Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 24.9°C (76.8°F) in November to an agreeable 21.9°C (71.4°F). Shiraho's nocturnal December readings average at a still pleasant 20.1°C (68.2°F), showing little variation from the daytime temperatures.Humidity
January and December, with an average relative humidity of 76%, are the least humid months in Shiraho.Rainfall
In Shiraho, in December, during 21.2 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, in Shiraho, there are 228 rainfall days, and 1184mm (46.61") of precipitation is accumulated.Daylight
With an average of 10h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:09 and sunset at 17:54. On the last day of December, in Shiraho, sunrise is at 07:26 and sunset at 18:05 JST.
Sunshine
December has the least sunshine of the year, with an average of 4.1h of sunshine.UV index
January through March and December, with an average maximum UV index of 5, are months with the lowest UV index in Shiraho. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in December transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Shiraho?
What are the least humid months in Shiraho?
What is the average humidity in December in Shiraho?
How many days does it rain in December in Shiraho?
What is the month with the shortest days in Shiraho?
What is the average length of the day in December in Shiraho?
What time are sunrise and sunset in December in Shiraho?
What is the month with the least sunshine in Shiraho?
How long on average sun shines in December in Shiraho?
When is the lowest UV index in Shiraho?
What is the UV index intensity in December in Shiraho?
Average temperature in December
Shiraho, 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
Shiraho, 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
Shiraho, 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
Shiraho, 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
Shiraho, 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
Shiraho, 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
Shiraho, Japan
- Average daylight in December: 10h and 4min
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 1min
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
Shiraho, 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
Shiraho, 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
Shiraho, 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
Shiraho, 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).
