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
January
Weather in January
Temperature
The month of January, characterized by an average high of 6.7°C (44.1°F) and a low of 1.3°C (34.3°F), is recognized as the coldest.Humidity
With an average relative humidity of 65%, January is the least humid month.Rainfall
January is the month with the least rainfall. Rain falls for 5.5 days and accumulates 27mm (1.06") of precipitation.Snowfall
January through March and November are months with snowfall. January is the first month it typically snows. Throughout January, in the average 1.1 snowfall days, it receives 10mm (0.39") of snow. Throughout the year, there are 4.4 snowfall days, and 47mm (1.85") of snow is accumulated.Daylight
The average length of the day in January is 9h and 58min.On the first day of January, sunrise is at 06:49 and sunset at 16:29. On the last day of the month, sunrise is at 06:40 and sunset at 16:59 JST.
Sunshine
In January, the average sunshine in Onahama is 6.3h.UV index
January and February, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 2 in January transforms into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
Is it cold during January?
What is the least humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
When does it start snowing?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Onahama have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Onahama, Japan
- Average high temperature in January: 6.7°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in January: 1.3°C
The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in January
Onahama, Japan
- Average pressure in January: 1016.1mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).
Average wind speed in January
Onahama, Japan
- Average wind speed in January: 19.8km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in January
Onahama, Japan
- Average humidity in January: 65%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (65%).
Average rainfall in January
Onahama, Japan
- Average rainfall in January: 27mm
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in January
Onahama, Japan
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in January
Onahama, Japan
- Average snowfall in January: 10mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in January
Onahama, Japan
- Average snowfall days in January: 1.1 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Onahama, Japan
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 6h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in January
Onahama, Japan
- Average sunshine days in January: 24.4 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in January
Onahama, Japan
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in January
Onahama, Japan
- Average cloud cover in January: 32
The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in January
Onahama, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
