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
Weather in January
Temperature
January and February, when the average high-temperature reaches 29.8°C (85.6°F), are the coldest months.Heat index
The heat index in January is computed to be a sweltering 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Jatinegara, the average relative humidity in January is 73%.Rainfall
In January, the rain falls for 24.8 days. Throughout January, 127mm (5") of precipitation is accumulated. In Jatinegara, during the entire year, the rain falls for 252 days and collects up to 1150mm (45.28") of precipitation.Daylight
In Jatinegara, the average length of the day in January is 12h and 26min.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 Jatinegara, Indonesia, the average sunshine in January is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Jatinegara. The months with the lowest UV index in Jatinegara are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 7 during January translates into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Jatinegara?
How hot does it get in Jatinegara in January?
What is the average humidity in January in Jatinegara?
How many days does it rain in January in Jatinegara?
How many hours of daylight does Jatinegara have in January?
What time are sunrise and sunset in January in Jatinegara?
How many hours of sunshine does Jatinegara have in January?
When is the highest UV index in Jatinegara?
What are the months with the lowest UV index in Jatinegara?
How high is the UV index in January in Jatinegara?
Average temperature in January
Jatinegara, Indonesia
- Average high temperature in January: 29.8°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are January and February (29.8°C).
- Average low temperature in January: 25.6°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.7°C).
Average pressure in January
Jatinegara, Indonesia
- Average pressure in January: 1009.7mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in January
Jatinegara, Indonesia
- Average wind speed in January: 12.4km/h
The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).
Average humidity in January
Jatinegara, Indonesia
- Average humidity in January: 73%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Jatinegara, Indonesia
- Average rainfall in January: 127mm
The wettest month (with the highest rainfall) is March (144mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in January
Jatinegara, Indonesia
- Average rainfall days in January: 24.8 days
The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (11.6 days).
Average daylight in January /
Average sunshine in January
Jatinegara, 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 2min
The month with the most sunshine is March (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in January
Jatinegara, Indonesia
- Average sunshine days in January: 5 days
The month with the most sunshine days is August (16 days).
The month with the least sunshine days is February (2.6 days).
Average UV index in January
Jatinegara, 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
Jatinegara, Indonesia
- Average cloud cover in January: 46
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in January
Jatinegara, 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).
Jatinegara, Indonesia
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