December weather forecastTomamae, Japan
December
Weather in December
The first month of the winter, December, is also a wintry month in Tomamae, Japan, with an average temperature fluctuating between -3.3°C (26.1°F) and 0°C (32°F).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cold 5.6°C (42.1°F) in November to a still icy 0°C (32°F). The nights of December are characterized by an average low-temperature of -3.3°C (26.1°F), subtly descending from daytime highs.Humidity
The average relative humidity in December in Tomamae is 80%.Rainfall
In Tomamae, Japan, in December, it is raining for 5.9 days, with typically 86mm (3.39") of accumulated precipitation. In Tomamae, during the entire year, the rain falls for 146.4 days and collects up to 837mm (32.95") of precipitation.Snowfall
Months with snowfall in Tomamae are January through May, October through December. December is the month with the most snowfall. Snow falls for 19.1 days and accumulates 279mm (10.98") of snow.Daylight
December has the shortest days of the year in Tomamae, Japan, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 06:49 and sunset at 15:55. On the last day of the month, sunrise is at 07:08 and sunset at 16:03 JST.
Sunshine
The average sunshine in December in Tomamae is 1.5h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Tomamae. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tomamae, Japan
- Average high temperature in December: 0°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The months with the lowest average high temperature are January and February (-2.5°C).
- Average low temperature in December: -3.3°C
The month with the highest average low temperature is August (17.5°C).
The coldest month (with the lowest average low temperature) is February (-6.6°C).
Average pressure in December
Tomamae, Japan
- Average pressure in December: 1011.7mbar
The months with the highest atmospheric pressure are October and November (1015mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed in December
Tomamae, Japan
- Average wind speed in December: 23.7km/h
The windiest month (with the highest average wind speed) is December (23.7km/h).
The calmest month (with the lowest average wind speed) is July (11.8km/h).
Average humidity in December
Tomamae, Japan
- Average humidity in December: 80%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Tomamae, Japan
- Average rainfall in December: 86mm
The wettest month (with the highest rainfall) is August (125mm).
The driest month (with the least rainfall) is April (42mm).
Average rainfall days in December
Tomamae, Japan
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is October (18.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in December
Tomamae, Japan
- Average snowfall in December: 279mm
The month with the highest snowfall is December (279mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Tomamae, Japan
- Average snowfall days in December: 19.1 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tomamae, Japan
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 1h and 30min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in December
Tomamae, Japan
- Average sunshine days in December: 3.1 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is December (3.1 days).
Average UV index in December
Tomamae, Japan
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Tomamae, Japan
- Average cloud cover in December: 85
The month with the most cloud cover is January (Cloud cover 88).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Tomamae, Japan
- Average visibility in December: 7km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is December (7km).
