December weather forecastMeri, Indonesia
December
Weather in December
The first month of the summer, December, is still a tropical month in Meri, Indonesia, with an average temperature fluctuating between 23.8°C (74.8°F) and 31.4°C (88.5°F).Temperature
The onset of December brings an average high-temperature of a still hot 31.4°C (88.5°F), nearly matching the November temperature. Throughout December, the nighttime temperature averages to a warm 23.8°C (74.8°F).Heat index
The heat index value for December is estimated at a scorching 41°C (105.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In December, the average relative humidity in Meri is 77%.Rainfall
In December, in Meri, the rain falls for 28.4 days. Throughout December, 188mm (7.4") of precipitation is accumulated. Throughout the year, there are 217.3 rainfall days, and 1402mm (55.2") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 12h and 36min of daylight.On the first day of the month, sunrise is at 05:03 and sunset at 17:35. On the last day of December, in Meri, sunrise is at 05:16 and sunset at 17:49 WIB.
Sunshine
The average sunshine in December is 8h.UV index
The months with the highest UV index are February, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Meri, Indonesia
- Average high temperature in December: 31.4°C
The warmest month (with the highest average high temperature) is October (34.5°C).
The month with the lowest average high temperature is February (30.1°C).
- Average low temperature in December: 23.8°C
The month with the highest average low temperature is November (24.5°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).
Average pressure in December
Meri, Indonesia
- Average pressure in December: 1008.8mbar
The month with the highest atmospheric pressure is August (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in December
Meri, Indonesia
- Average wind speed in December: 6.3km/h
The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in December
Meri, Indonesia
- Average humidity in December: 77%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).
Average rainfall in December
Meri, Indonesia
- Average rainfall in December: 188mm
The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in December
Meri, Indonesia
- Average rainfall days in December: 28.4 days
The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).
Average daylight in December /
Average sunshine in December
Meri, Indonesia
- Average daylight in December: 12h and 36min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in December: 8h and 0min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in December
Meri, Indonesia
- Average sunshine days in December: 1.3 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).
Average UV index in December
Meri, Indonesia
- Average UV index in December: 7
The months with the highest UV index are February, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January and March (UV index 6).
Average cloud cover in December
Meri, Indonesia
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in December
Meri, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).





