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
The warmest months are November and December, with an average high-temperature of 30.5°C (86.9°F).Heat index
The average heat index in December is calculated to be a very hot 38°C (100.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In December, the average relative humidity is 75%.Rainfall
In Umari, in December, it is raining for 22.5 days, with typically 113mm (4.45") of accumulated precipitation. In Umari, during the entire year, the rain falls for 275.4 days and collects up to 1289mm (50.75") of precipitation.Daylight
December has the longest days of the year in Umari, with an average of 12h and 24min of daylight.On the first day of the month, sunrise is at 05:36 and sunset at 17:58. On the last day of December, sunrise is at 05:50 and sunset at 18:12 WIT.
Sunshine
The month with the most sunshine is December, with an average of 10.1h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 7 during December leads to these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
How hot is December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What month has the most sunshine?
How many hours of sunshine does Umari have in December?
What are the months with the highest UV index?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Umari, Indonesia
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are November and December (30.5°C).
The month with the lowest average high temperature is July (29°C).
- Average low temperature in December: 24.5°C
The month with the highest average low temperature is December (24.5°C).
The coldest months (with the lowest average low temperature) are July and September (23.2°C).
Average pressure in December
Umari, Indonesia
- Average pressure in December: 1008.7mbar
The months with the highest atmospheric pressure are August and September (1010.9mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in December
Umari, Indonesia
- Average wind speed in December: 6.1km/h
The windiest month (with the highest average wind speed) is August (6.4km/h).
The calmest month (with the lowest average wind speed) is May (5.4km/h).
Average humidity in December
Umari, Indonesia
- Average humidity in December: 75%
The months with the highest relative humidity are June and July (80%).
The month with the lowest relative humidity is January (74%).
Average rainfall in December
Umari, Indonesia
- Average rainfall in December: 113mm
The wettest month (with the highest rainfall) is March (142mm).
The driest month (with the least rainfall) is August (82mm).
Average rainfall days in December
Umari, Indonesia
- Average rainfall days in December: 22.5 days
The months with the highest number of rainy days are April and May (24.8 days).
The month with the least rainy days is January (21.3 days).
Average daylight in December /
Average sunshine in December
Umari, Indonesia
- Average daylight in December: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 10h and 1min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is June (Average sunshine: 7h and 36min).
Average sunshine days in December
Umari, Indonesia
- Average sunshine days in December: 7.3 days
The month with the most sunshine days is January (8.4 days).
The month with the least sunshine days is April (4.2 days).
Average UV index in December
Umari, Indonesia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Umari, Indonesia
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 34).
Average visibility in December
Umari, Indonesia
- 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).
