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
The coldest period tends to be January, when average temperatures fluctuate between a high of 7.6°C (45.7°F) and a low of 2.8°C (37°F).Humidity
In Iwakuni, the average relative humidity in January is 74%.Rainfall
In Iwakuni, Japan, in January, it is raining for 13.1 days, with typically 27mm (1.06") of accumulated precipitation. In Iwakuni, during the entire year, the rain falls for 161.2 days and collects up to 650mm (25.59") of precipitation.Snowfall
Months with snowfall in Iwakuni are January through March and December. The month with the most snowfall in Iwakuni is January, when snow falls for 4.8 days and typically aggregates up to 13mm (0.51") of snow.Daylight
The average length of the day in January in Iwakuni is 10h and 10min.On the first day of the month, sunrise is at 07:16 and sunset at 17:11. On the last day of January, sunrise is at 07:09 and sunset at 17:39 JST.
Sunshine
January has the least sunshine of the year, with an average of 5h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the coldest time of year in Iwakuni?
What is the temperature in January in Iwakuni?
What is the average humidity in January in Iwakuni?
How many days does it rain in January in Iwakuni?
When does it snow the most in Iwakuni?
How many days does it snow in January in Iwakuni?
How many hours of daylight does Iwakuni have in January?
When is the sunrise / sunset in January in Iwakuni?
What is the month with the least sunshine in Iwakuni?
How long on average sun shines in January in Iwakuni?
What are the months with the lowest UV index in Iwakuni?
What is the UV index reading in January in Iwakuni?
Average temperature in January
Iwakuni, Japan
- Average high temperature in January: 7.6°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in January: 2.8°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in January
Iwakuni, Japan
- Average pressure in January: 1021.2mbar
The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in January
Iwakuni, Japan
- Average wind speed in January: 11.8km/h
The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is June (6.7km/h).
Average humidity in January
Iwakuni, Japan
- Average humidity in January: 74%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (73%).
Average rainfall in January
Iwakuni, Japan
- Average rainfall in January: 27mm
The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is November (24mm).
Average rainfall days in January
Iwakuni, Japan
- Average rainfall days in January: 13.1 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is October (9.7 days).
Average snowfall in January
Iwakuni, Japan
- Average snowfall in January: 13mm
The month with the highest snowfall is January (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Iwakuni, Japan
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Iwakuni, Japan
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in January
Iwakuni, Japan
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is May (19 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in January
Iwakuni, 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
Iwakuni, Japan
- Average cloud cover in January: 43
The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August and October (Cloud cover 31).
Average visibility in January
Iwakuni, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, September, October, November and December (10km).
The month with the lowest visibility is July (8km).
Iwakuni, Japan
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