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
A subtle decrease in the average high-temperature marks December, falling from November's moderate 14.5°C (58.1°F) to a chilly 8.4°C (47.1°F). In Hatsukaichi, an average nighttime temperature of 2.5°C (36.5°F) is expected during December.Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 14 days. Throughout December, 64mm (2.52") of precipitation is accumulated. Throughout the year, there are 174 rainfall days, and 1174mm (46.22") of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 2.5 snowfall days, it receives 11mm (0.43") of snow. In Hatsukaichi, during the entire year, snow falls for 12.2 days and aggregates up to 68mm (2.68") of snow.Daylight
December has the shortest days of the year in Hatsukaichi, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:58 and sunset at 17:00. On the last day of December, sunrise is at 07:16 and sunset at 17:10 JST.
Sunshine
In December, the average sunshine is 5h.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 health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hatsukaichi in December?
What is the average humidity in December?
How much 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 Hatsukaichi have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hatsukaichi, Japan
- Average high temperature in December: 8.4°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in December
Hatsukaichi, Japan
- Average pressure in December: 1020.7mbar
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 December
Hatsukaichi, Japan
- Average wind speed in December: 8.6km/h
The windiest month (with the highest average wind speed) is January (8.9km/h).
The calmest month (with the lowest average wind speed) is June (5.5km/h).
Average humidity in December
Hatsukaichi, Japan
- Average humidity in December: 81%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Hatsukaichi, Japan
- Average rainfall in December: 64mm
The wettest month (with the highest rainfall) is July (226mm).
The driest month (with the least rainfall) is November (44mm).
Average rainfall days in December
Hatsukaichi, Japan
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in December
Hatsukaichi, Japan
- Average snowfall in December: 11mm
The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hatsukaichi, Japan
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hatsukaichi, Japan
- Average daylight in December: 9h and 5min
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 December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Hatsukaichi, Japan
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is May (17.7 days).
The month with the least sunshine days is July (8 days).
Average UV index in December
Hatsukaichi, 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
Hatsukaichi, Japan
- Average cloud cover in December: 45
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are October and November (Cloud cover 35).
Average visibility in December
Hatsukaichi, Japan
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The month with the lowest visibility is July (7km).
