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 sea temperature 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
January, on average, is the coldest month, registering a high temperature of 9.8°C (49.6°F) and a low of 5.3°C (41.5°F).Humidity
January is the least humid month, with an average relative humidity of 61%.Rainfall
In January, the rain falls for 6.5 days. Throughout January, 43mm (1.69") of precipitation is accumulated. In Hayama, during the entire year, the rain falls for 150.9 days and collects up to 867mm (34.13") of precipitation.Snowfall
Months with snowfall in Hayama are January through March. January is the first month it typically snows in Hayama. Throughout January, in the average 0.1 snowfall days, it receives 6mm (0.24") of snow. In Hayama, during the entire year, snow falls for 0.7 days and aggregates up to 17mm (0.67") of snow.Sea temperature
In Hayama, the average seawater temperature in January is 16.9°C (62.4°F).Note: When the surface water temperature is 16.9°C (62.4°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
In Hayama, Japan, the average length of the day in January is 10h and 5min.On the first day of January, sunrise is at 06:50 and sunset at 16:39. On the last day of the month, sunrise is at 06:42 and sunset at 17:07 JST.
Sunshine
In January, the average sunshine is 6.4h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, the average maximum UV index of 3 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the coldest time of year in Hayama?
What is the usual temperature for Hayama in January?
What is the least humid month in Hayama?
What is the average humidity in January in Hayama?
How much does it rain in Hayama in January?
When does it start to snow in Hayama?
What is the sea temperature in January in Hayama?
How many hours of daylight does Hayama have in January?
When are sunrise and sunset in January in Hayama?
How long on average sun shines in January in Hayama?
When is the lowest UV index in Hayama?
What is the UV index intensity in January in Hayama?
Average temperature in January
Hayama, Japan
- Average high temperature in January: 9.8°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in January: 5.3°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in January
Hayama, Japan
- Average pressure in January: 1016.1mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in January
Hayama, Japan
- Average wind speed in January: 19km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in January
Hayama, 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
Hayama, Japan
- Average rainfall in January: 43mm
The wettest month (with the highest rainfall) is October (119mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in January
Hayama, Japan
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in January
Hayama, Japan
- Average snowfall in January: 6mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in January
Hayama, Japan
- Average snowfall days in January: 0.1 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in January
Hayama, Japan
- Average sea temperature in January: 16.9°C
The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).
Average daylight in January /
Average sunshine in January
Hayama, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in January
Hayama, Japan
- Average sunshine days in January: 23.2 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in January
Hayama, 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 and December (UV index 3).
Average cloud cover in January
Hayama, Japan
- Average cloud cover in January: 30
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Hayama, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Hayama, Japan
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