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 sea temperature 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
Weather in December
Temperature
The average high-temperature drops in December, from November's enjoyable 16.7°C (62.1°F) to a fresh 11.7°C (53.1°F). The nights of December cool down to an average low of 6.9°C (44.4°F), subtly lower than daytime highs.Humidity
The average relative humidity in December in Yokohama is 63%.Rainfall
December is the month with the least rainfall in Yokohama. Rain falls for 9 days and accumulates 40mm (1.57") of precipitation.Snowfall
April through December are months without snowfall in Yokohama.Sea temperature
In December, the average sea temperature is 18.9°C (66°F).Note: Swimming in 18.9°C (66°F) is not an enjoyable experience for most. Breathing becomes progressively more challenging as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days in Yokohama is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 06:32 and sunset at 16:28. On the last day of December, in Yokohama, Japan, sunrise is at 06:50 and sunset at 16:38 JST.
Sunshine
In Yokohama, the average sunshine in December is 6.2h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 3 transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the average December temperature in Yokohama?
What is the average humidity in December in Yokohama?
What is the driest month in Yokohama?
How much does it rain in Yokohama in December?
When it does not snow in Yokohama?
Does it snow in Yokohama in December?
What is the sea temperature in December in Yokohama?
What is the month with the shortest days in Yokohama?
What is the average length of the day in December in Yokohama?
When is the sunrise / sunset in December in Yokohama?
How many hours of sunshine does Yokohama have in December?
When is the lowest UV index in Yokohama?
What is the UV index reading in December in Yokohama?
Average temperature in December
Yokohama, 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: 6.9°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in December
Yokohama, Japan
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Yokohama, Japan
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is June (14.2km/h).
Average humidity in December
Yokohama, Japan
- Average humidity in December: 63%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (60%).
Average rainfall in December
Yokohama, Japan
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is October (126mm).
The driest month (with the least rainfall) is December (40mm).
Average rainfall days in December
Yokohama, Japan
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Yokohama, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Yokohama, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Yokohama, Japan
- Average sea temperature in December: 18.9°C
The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).
Average daylight in December /
Average sunshine in December
Yokohama, 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 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Yokohama, Japan
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is October (11.7 days).
Average UV index in December
Yokohama, 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 and December (UV index 3).
Average cloud cover in December
Yokohama, Japan
- Average cloud cover in December: 31
The month with the most cloud cover is October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in December
Yokohama, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Yokohama, Japan
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