Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The transition into December indicates a reduction in the average high-temperature, down to a frosty 9.9°C (49.8°F) from November's moderate 15.5°C (59.9°F). Throughout December, a modest shift from daytime highs is anticipated, with an average low-temperature of 5.5°C (41.9°F).Humidity
The average relative humidity in December in Ihozaki is 74%.Rainfall
In Ihozaki, Japan, in December, it is raining for 14 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, there are 166.4 rainfall days, and 586mm (23.07") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 1.8 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, there are 12.4 snowfall days, and 57mm (2.24") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:49 and sunset at 16:49. On the last day of December, sunrise is at 07:07 and sunset at 16:59 JST.
Sunshine
The average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Ihozaki are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Ihozaki have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Ihozaki have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Ihozaki, Japan
- Average high temperature in December: 9.9°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in December: 5.5°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in December
Ihozaki, Japan
- Average pressure in December: 1019.6mbar
The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in December
Ihozaki, Japan
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).
Average humidity in December
Ihozaki, Japan
- Average humidity in December: 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 December
Ihozaki, Japan
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is July (106mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in December
Ihozaki, Japan
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is May (10.3 days).
Average snowfall in December
Ihozaki, Japan
- Average snowfall in December: 6mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Ihozaki, Japan
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ihozaki, Japan
- Average daylight in December: 9h and 5min
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 December: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in December
Ihozaki, Japan
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is May (18.5 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in December
Ihozaki, Japan
- Average UV index in December: 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 December
Ihozaki, Japan
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Ihozaki, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (10km).
The months with the lowest visibility are June and July (9km).
