Sumoto
Japan
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Sumoto, Japan

The first month of the winter, December, is still a cool month in Sumoto, Japan, with temperature in the range of an average high of 10.7°C (51.3°F) and an average low of 4.6°C (40.3°F).

Temperature

In December, the average high-temperature drops, from a mild 15.8°C (60.4°F) in November, to a cool 10.7°C (51.3°F). The average low-temperature, in Sumoto, is 4.6°C (40.3°F).

Humidity

In Sumoto, the average relative humidity is 67%.

Rainfall

December is the month with the least rainfall, with 41.4mm (1.6") of accumulated precipitation.

Snowfall

April through December are months without snowfall in Sumoto.

Sea temperature

In Sumoto, the average water temperature is 19.3°C (66.7°F).
Note: For most, swimming in 19.3°C (66.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The month with the shortest days is December, with an average of 9.9h of daylight.

Sunshine

The month with the least sunshine in Sumoto is December, with an average of 4.5h of sunshine.

What is the temperature in December in Sumoto?

The average high-temperature, in December, in Sumoto, Japan, is 10.7°C (51.3°F), while the average low-temperature is 4.6°C (40.3°F).

What is the average humidity in December in Sumoto?

The average relative humidity in December in Sumoto is 67%.

How much does it rain in Sumoto in December?

In Sumoto, in December, 41.4mm (1.6") of precipitation is typically accumulated.

What is the driest month in Sumoto?

The month with the least rainfall in Sumoto, Japan, is December when 41.4mm (1.6") of precipitation is typically aggregated.

Does it snow in Sumoto in December?

In Sumoto, in December, it doesn't snow. In January, it regularly snows.

When it does not snow in Sumoto?

In Sumoto snow does not fall in April through December.

How cold is the water in December in Sumoto?

In Sumoto, Japan, in December, the average water temperature is 19.3°C (66.7°F). For most, swimming in 19.3°C (66.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the month with the shortest days in Sumoto?

December has the shortest days of the year in Sumoto, Japan, with an average of 9.9h of daylight.

What is the average length of the day in December in Sumoto?

In Sumoto, Japan, the average length of the day in December is 9.9h.

What is the month with the least sunshine in Sumoto?

With an average of 4.5h of sunshine, December has the least sunshine of the year in Sumoto.

How long on average sun shines in December in Sumoto?

The average sunshine in December in Sumoto, Japan, is 4.5h.
Average temperature in December - Sumoto, Japan
  • Average high temperature in December: 10.7°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8°C).

  • Average low temperature in December: 4.6°C

The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).

Average humidity in December - Sumoto, Japan
  • Average humidity in December: 67%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (66%).

Average rainfall in December - Sumoto, Japan
  • Average rainfall in December: 41.4mm

The wettest month (with the highest rainfall) is September (238.7mm).
The driest month (with the lowest rainfall) is December (41.4mm).

Average snowfall in December - Sumoto, Japan
  • Average snowfall in December: 0mm

The month with the highest snowfall is February (30mm).
Months with the lowest snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average sea temperature in December - Sumoto, Japan
  • Average sea temperature in December: 19.3°C

The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is February (15.7°C).

Average daylight in December / Average sunshine in December - Sumoto, Japan
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 4.5h

The month with most sunshine is August (Average sunshine: 7.1h).
The month with least sunshine is December (Average sunshine: 4.5h).