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
As Rowosari welcomes January, the average high-temperature stabilizes at a still moderately hot 28.9°C (84°F), showing little deviation from December's 28.5°C (83.3°F). During the nights of January, Rowosari maintains an almost steady temperature with an average low of 24.1°C (75.4°F).Heat index
In January, the average heat index is estimated at a tropical 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. 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 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
The months with the lowest humidity are January, March, October and December, with an average relative humidity of 80%.Rainfall
The months with the most rainfall are January and March, with an average 185mm (7.28") of precipitation.Daylight
In January, the average length of the day is 12h and 28min.On the first day of January, sunrise is at 05:27 and sunset at 17:58. On the last day of the month, sunrise is at 05:40 and sunset at 18:05 WIB.
Sunshine
In January, the average sunshine is 9.5h.UV index
The months with the lowest UV index are January, June through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in January leads to these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer 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
How hot is January?
What is the least humid month?
What is the average humidity in January?
What is the rainiest month?
How many days does it rain in January?
How many hours of daylight does Rowosari have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rowosari, Indonesia
- Average high temperature in January: 28.9°C
The warmest months (with the highest average high temperature) are February, March and April (29°C).
The month with the lowest average high temperature is July (27°C).
- Average low temperature in January: 24.1°C
The month with the highest average low temperature is April (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.7°C).
Average pressure in January
Rowosari, Indonesia
- Average pressure in January: 1009.3mbar
The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in January
Rowosari, Indonesia
- Average wind speed in January: 8.9km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is March (7.1km/h).
Average humidity in January
Rowosari, Indonesia
- Average humidity in January: 80%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are January, March, October and December (80%).
Average rainfall in January
Rowosari, Indonesia
- Average rainfall in January: 185mm
The wettest months (with the highest rainfall) are January and March (185mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in January
Rowosari, Indonesia
- Average rainfall days in January: 28 days
The month with the highest number of rainy days is January (28 days).
The month with the least rainy days is August (18.2 days).
Average daylight in January /
Average sunshine in January
Rowosari, 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 42min).
- Average sunshine in January: 9h and 3min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).
Average sunshine days in January
Rowosari, Indonesia
- Average sunshine days in January: 2 days
The month with the most sunshine days is July (5.5 days).
The month with the least sunshine days is February (1.2 days).
Average UV index in January
Rowosari, Indonesia
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May and October (UV index 7).
The months with the lowest UV index are January, June, July, August, September, November and December (UV index 6).
Average cloud cover in January
Rowosari, Indonesia
- Average cloud cover in January: 47
The months with the most cloud cover are January and December (Cloud cover 47).
The months with the least cloud cover are May, June and August (Cloud cover 36).
Average visibility in January
Rowosari, Indonesia
- Average visibility in January: 9km
The months with the highest visibility are February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, April and November (9km).
