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 snowfall 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
January's arrival brings an average high-temperature of a still warm 29°C (84.2°F), slightly deviating from December's 28.9°C (84°F). The average low-temperature, in January, is a still moderately hot 23.8°C (74.8°F).Heat index
The heat index in January is calculated to be a torrid 35°C (95°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In January, the average relative humidity is 80%.Rainfall
In January, the rain falls for 21 days. Throughout January, 85mm (3.35") of precipitation is accumulated. In Jantho, during the entire year, the rain falls for 225.1 days and collects up to 1172mm (46.14") of precipitation.Snowfall
January through August, October through December are months without snowfall.Daylight
In Jantho, the average length of the day in January is 11h and 52min.On the first day of January, sunrise is at 06:45 and sunset at 18:35. On the last day of the month, sunrise is at 06:53 and sunset at 18:47 WIB.
Sunshine
In Jantho, the average sunshine in January is 8.2h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 7 in January suggests the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is January?
What is the average humidity in January?
How many days does it rain in January?
When it does not snow?
How many hours of daylight does Jantho have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the highest UV index?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Jantho, Indonesia
- Average high temperature in January: 29°C
The warmest month (with the highest average high temperature) is June (31.3°C).
The month with the lowest average high temperature is December (28.9°C).
- Average low temperature in January: 23.8°C
The month with the highest average low temperature is May (25.4°C).
The coldest months (with the lowest average low temperature) are January and February (23.8°C).
Average pressure in January
Jantho, Indonesia
- Average pressure in January: 1010.5mbar
The months with the highest atmospheric pressure are January and September (1010.5mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).
Average wind speed in January
Jantho, Indonesia
- Average wind speed in January: 10.1km/h
The windiest month (with the highest average wind speed) is July (11.2km/h).
The calmest month (with the lowest average wind speed) is April (6.7km/h).
Average humidity in January
Jantho, Indonesia
- Average humidity in January: 80%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in January
Jantho, Indonesia
- Average rainfall in January: 85mm
The wettest months (with the highest rainfall) are May and November (160mm).
The driest month (with the least rainfall) is June (46mm).
Average rainfall days in January
Jantho, Indonesia
- Average rainfall days in January: 21 days
The month with the highest number of rainy days is November (24.9 days).
The month with the least rainy days is July (11.3 days).
Average snowfall days in January
Jantho, Indonesia
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Jantho, Indonesia
- Average daylight in January: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January: 8h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in January
Jantho, Indonesia
- Average sunshine days in January: 6.9 days
The month with the most sunshine days is July (17.9 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in January
Jantho, 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
Jantho, Indonesia
- Average cloud cover in January: 38
The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are February and June (Cloud cover 31).
Average visibility in January
Jantho, Indonesia
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are April and November (9km).
