December weather forecastYaka, Japan
December
Weather in December
December, the first month of the winter in Yaka, is still a pleasant month, with an average temperature fluctuating between 20.5°C (68.9°F) and 18.6°C (65.5°F).Temperature
The arrival of December corresponds with a light shift in temperature, down from a warm 23.9°C (75°F) in November to an agreeable 20.5°C (68.9°F). Nights during December maintain a steady temperature, averaging at a comfortable 18.6°C (65.5°F).Humidity
In Yaka, the average relative humidity in December is 73%.Rainfall
In December, the rain falls for 21 days. Throughout December, 82mm (3.23") of precipitation is accumulated. In Yaka, during the entire year, the rain falls for 229 days and collects up to 1437mm (56.57") of precipitation.Daylight
With an average of 10h and 30min of daylight, December has the shortest days of the year in Yaka.On the first day of the month, sunrise is at 06:59 and sunset at 17:35. On the last day of December, sunrise is at 07:16 and sunset at 17:46 JST.
Sunshine
In Yaka, Japan, the average sunshine in December is 4.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in December transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. 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
Yaka, 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).
Average pressure in December
Yaka, 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).
Average wind speed in December
Yaka, 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).
Average humidity in December
Yaka, 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%).
Average rainfall in December
Yaka, 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).
Average rainfall days in December
Yaka, 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).
Average daylight in December /
Average sunshine in December
Yaka, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Yaka, 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).
Average UV index in December
Yaka, 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
Yaka, 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).
Average visibility in December
Yaka, 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).
