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 month is January, with an average high-temperature of 8.9°C (48°F) and an average low-temperature of 3.4°C (38.1°F).Humidity
January is the least humid month in Katsushima, with an average relative humidity of 61%.Rainfall
In Katsushima, during January, the rain falls for 7.5 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 154.1 rainfall days, and 754mm (29.69") of precipitation is accumulated.Snowfall
January through March are months with snowfall. January is the first month it typically snows in Katsushima. Throughout January, in the average 1.1 snowfall days, it receives 3mm (0.12") of snow. In Katsushima, during the entire year, snow falls for 3.5 days and aggregates up to 41mm (1.61") of snow.Daylight
In Katsushima, the average length of the day in January is 10h and 4min.On the first day of the month, sunrise is at 06:50 and sunset at 16:38. On the last day of January, in Katsushima, sunrise is at 06:42 and sunset at 17:06 JST.
Sunshine
The average sunshine in January in Katsushima is 6.2h.UV index
The months with the lowest UV index in Katsushima are January through March, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 3 transforms into these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Katsushima?
What are the temperatures in Katsushima in January?
What is the least humid month in Katsushima?
What is the average humidity in January in Katsushima?
How many days does it rain in January in Katsushima?
When does it start to snow in Katsushima?
How many hours of daylight does Katsushima have in January?
When are sunrise and sunset in January in Katsushima?
How many hours of sunshine does Katsushima have in January?
What are the months with the lowest UV index in Katsushima?
What is the UV index reading in January in Katsushima?
Average temperature in January
Katsushima, Japan
- Average high temperature in January: 8.9°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in January: 3.4°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3.4°C).
Average pressure in January
Katsushima, Japan
- Average pressure in January: 1016.1mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in January
Katsushima, Japan
- Average wind speed in January: 15.8km/h
The windiest month (with the highest average wind speed) is April (17.3km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity in January
Katsushima, Japan
- Average humidity in January: 61%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall in January
Katsushima, Japan
- Average rainfall in January: 38mm
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days in January
Katsushima, Japan
- Average rainfall days in January: 7.5 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in January
Katsushima, Japan
- Average snowfall in January: 3mm
The month with the highest snowfall is February (37mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in January
Katsushima, Japan
- Average snowfall days in January: 1.1 days
The month with the highest number of snowfall days is February (2 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
Katsushima, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in January
Katsushima, Japan
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in January
Katsushima, 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, March, November and December (UV index 3).
Average cloud cover in January
Katsushima, Japan
- Average cloud cover in January: 31
The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in January
Katsushima, 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).
Katsushima, Japan
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