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 sea temperature 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
January is the month when Kumamoto experiences its coldest temperatures, averaging a high of 8.3°C (46.9°F) and a low of 1.7°C (35.1°F).Humidity
In Kumamoto, the average relative humidity in January is 74%.Rainfall
January is the month with the least rainfall. Rain falls for 10.5 days and accumulates 36mm (1.42") of precipitation.Snowfall
Months with snowfall are January through March and December. January is the month with the most snowfall in Kumamoto. Snow falls for 3.3 days and accumulates 16mm (0.63") of snow.Sea temperature
In January, the average sea temperature is 19°C (66.2°F).Note: Most people find swimming in 19°C (66.2°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
In Kumamoto, the average length of the day in January is 10h and 16min.On the first day of January in Kumamoto, Japan, sunrise is at 07:19 and sunset at 17:21. On the last day of the month, sunrise is at 07:13 and sunset at 17:47 JST.
Sunshine
January has the least sunshine of the year, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Kumamoto?
What are January temperatures in Kumamoto?
What is the average humidity in January in Kumamoto?
What is the driest month in Kumamoto?
How much does it rain in Kumamoto in January?
When does it snow the most in Kumamoto?
How many days does it snow in January in Kumamoto?
What is the sea temperature in January in Kumamoto?
How many hours of daylight does Kumamoto have in January?
What time are sunrise and sunset in January in Kumamoto?
What is the month with the least sunshine in Kumamoto?
How many hours of sunshine does Kumamoto have in January?
When is the lowest UV index in Kumamoto?
What is the UV index intensity in January in Kumamoto?
Average temperature in January
Kumamoto, Japan
- Average high temperature in January: 8.3°C
The warmest month (with the highest average high temperature) is August (30.4°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in January: 1.7°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in January
Kumamoto, Japan
- Average pressure in January: 1021.8mbar
The month with the highest atmospheric pressure is January (1021.8mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in January
Kumamoto, Japan
- Average wind speed in January: 7.9km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is June (7km/h).
Average humidity in January
Kumamoto, Japan
- Average humidity in January: 74%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are March and April (72%).
Average rainfall in January
Kumamoto, Japan
- Average rainfall in January: 36mm
The wettest month (with the highest rainfall) is June (216mm).
The driest month (with the least rainfall) is January (36mm).
Average rainfall days in January
Kumamoto, Japan
- Average rainfall days in January: 10.5 days
The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is January (10.5 days).
Average snowfall in January
Kumamoto, Japan
- Average snowfall in January: 16mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Kumamoto, Japan
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Kumamoto, Japan
- Average sea temperature in January: 19°C
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest months (with the lowest average sea temperature) are February and March (18°C).
Average daylight in January /
Average sunshine in January
Kumamoto, Japan
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in January
Kumamoto, Japan
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is July (4.9 days).
Average UV index in January
Kumamoto, 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
Kumamoto, Japan
- Average cloud cover in January: 43
The month with the most cloud cover is June (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in January
Kumamoto, Japan
- Average visibility in January: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are June and July (8km).
Kumamoto, Japan
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