December weather forecast
Kobe, Japan

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Weather in December

December in Kobe signifies the onset of winter, with the city progressively cooling off from the mild November temperatures. Snowflakes begin to fall and accumulate, reaching a total of 10mm (0.39") throughout the month. The dawn of the festive season sees the city illuminated in beautiful holiday lights, creating a magical atmosphere. The city is at its coldest, therefore, it is advisable to keep warm when venturing outdoors. As the month progresses, the city primes itself for a fresh year, carrying over the winter conditions into January.

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's mild 15.9°C (60.6°F) to a cool 10.1°C (50.2°F). Kobe experiences an average nighttime temperature of 5.5°C (41.9°F) in December, reflecting a minor difference from the day's peak.

Humidity

The average relative humidity in December is 73%.

Rainfall

In Kobe, in December, during 15.6 rainfall days, 43mm (1.69") of precipitation is typically accumulated. Throughout the year, there are 176.9 rainfall days, and 791mm (31.14") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 3 snowfall days, it receives 10mm (0.39") of snow. In Kobe, during the entire year, snow falls for 15.6 days and aggregates up to 84mm (3.31") of snow.

Sea temperature

In December, the average sea temperature is 17.7°C (63.9°F).
Note: A surface water temperature of 17.7°C (63.9°F) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 21°C (69.8°F).

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December in Kobe, sunrise is at 06:48 and sunset at 16:48. On the last day of the month, sunrise is at 07:06 and sunset at 16:58 JST.

Sunshine

In Kobe, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What are December temperatures in Kobe?

In December, in Kobe, the average high-temperature is 10.1°C (50.2°F), and the average low-temperature is 5.5°C (41.9°F). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 38°C (100.4°F).

What is the average humidity in December in Kobe?

In December, the average relative humidity in Kobe is 73%.

How many days does it rain in December in Kobe?

In Kobe, Japan, during December, the rain falls for 15.6 days and regularly aggregates up to 43mm (1.69") of precipitation.

When does it start to snow in Kobe?

December is the first month it typically snows. Throughout December, in the average 3 snowfall days, it receives 10mm (0.39") of snow.

How cold is the water in December in Kobe?

In Kobe, the average seawater temperature in December is 17.7°C (63.9°F). Swimming in 17.7°C (63.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Kobe?

December has the shortest days of the year in Kobe, with an average of 9h and 54min of daylight.

How many hours of daylight does Kobe have in December?

In December, the average day length in Kobe is 9h and 53min.

When are sunrise and sunset in December in Kobe?

In December, on the first day of the month, sunrise is at 06:48 and sunset at 16:48. On the last day of the month, in Kobe, sunrise is at 07:06 and sunset at 16:58 JST.

How long on average sun shines in December in Kobe?

The average sunshine duration in December in Kobe, Japan, is 5.2h.

When is the lowest UV index in Kobe?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Kobe?

In December, the average daily maximum UV index in Kobe, Japan, is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Kobe, Japan

Average temperature in December - Kobe, Japan
  • Average high temperature in December: 10.1°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (7.9°C).

  • Average low temperature in December: 5.5°C

The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).

Average pressure in December
Kobe, Japan

Average pressure in December - Kobe, Japan
  • Average pressure in December: 1019.5mbar

The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).

Average wind speed in December
Kobe, Japan

Average wind speed in December - Kobe, Japan
  • Average wind speed in December: 14.6km/h

The windiest month (with the highest average wind speed) is January (15km/h).
The calmest month (with the lowest average wind speed) is June (9.5km/h).

Average humidity in December
Kobe, Japan

Average humidity in December - Kobe, Japan
  • Average humidity in December: 73%

The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are March and April (71%).

Average rainfall in December
Kobe, Japan

Average rainfall in December - Kobe, Japan
  • Average rainfall in December: 43mm

The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is January (31mm).

Average rainfall days in December
Kobe, Japan

Average rainfall days in December - Kobe, Japan
  • Average rainfall days in December: 15.6 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is May (11.7 days).

Average snowfall in December
Kobe, Japan

Average snowfall in December - Kobe, Japan
  • Average snowfall in December: 10mm

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

Average snowfall days in December
Kobe, Japan

Average snowfall days in December - Kobe, Japan
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (5.8 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
Kobe, Japan

Average sea temperature in December - Kobe, Japan
  • Average sea temperature in December: 17.7°C

The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is March (13.9°C).

Average daylight in December /
Average sunshine in December
Kobe, Japan

Average daylight in December / Average sunshine in December - Kobe, Japan
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

Average sunshine days in December
Kobe, Japan

Average sunshine days in December - Kobe, Japan
  • Average sunshine days in December: 8.9 days

The month with the most sunshine days is May (17.1 days).
The month with the least sunshine days is July (8.1 days).

Average UV index in December
Kobe, Japan

Average UV index in December - Kobe, Japan
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Kobe, Japan

Average cloud cover in December - Kobe, Japan
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Kobe, Japan

Average visibility in December - Kobe, 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).

Kobe, Japan

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