December weather forecast
Haebaru, Japan

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Weather in December

December, the first month of the winter in Haebaru, is still a pleasant month, with an average temperature varying between 20.5°C (68.9°F) and 18.6°C (65.5°F).

Temperature

December's onset brings a negligible change in high-temperatures, falling from a moderately hot 23.9°C (75°F) in November to an agreeable 20.5°C (68.9°F). December sees a slight dip to an average low temperature of 18.6°C (65.5°F) from the daytime highs.

Humidity

The average relative humidity in December in Haebaru, Japan, is 73%.

Rainfall

In Haebaru, in December, it is raining for 21 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, there are 229 rainfall days, and 1437mm (56.57") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 23.7°C (74.7°F).
Note: Think about diving into 23.7°C (74.7°F) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

December has the shortest days of the year in Haebaru, Japan, with an average of 10h and 30min of daylight.
On the first day of December in Haebaru, Japan, sunrise is at 06:59 and sunset at 17:36. On the last day of the month, sunrise is at 07:16 and sunset at 17:48 JST.

Sunshine

In Haebaru, the average sunshine in December is 4.4h.

UV index

December is the month with the lowest UV index in Haebaru, Japan, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 4 during December translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Attention! The reflection of both water and sand can increase the intensity of UV rays.
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Frequently asked questions

What is the average December temperature in Haebaru?

In December, in Haebaru, the average high-temperature is 20.5°C (68.9°F), and the average low-temperature is 18.6°C (65.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 34°C (93.2°F).

What is the average humidity in December in Haebaru?

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

How much does it rain in Haebaru in December?

In Haebaru, Japan, in December, during 21 rainfall days, 82mm (3.23") of precipitation is typically accumulated.

What is the water temperature in December in Haebaru?

In December, the average sea temperature is 23.7°C (74.7°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.7°C (74.7°F) water may be enjoyable.

What is the month with the shortest days in Haebaru?

The month with the shortest days in Haebaru, Japan, is December, with an average of 10h and 30min of daylight.

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

In Haebaru, Japan, the average day length in December is 10h and 32min.

When are sunrise and sunset in December in Haebaru?

On the first day of December, sunrise is at 06:59 and sunset at 17:36. On the last day of the month, sunrise is at 07:16 and sunset at 17:48 JST.

How many hours of sunshine does Haebaru have in December?

In December, the average sunshine duration is 4.4h.

What is the month with the lowest UV index in Haebaru?

The month with the lowest UV index in Haebaru is December, with an average maximum UV index of 4.

How high is the UV index in December in Haebaru?

The average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in December
Haebaru, Japan

Average temperature in December - Haebaru, Japan
  • Average high temperature in December: 20.5°C

The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (18.8°C).

  • Average low temperature in December: 18.6°C

The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).

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Average pressure in December
Haebaru, Japan

Average pressure in December - Haebaru, Japan
  • Average pressure in December: 1019.9mbar

The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

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Average wind speed in December
Haebaru, Japan

Average wind speed in December - Haebaru, Japan
  • Average wind speed in December: 27km/h

The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).

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Average humidity in December
Haebaru, Japan

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

The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).

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Average rainfall in December
Haebaru, Japan

Average rainfall in December - Haebaru, Japan
  • Average rainfall in December: 82mm

The wettest month (with the highest rainfall) is June (205mm).
The driest month (with the least rainfall) is February (61mm).

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Average rainfall days in December
Haebaru, Japan

Average rainfall days in December - Haebaru, Japan
  • Average rainfall days in December: 21 days

The month with the highest number of rainy days is January (22.6 days).
The months with the least rainy days are March and November (16.5 days).

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Average sea temperature in December
Haebaru, Japan

Average sea temperature in December - Haebaru, Japan
  • Average sea temperature in December: 23.7°C

The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (20.9°C).

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

Average daylight in December / Average sunshine in December - Haebaru, Japan
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in December
Haebaru, Japan

Average sunshine days in December - Haebaru, Japan
  • Average sunshine days in December: 5.8 days

The month with the most sunshine days is April (11 days).
The month with the least sunshine days is January (5.4 days).

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Average UV index in December
Haebaru, Japan

Average UV index in December - Haebaru, Japan
  • Average UV index in December: 4

The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in December
Haebaru, Japan

Average cloud cover in December - Haebaru, Japan
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 35).

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Average visibility in December
Haebaru, Japan

Average visibility in December - Haebaru, Japan
  • Average visibility in December: 10km

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

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Haebaru, Japan

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