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
Ratujaya witnesses the coldest weather in January, with temperatures averaging a high of 29.5°C (85.1°F) and a low of 24.4°C (75.9°F).Heat index
Throughout January, the heat index is evaluated at a fiery hot 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. 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. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
The average relative humidity in January is 76%.Rainfall
In Ratujaya, in January, it is raining for 28 days, with typically 158mm (6.22") of accumulated precipitation. In Ratujaya, Indonesia, during the entire year, the rain falls for 288.9 days and collects up to 1568mm (61.73") of precipitation.Daylight
In Ratujaya, the average length of the day in January is 12h and 27min.On the first day of January, sunrise is at 05:41 and sunset at 18:10. On the last day of the month, sunrise is at 05:54 and sunset at 18:17 WIB.
Sunshine
In January, the average sunshine is 9h.UV index
With an average maximum UV index of 6, January is the month with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 6 in January transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How hot is it in 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 Ratujaya have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Ratujaya, Indonesia
- Average high temperature in January: 29.5°C
The warmest month (with the highest average high temperature) is October (32°C).
The month with the lowest average high temperature is January (29.5°C).
- Average low temperature in January: 24.4°C
The month with the highest average low temperature is November (25°C).
The coldest month (with the lowest average low temperature) is July (23.1°C).
Average pressure in January
Ratujaya, Indonesia
- Average pressure in January: 1009.7mbar
The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in January
Ratujaya, Indonesia
- Average wind speed in January: 9.8km/h
The windiest month (with the highest average wind speed) is January (9.8km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).
Average humidity in January
Ratujaya, Indonesia
- Average humidity in January: 76%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in January
Ratujaya, Indonesia
- Average rainfall in January: 158mm
The wettest month (with the highest rainfall) is March (207mm).
The driest month (with the least rainfall) is August (59mm).
Average rainfall days in January
Ratujaya, Indonesia
- Average rainfall days in January: 28 days
The month with the highest number of rainy days is March (28.5 days).
The month with the least rainy days is August (16.4 days).
Average daylight in January /
Average sunshine in January
Ratujaya, Indonesia
- Average daylight in January: 12h and 2min
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 0min
The month with the most sunshine is March (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 7h and 6min).
Average sunshine days in January
Ratujaya, Indonesia
- Average sunshine days in January: 2.1 days
The month with the most sunshine days is August (10.7 days).
The month with the least sunshine days is February (0.9 days).
Average UV index in January
Ratujaya, Indonesia
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in January
Ratujaya, Indonesia
- Average cloud cover in January: 47
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in January
Ratujaya, Indonesia
- Average visibility in January: 9km
The months with the highest visibility are May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March, April and November (9km).
