December weather forecastSemanan, Indonesia
December
Weather in December
The first month of the summer, December, is also a hot month in Semanan, Indonesia, with an average temperature varying between 30.4°C (86.7°F) and 26.6°C (79.9°F).Temperature
During December, the average high-temperature is a still tropical 30.4°C (86.7°F), maintaining a close resemblance to that of the preceding month. An average nighttime temperature of 26.6°C (79.9°F) marks December.Heat index
In December, the average heat index is evaluated at a torrid 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in December is 72%.Rainfall
In Semanan, in December, it is raining for 21.5 days, with typically 105mm (4.13") of accumulated precipitation. In Semanan, Indonesia, during the entire year, the rain falls for 256 days and collects up to 1133mm (44.61") of precipitation.Daylight
The month with the longest days in Semanan, Indonesia, is December, with an average of 12h and 30min of daylight.On the first day of December, sunrise is at 05:28 and sunset at 17:55. On the last day of the month, sunrise is at 05:41 and sunset at 18:10 WIB.
Sunshine
In Semanan, the average sunshine in December is 9.4h.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 in Semanan. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Semanan, Indonesia
- Average high temperature in December: 30.4°C
The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is February (29.5°C).
- Average low temperature in December: 26.6°C
The month with the highest average low temperature is November (26.9°C).
The coldest month (with the lowest average low temperature) is July (25.4°C).
Average pressure in December
Semanan, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Semanan, Indonesia
- Average wind speed in December: 12.7km/h
The windiest month (with the highest average wind speed) is January (13.6km/h).
The calmest month (with the lowest average wind speed) is November (9.3km/h).
Average humidity in December
Semanan, Indonesia
- Average humidity in December: 72%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Semanan, Indonesia
- Average rainfall in December: 105mm
The wettest month (with the highest rainfall) is February (145mm).
The driest month (with the least rainfall) is August (40mm).
Average rainfall days in December
Semanan, Indonesia
- Average rainfall days in December: 21.5 days
The month with the highest number of rainy days is March (25.5 days).
The month with the least rainy days is August (13.4 days).
Average daylight in December /
Average sunshine in December
Semanan, Indonesia
- Average daylight in December: 12h and 30min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in December: 9h and 24min
The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in December
Semanan, Indonesia
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is April (4 days).
Average UV index in December
Semanan, 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
Semanan, Indonesia
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 21).
Average visibility in December
Semanan, 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).
