight
The average length of the day in January in Sanmu is 10h and 4min.On the first day of January in Sanmu, Japan, sunrise is at 06:47 and sunset at 16:35. On the last day of the month, sunrise is at 06:39 and sunset at 17:03 JST.
Sunshine
The average sunshine in January is 6h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sunburn is recommended. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the coldest time of year in Sanmu?
What is the usual temperature for Sanmu in January?
What is the least humid month in Sanmu?
What is the average humidity in January in Sanmu?
What is the driest month in Sanmu?
How much does it rain in Sanmu in January?
When does it start snowing in Sanmu?
What is the average length of the day in January in Sanmu?
What time are sunrise and sunset in January in Sanmu?
How many hours of sunshine does Sanmu have in January?
What is the month with the lowest UV index in Sanmu?
How high is the UV index in January in Sanmu?
Average temperature in January
Sanmu, Japan
- Average high temperature in January: 9.5°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (9.5°C).
- Average low temperature in January: 5°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (5°C).
Average pressure in January
Sanmu, Japan
- Average pressure in January: 1015.7mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in January
Sanmu, Japan
- Average wind speed in January: 18.1km/h
The windiest month (with the highest average wind speed) is March (19.4km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in January
Sanmu, Japan
- Average humidity in January: 61%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in January
Sanmu, Japan
- Average rainfall in January: 48mm
The wettest month (with the highest rainfall) is October (132mm).
The driest month (with the least rainfall) is January (48mm).
Average rainfall days in January
Sanmu, Japan
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Sanmu, Japan
- Average snowfall in January: 2mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in January
Sanmu, Japan
- Average snowfall days in January: 0.6 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Sanmu, Japan
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in January
Sanmu, Japan
- Average sunshine days in January: 21.3 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Sanmu, Japan
- Average UV index in January: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 3).
Average cloud cover in January
Sanmu, Japan
- Average cloud cover in January: 33
The months with the most cloud cover are March, June and October (Cloud cover 47).
The months with the least cloud cover are January and August (Cloud cover 33).
Average visibility in January
Sanmu, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Sanmu, Japan
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