December weather forecastInsrom, Indonesia
December
Weather in December
December, the first month of the summer in Insrom, is also a moderately hot month, with an average temperature ranging between max 29.7°C (85.5°F) and min 26.2°C (79.2°F).Temperature
The advent of December signifies a minor shift to an average high-temperature of a warm 29.7°C (85.5°F), aligning closely with November. December nights cool to an average low-temperature of 26.2°C (79.2°F), a marginal decrease from its daytime equivalent.Heat index
The heat index value during December is calculated to be a torrid 36°C (96.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In December, the average relative humidity is 78%.Rainfall
In Insrom, in December, during 26.6 rainfall days, 170mm (6.69") of precipitation is typically accumulated. Throughout the year, there are 323.4 rainfall days, and 2132mm (83.94") of precipitation is accumulated.Sea temperature
In December, the average sea temperature is 29.6°C (85.3°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
December has the longest days of the year, with an average of 12h and 12min of daylight.On the first day of the month, sunrise is at 05:39 and sunset at 17:50. On the last day of December, sunrise is at 05:53 and sunset at 18:04 WIT.
Sunshine
In Insrom, the average sunshine in December is 8h.UV index
February and December, with an average maximum UV index of 6, are months with the lowest UV index in Insrom. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during December translates into the following guidance:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Insrom, Indonesia
- Average high temperature in December: 29.7°C
The warmest month (with the highest average high temperature) is November (30°C).
The month with the lowest average high temperature is July (29.1°C).
- Average low temperature in December: 26.2°C
The month with the highest average low temperature is November (26.4°C).
The coldest months (with the lowest average low temperature) are August and September (25.5°C).
Average pressure in December
Insrom, Indonesia
- Average pressure in December: 1007.5mbar
The months with the highest atmospheric pressure are August and September (1009.3mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in December
Insrom, Indonesia
- Average wind speed in December: 8.8km/h
The windiest month (with the highest average wind speed) is March (10km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in December
Insrom, Indonesia
- Average humidity in December: 78%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (77%).
Average rainfall in December
Insrom, Indonesia
- Average rainfall in December: 170mm
The wettest month (with the highest rainfall) is March (243mm).
The driest month (with the least rainfall) is November (125mm).
Average rainfall days in December
Insrom, Indonesia
- Average rainfall days in December: 26.6 days
The month with the highest number of rainy days is January (29 days).
The month with the least rainy days is October (22.8 days).
Average sea temperature in December
Insrom, Indonesia
- Average sea temperature in December: 29.6°C
The best month for swimming (with the highest average sea temperature) is November (30°C).
The coldest months (with the lowest average sea temperature) are February and March (29.3°C).
Average daylight in December /
Average sunshine in December
Insrom, Indonesia
- Average daylight in December: 12h and 12min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The months with the least sunshine are February and June (Average sunshine: 7h and 42min).
Average sunshine days in December
Insrom, Indonesia
- Average sunshine days in December: 3.8 days
The month with the most sunshine days is October (7 days).
The month with the least sunshine days is April (1 days).
Average UV index in December
Insrom, Indonesia
- Average UV index in December: 6
The months with the highest UV index are January, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are February and December (UV index 6).
Average cloud cover in December
Insrom, Indonesia
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 37).
Average visibility in December
Insrom, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are February, June, September, October, November and December (10km).
The months with the lowest visibility are January, March, April, May, July and August (9km).





