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
Iwaki, Japan, notes the coldest temperatures in January, with a high average of 5.1°C (41.2°F) and a low of -1.1°C (30°F).Humidity
The least humid month in Iwaki is January, with an average relative humidity of 70%.Rainfall
The months with the least rainfall are January and February Rain falls for 12.1 days and accumulates 45mm (1.77") of rain.Snowfall
Months with snowfall in Iwaki are January through March, November and December. In Iwaki, Japan, in January, during 6.4 snowfall days, 42mm (1.65") of snow is typically accumulated. Throughout the year, there are 17.8 snowfall days, and 159mm (6.26") of snow is accumulated.Daylight
In January, the average length of the day in Iwaki is 9h and 57min.On the first day of January in Iwaki, 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 is 6.1h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Iwaki?
How cold is January in Iwaki?
What is the least humid month in Iwaki?
What is the average humidity in January in Iwaki?
What is the driest month in Iwaki?
How many days does it rain in January in Iwaki?
How much does it snow in Iwaki in January?
How many hours of daylight does Iwaki have in January?
When is the sunrise / sunset in January in Iwaki?
How many hours of sunshine does Iwaki have in January?
What is the month with the lowest UV index in Iwaki?
What is the UV index reading in January in Iwaki?
Average temperature in January
Iwaki, Japan
- Average high temperature in January: 5.1°C
The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in January: -1.1°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in January
Iwaki, Japan
- Average pressure in January: 1016.2mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).
Average wind speed in January
Iwaki, Japan
- Average wind speed in January: 16.5km/h
The windiest month (with the highest average wind speed) is January (16.5km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity in January
Iwaki, Japan
- Average humidity in January: 70%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (70%).
Average rainfall in January
Iwaki, Japan
- Average rainfall in January: 45mm
The wettest month (with the highest rainfall) is October (152mm).
The driest months (with the least rainfall) are January and February (45mm).
Average rainfall days in January
Iwaki, Japan
- Average rainfall days in January: 12.1 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in January
Iwaki, Japan
- Average snowfall in January: 42mm
The month with the highest snowfall is February (67mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Iwaki, Japan
- Average snowfall days in January: 6.4 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Iwaki, Japan
- Average daylight in January: 9h and 5min
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 1min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in January
Iwaki, Japan
- Average sunshine days in January: 15 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is July (3.8 days).
Average UV index in January
Iwaki, 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, February, March and December (UV index 2).
Average cloud cover in January
Iwaki, Japan
- Average cloud cover in January: 33
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in January
Iwaki, Japan
- Average visibility in January: 9km
The months with the highest visibility are November and December (10km).
The month with the lowest visibility is July (8km).
