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 snowfall in December
- Average snowfall 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
The onset of December brings a small change in high-temperatures, falling from an enjoyable 16.5°C (61.7°F) in November to a fresh 11.2°C (52.2°F). Tatsumi experiences a mean temperature of 5.9°C (42.6°F) during December nights.Humidity
The average relative humidity in December is 63%.Rainfall
In December, in Tatsumi, Japan, the rain falls for 5.9 days. Throughout December, 12mm (0.47") of precipitation is accumulated. Throughout the year, in Tatsumi, there are 124.5 rainfall days, and 353mm (13.9") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Tatsumi.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Tatsumi.On the first day of December in Tatsumi, Japan, sunrise is at 06:31 and sunset at 16:27. On the last day of the month, sunrise is at 06:50 and sunset at 16:37 JST.
Sunshine
In Tatsumi, the average sunshine in December is 6.2h.UV index
The average daily maximum UV index in December in Tatsumi is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Tatsumi in December?
What is the average humidity in December in Tatsumi?
How many days does it rain in December in Tatsumi?
When it does not snow in Tatsumi?
Does it snow in Tatsumi in December?
What is the month with the shortest days in Tatsumi?
What is the average length of the day in December in Tatsumi?
When is the sunrise / sunset in December in Tatsumi?
How long on average sun shines in December in Tatsumi?
What is the UV index reading in December in Tatsumi?
Average temperature in December
Tatsumi, Japan
- Average high temperature in December: 11.2°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in December: 5.9°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure in December
Tatsumi, Japan
- Average pressure in December: 1016.2mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Tatsumi, Japan
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is April (15.6km/h).
The calmest month (with the lowest average wind speed) is November (12.3km/h).
Average humidity in December
Tatsumi, Japan
- Average humidity in December: 63%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).
Average rainfall in December
Tatsumi, Japan
- Average rainfall in December: 12mm
The wettest months (with the highest rainfall) are September and October (48mm).
The driest month (with the least rainfall) is February (10mm).
Average rainfall days in December
Tatsumi, Japan
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Tatsumi, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Tatsumi, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Tatsumi, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in December
Tatsumi, Japan
- Average sunshine days in December: 24.3 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in December
Tatsumi, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Tatsumi, Japan
- Average cloud cover in December: 30
The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in December
Tatsumi, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
