January weather forecastSumber, Indonesia
January
Weather in January
January, the same as December, is a moderately hot summer month in Sumber, Indonesia, with an average temperature ranging between max 29.7°C (85.5°F) and min 24.3°C (75.7°F).Temperature
Sumber transitions into January recording an average high-temperature of a warm 29.7°C (85.5°F), closely aligning with the preceding month's temperature. An average temperature of 24.3°C (75.7°F) marks the nights in January.Heat index
January's mean heat index is appraised at a sweltering 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In January, the average relative humidity in Sumber is 78%.Rainfall
In January, the rain falls for 24.2 days. Throughout January, 131mm (5.16") of precipitation is accumulated. Throughout the year, there are 222.3 rainfall days, and 950mm (37.4") of precipitation is accumulated.Daylight
In Sumber, the average length of the day in January is 12h and 28min.On the first day of the month, sunrise is at 05:33 and sunset at 18:04. On the last day of January, sunrise is at 05:47 and sunset at 18:11 WIB.
Sunshine
The average sunshine in January is 9.1h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the maximum UV index of 7 transforms into these recommendations:
Ward off overexposure. Defence against solar harm is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sumber, Indonesia
- Average high temperature in January: 29.7°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.4°C).
- Average low temperature in January: 24.3°C
The months with the highest average low temperature are November and December (25°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).
Average pressure in January
Sumber, Indonesia
- Average pressure in January: 1009.6mbar
The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in January
Sumber, 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 April (6.9km/h).
Average humidity in January
Sumber, Indonesia
- Average humidity in January: 78%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in January
Sumber, Indonesia
- Average rainfall in January: 131mm
The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in January
Sumber, Indonesia
- Average rainfall days in January: 24.2 days
The month with the highest number of rainy days is December (25.5 days).
The month with the least rainy days is August (6.5 days).
Average daylight in January /
Average sunshine in January
Sumber, Indonesia
- Average daylight in January: 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 42min).
- Average sunshine in January: 9h and 6min
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 12min).
Average sunshine days in January
Sumber, 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 (3.5 days).
Average UV index in January
Sumber, 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
Sumber, 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
Sumber, 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).
