December weather forecastIchihara, Japan
December
Weather in December
December, the first month of the winter in Ichihara, is also a fresh month, with an average temperature varying between 11.7°C (53.1°F) and 6.6°C (43.9°F).Temperature
As November transitions into December, Ichihara sees a drop in the average high-temperature, transitioning from a refreshing 16.7°C (62.1°F) to a fresh 11.7°C (53.1°F). During December, Ichihara records an average temperature of 6.6°C (43.9°F) at night.Humidity
In December, the average relative humidity in Ichihara, Japan, is 65%.Rainfall
In Ichihara, Japan, in December, it is raining for 9.4 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, there are 162.9 rainfall days, and 921mm (36.26") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Ichihara, Japan.Sea temperature
In December, the average sea temperature is 17.4°C (63.3°F).Note: In water of 17.4°C (63.3°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Ichihara, Japan, sunrise is at 06:30 and sunset at 16:26. On the last day of the month, sunrise is at 06:48 and sunset at 16:36 JST.
Sunshine
In Ichihara, the average sunshine in December is 5.9h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Undertake precautions - Guarding against sun damage is counselled. When the Sun is at its strongest around midday, find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ichihara, Japan
- Average high temperature in December: 11.7°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 (9.3°C).
- Average low temperature in December: 6.6°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in December
Ichihara, Japan
- Average pressure in December: 1016mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Ichihara, Japan
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is March (17.4km/h).
The calmest month (with the lowest average wind speed) is June (13.4km/h).
Average humidity in December
Ichihara, Japan
- Average humidity in December: 65%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (62%).
Average rainfall in December
Ichihara, Japan
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is October (124mm).
The driest month (with the least rainfall) is January (41mm).
Average rainfall days in December
Ichihara, Japan
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Ichihara, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Ichihara, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Ichihara, Japan
- Average sea temperature in December: 17.4°C
The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (14.4°C).
Average daylight in December /
Average sunshine in December
Ichihara, Japan
- Average daylight in December: 9h and 48min
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 December: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Ichihara, Japan
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Ichihara, Japan
- Average UV index in December: 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 December
Ichihara, Japan
- Average cloud cover in December: 34
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in December
Ichihara, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
