January weather forecastGrogol, Indonesia
January
Weather in January
January, like December, in Grogol, Indonesia, is a moderately hot summer month, with temperature in the range of an average low of 25.6°C (78.1°F) and an average high of 29.8°C (85.6°F).Temperature
Grogol experiences the lowest of its temperatures in January and February, when the average high-temperatures rise to 29.8°C (85.6°F).Heat index
During January, the heat index is evaluated at a very hot 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in January is 73%.Rainfall
In January, in Grogol, the rain falls for 24.8 days. Throughout January, 127mm (5") of precipitation is accumulated. Throughout the year, in Grogol, there are 252 rainfall days, and 1150mm (45.28") of precipitation is accumulated.Daylight
The average length of the day in January is 12h and 26min.On the first day of the month, sunrise is at 05:41 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 in Grogol is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Grogol. The months with the lowest UV index in Grogol are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in January translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Grogol, 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
Grogol, 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
Grogol, 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
Grogol, 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
Grogol, 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
Grogol, 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
Grogol, Indonesia
- Average daylight in January: 12h and 24min
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 24min
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
Grogol, 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
Grogol, 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
Grogol, 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
Grogol, 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).





