Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
January's advent denotes a minor fluctuation in the average high-temperature to a moderately hot 29.7°C (85.5°F) from December's 30.4°C (86.7°F). In Sentul, an average low-temperature of 24.3°C (75.7°F) is recorded during January nights.Heat index
January's heat index is estimated at a very hot 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild 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 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Sentul, the average relative humidity in January is 78%.Rainfall
In Sentul, during January, the rain falls for 24.2 days and regularly aggregates up to 131mm (5.16") of precipitation. In Sentul, during the entire year, the rain falls for 221.5 days and collects up to 926mm (36.46") of precipitation.Daylight
In January, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 05:40 and sunset at 18:10. On the last day of January, sunrise is at 05:54 and sunset at 18:17 WIB.
Sunshine
In January, the average sunshine is 9.1h.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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 7 in January translates into these instructions:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Sentul during January?
What is the average humidity in January?
How many days does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Sentul have in January?
What are the months with the highest UV index?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Sentul, Indonesia
- Average high temperature in January: 29.7°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (29.4°C).
- Average low temperature in January: 24.3°C
The month with the highest average low temperature is December (24.8°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).
Average pressure in January
Sentul, Indonesia
- Average pressure in January: 1009.6mbar
The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in January
Sentul, Indonesia
- Average wind speed in January: 9.8km/h
The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is December (6.8km/h).
Average humidity in January
Sentul, Indonesia
- Average humidity in January: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (69%).
Average rainfall in January
Sentul, Indonesia
- Average rainfall in January: 131mm
The wettest months (with the highest rainfall) are February and March (142mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in January
Sentul, Indonesia
- Average rainfall days in January: 24.2 days
The months with the highest number of rainy days are March and December (25 days).
The month with the least rainy days is August (6.5 days).
Average daylight in January /
Average sunshine in January
Sentul, Indonesia
- Average daylight in January: 12h and 3min
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 January: 9h and 1min
The months with the most sunshine are August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 30min).
Average sunshine days in January
Sentul, Indonesia
- Average sunshine days in January: 5.4 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is December (4 days).
Average UV index in January
Sentul, Indonesia
- Average UV index in January: 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 January
Sentul, Indonesia
- Average cloud cover in January: 49
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in January
Sentul, Indonesia
- Average visibility in January: 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).
