December weather forecast
Sugasawa, Japan

December

Weather in December

December, the first month of the winter in Sugasawa, is still a cool month, with an average temperature ranging between min 5.1°C (41.2°F) and max 10.9°C (51.6°F).

Temperature

December's onset brings a reduction in the average high-temperature, from a comfortable 16.2°C (61.2°F) in November to a fresh 10.9°C (51.6°F). In Sugasawa, the average temperature during the nights of December drops to an icy 5.1°C (41.2°F).

Humidity

The average relative humidity in December is 61%.

Rainfall

The months with the least rainfall in Sugasawa, Japan, are February and December Rain falls for 8.3 days and accumulates 34mm (1.34") of rain.

Snowfall

In Sugasawa, snow does not fall in April through October and December.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:33 and sunset at 16:28. On the last day of December, in Sugasawa, sunrise is at 06:51 and sunset at 16:38 JST.

Sunshine

In December, the average sunshine in Sugasawa is 6.4h.

UV index

In Sugasawa, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Frequently asked questions

What is the average December temperature in Sugasawa?
December temperatures vary between a high-temperature of 10.9°C (51.6°F) and a low-temperature of 5.1°C (41.2°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 30°C (86°F).
What is the average humidity in December in Sugasawa?
In Sugasawa, Japan, the average relative humidity in December is 61%.
What is the driest month in Sugasawa?
The months with the least rainfall in Sugasawa are February and December Rain falls for 8.3 days and accumulates 34mm (1.34") of rain.
How many days does it rain in December in Sugasawa?
In Sugasawa, in December, during 8.3 rainfall days, 34mm (1.34") of precipitation is typically accumulated.
When it does not snow in Sugasawa?
April through October and December are months without snowfall in Sugasawa.
Does it snow in Sugasawa in December?
In December, in Sugasawa, it doesn't snow. November is the latest month when it typically snows.
What is the month with the shortest days in Sugasawa?
With an average of 9h and 48min of daylight, December has the shortest days of the year.
How many hours of daylight does Sugasawa have in December?
In December, the average day length in Sugasawa, Japan, is 9h and 47min.
When are sunrise and sunset in December in Sugasawa?
On the first day of December in Sugasawa, sunrise is at 06:33 and sunset at 16:28. On the last day of the month, sunrise is at 06:51 and sunset at 16:38 JST.
How long on average sun shines in December in Sugasawa?
The average sunshine duration in December is 6.4h.
What is the UV index reading in December in Sugasawa?
The average daily maximum UV index in December in Sugasawa is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Sugasawa, Japan
  • Average high temperature in December: 10.9°C

The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.5°C).

  • Average low temperature in December: 5.1°C

The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average pressure in December
Sugasawa, Japan
  • Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Sugasawa, Japan
  • Average wind speed in December: 11.1km/h

The windiest month (with the highest average wind speed) is April (12.9km/h).
The calmest month (with the lowest average wind speed) is November (10.1km/h).

Average humidity in December
Sugasawa, Japan
  • Average humidity in December: 61%

The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).

Average rainfall in December
Sugasawa, Japan
  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is October (121mm).
The driest months (with the least rainfall) are February and December (34mm).

Average rainfall days in December
Sugasawa, Japan
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in December
Sugasawa, Japan
  • Average snowfall in December: 0mm

The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

Average snowfall days in December
Sugasawa, Japan
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

Average daylight in December /
Average sunshine in December
Sugasawa, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

Average sunshine days in December
Sugasawa, Japan
  • Average sunshine days in December: 20.8 days

The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in December
Sugasawa, 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 and February (UV index 2).

Average cloud cover in December
Sugasawa, Japan
  • Average cloud cover in December: 28

The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 26).

Average visibility in December
Sugasawa, Japan
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, May, August, October, November and December (10km).
The months with the lowest visibility are April, June, July and September (9km).

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