December weather forecastIbaruma, Japan
December
Weather in December
The first month of the winter, December, is also an agreeable month in Ibaruma, Japan, with temperature in the range of an average low of 20.1°C (68.2°F) and an average high of 21.9°C (71.4°F).Temperature
With the onset of December, the average high-temperature subtly recedes from November's warm 24.9°C (76.8°F) to a pleasant 21.9°C (71.4°F). During the December nights, Ibaruma's temperature maintains an average close to the daytime highs, settling at 20.1°C (68.2°F).Humidity
The months with the lowest humidity are January and December, with an average relative humidity of 76%.Rainfall
In Ibaruma, in December, during 21.2 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, in Ibaruma, there are 228.7 rainfall days, and 1180mm (46.46") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 42min of daylight.On the first day of December in Ibaruma, sunrise is at 07:10 and sunset at 17:53. On the last day of the month, sunrise is at 07:26 and sunset at 18:05 JST.
Sunshine
With an average of 4.1h of sunshine, December has the least sunshine of the year in Ibaruma.UV index
The months with the lowest UV index in Ibaruma, Japan, are January through March and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a regular UV index of 5 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ibaruma, Japan
- Average high temperature in December: 21.9°C
The warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is January (20.6°C).
- Average low temperature in December: 20.1°C
The month with the highest average low temperature is July (28.4°C).
The coldest month (with the lowest average low temperature) is January (18.7°C).
Average pressure in December
Ibaruma, Japan
- Average pressure in December: 1019.3mbar
The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is August (1005.6mbar).
Average wind speed in December
Ibaruma, Japan
- Average wind speed in December: 32.9km/h
The windiest month (with the highest average wind speed) is December (32.9km/h).
The calmest month (with the lowest average wind speed) is May (20.4km/h).
Average humidity in December
Ibaruma, Japan
- Average humidity in December: 76%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January and December (76%).
Average rainfall in December
Ibaruma, Japan
- Average rainfall in December: 84mm
The wettest month (with the highest rainfall) is August (217mm).
The driest month (with the least rainfall) is March (50mm).
Average rainfall days in December
Ibaruma, Japan
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is April (16.7 days).
Average daylight in December /
Average sunshine in December
Ibaruma, Japan
- Average daylight in December: 10h and 42min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Ibaruma, Japan
- Average sunshine days in December: 6.3 days
The month with the most sunshine days is June (11.8 days).
The month with the least sunshine days is November (6.2 days).
Average UV index in December
Ibaruma, Japan
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 5).
Average cloud cover in December
Ibaruma, Japan
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Ibaruma, Japan
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
