December weather forecastZamami, Japan

December

Weather in December

The first month of the winter, December, is also an agreeable month in Zamami, Japan, with an average temperature fluctuating between 20.6°C (69.1°F) and 18.8°C (65.8°F).

Temperature

With the onset of December, Zamami experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 23.9°C (75°F) in November to a pleasant 20.6°C (69.1°F). Zamami's nighttime average temperature in December drops marginally from the daytime highs, settling at a comfortable 18.8°C (65.8°F).

Humidity

The average relative humidity in December in Zamami is 73%.

Rainfall

In December, in Zamami, the rain falls for 21.2 days. Throughout December, 81mm (3.19") of precipitation is accumulated. Throughout the year, there are 227.4 rainfall days, and 1405mm (55.31") of precipitation is accumulated.

Daylight

The month with the shortest days in Zamami is December, with an average of 10h and 30min of daylight.
On the first day of December, sunrise is at 07:01 and sunset at 17:38. On the last day of the month, sunrise is at 07:18 and sunset at 17:49 JST.

Sunshine

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

UV index

With an average maximum UV index of 4, December is the month with the lowest UV index in Zamami. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 4 in December transforms into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

The high-temperature, in December, in Zamami, records 20.6°C (69.1°F), while the low-temperature is 18.8°C (65.8°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 33°C (91.4°F).

In December, the average relative humidity is 73%.

In Zamami, Japan, in December, during 21.2 rainfall days, 81mm (3.19") of precipitation is typically accumulated.

With an average of 10h and 30min of daylight, December has the shortest days of the year in Zamami, Japan.

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

On the first day of December in Zamami, sunrise is at 07:01 and sunset at 17:38. On the last day of the month, sunrise is at 07:18 and sunset at 17:49 JST.

In Zamami, Japan, the average sunshine duration in December is 4.4h.

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

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Zamami, Japan

  • Average high temperature in December: 20.6°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.9°C).

  • Average low temperature in December: 18.8°C

The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

Average pressure in December
Zamami, Japan

  • Average pressure in December: 1019.8mbar

The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

Average wind speed in December
Zamami, Japan

  • Average wind speed in December: 28.4km/h

The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).

Average humidity in December
Zamami, Japan

  • Average humidity in December: 73%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).

Average rainfall in December
Zamami, Japan

  • Average rainfall in December: 81mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).

Average rainfall days in December
Zamami, Japan

  • Average rainfall days in December: 21.2 days

The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).

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

  • Average daylight in December: 10h and 30min

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 24min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Zamami, Japan

  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).

Average UV index in December
Zamami, 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).

Average cloud cover in December
Zamami, Japan

  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Zamami, 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).