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 coldest period is January, when temperatures fluctuate between an average high of 7°C (44.6°F) and a low of 1.8°C (35.2°F).Humidity
The average relative humidity in January is 76%.Rainfall
The month with the least rainfall in Isoshi is January, when the rain falls for 17 days and typically collects 49mm (1.93") of precipitation.Snowfall
January through March and December are months with snowfall. The month with the most snowfall is January, when snow falls for 10.6 days and typically aggregates up to 96mm (3.78") of snow.Daylight
In Isoshi, the average length of the day in January is 10h and 7min.On the first day of the month, sunrise is at 07:05 and sunset at 16:57. On the last day of January, sunrise is at 06:58 and sunset at 17:25 JST.
Sunshine
The average sunshine in January is 4.9h.UV index
The months with the lowest UV index in Isoshi are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Isoshi?
How cold does it get in Isoshi in January?
What is the average humidity in January in Isoshi?
What is the driest month in Isoshi?
How much does it rain in Isoshi in January?
What is the snowiest month in Isoshi?
How many days does it snow in January in Isoshi?
How many hours of daylight does Isoshi have in January?
When are sunrise and sunset in January in Isoshi?
How many hours of sunshine does Isoshi have in January?
What is the month with the lowest UV index in Isoshi?
What is the UV index reading in January in Isoshi?
Average temperature in January
Isoshi, Japan
- Average high temperature in January: 7°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in January: 1.8°C
The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in January
Isoshi, Japan
- Average pressure in January: 1019.7mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in January
Isoshi, Japan
- Average wind speed in January: 11.5km/h
The windiest month (with the highest average wind speed) is January (11.5km/h).
The calmest month (with the lowest average wind speed) is June (8.3km/h).
Average humidity in January
Isoshi, Japan
- Average humidity in January: 76%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in January
Isoshi, Japan
- Average rainfall in January: 49mm
The wettest month (with the highest rainfall) is July (196mm).
The driest month (with the least rainfall) is January (49mm).
Average rainfall days in January
Isoshi, Japan
- Average rainfall days in January: 17 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (14.1 days).
Average snowfall in January
Isoshi, Japan
- Average snowfall in January: 96mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Isoshi, Japan
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Isoshi, 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 54min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Isoshi, Japan
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is July (5.6 days).
Average UV index in January
Isoshi, Japan
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Isoshi, Japan
- Average cloud cover in January: 46
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Isoshi, Japan
- Average visibility in January: 9km
The months with the highest visibility are November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and October (9km).
