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
The month of January, characterized by an average high of 29.5°C (85.1°F) and a low of 23.8°C (74.8°F), is recognized as the coldest.Heat index
The heat index value for January is evaluated at a very hot 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Kranji, the average relative humidity in January is 76%.Rainfall
In Kranji, in January, during 23.4 rainfall days, 93mm (3.66") of precipitation is typically accumulated. Throughout the year, there are 242.8 rainfall days, and 1039mm (40.91") of precipitation is accumulated.Daylight
The average length of the day in January is 12h and 26min.On the first day of January, sunrise is at 05:40 and sunset at 18:09. On the last day of the month, sunrise is at 05:53 and sunset at 18:16 WIB.
Sunshine
The average sunshine in January is 8.7h.UV index
January is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 6 in January leads to these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How hot does it get in January?
What is the average humidity in January in Kranji?
How many days does it rain in January?
How many hours of daylight does Kranji have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Kranji, Indonesia
- Average high temperature in January: 29.5°C
The warmest month (with the highest average high temperature) is October (32.3°C).
The month with the lowest average high temperature is January (29.5°C).
- Average low temperature in January: 23.8°C
The month with the highest average low temperature is November (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (22.5°C).
Average pressure in January
Kranji, 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
Kranji, Indonesia
- Average wind speed in January: 9.1km/h
The windiest month (with the highest average wind speed) is January (9.1km/h).
The calmest month (with the lowest average wind speed) is November (6.2km/h).
Average humidity in January
Kranji, Indonesia
- Average humidity in January: 76%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in January
Kranji, Indonesia
- Average rainfall in January: 93mm
The wettest month (with the highest rainfall) is April (140mm).
The driest month (with the least rainfall) is August (36mm).
Average rainfall days in January
Kranji, Indonesia
- Average rainfall days in January: 23.4 days
The month with the highest number of rainy days is November (24.9 days).
The month with the least rainy days is August (11.7 days).
Average daylight in January /
Average sunshine in January
Kranji, 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: 8h and 4min
The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 6min).
Average sunshine days in January
Kranji, Indonesia
- Average sunshine days in January: 5.2 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is November (3.5 days).
Average UV index in January
Kranji, 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
Kranji, Indonesia
- Average cloud cover in January: 48
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Kranji, Indonesia
- Average visibility in January: 9km
The months with the highest visibility are March, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and April (9km).
