January weather forecastBertais, Indonesia

January

Weather in January

January, like December, in Bertais, Indonesia, is a moderately hot summer month, with temperature in the range of an average high of 28.1°C (82.6°F) and an average low of 25.7°C (78.3°F).

Temperature

In the transition from December to January, Bertais reports an average high-temperature of a still moderately hot 28.1°C (82.6°F), indicating a close resemblance to the prior month. Bertais's nocturnal January readings average at a still moderately hot 25.7°C (78.3°F), showing little variation from the daytime temperatures.

Heat index

In January, the average heat index is estimated at a tropical 32°C (89.6°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

January through March, May through July, September and December, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Bertais, in January, it is raining for 27.1 days, with typically 143mm (5.63") of accumulated precipitation. In Bertais, during the entire year, the rain falls for 231.2 days and collects up to 1002mm (39.45") of precipitation.

Daylight

In Bertais, the average length of the day in January is 12h and 34min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:37. On the last day of January, sunrise is at 06:14 and sunset at 18:43 WITA.

Sunshine

With an average of 7.9h of sunshine, January has the least sunshine of the year.

UV index

The months with the highest UV index are January through May, July through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a daily maximum UV index of 7 leads to the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Updated: Aug 11, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in January, in Bertais, is 28.1°C (82.6°F) and the average low-temperature is 25.7°C (78.3°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in January is estimated at 32°C (89.6°F).

The months with the highest humidity are January through March, May through July, September and December, with an average relative humidity of 79%.

In Bertais, the average relative humidity in January is 79%.

In January, the rain falls for 27.1 days. Throughout January, 143mm (5.63") of precipitation is accumulated.

The average day length in January is 12h and 34min.

In January, on the first day of the month, sunrise is at 06:00 and sunset at 18:37. On the last day of the month, sunrise is at 06:14 and sunset at 18:43 WITA.

With an average of 7.9h of sunshine, January has the least sunshine of the year.

The average sunshine duration in January is 7.9h.

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in January in Bertais is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

28.4°C

28.1°C

28.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.8km/h

11.9km/h

10km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

3.7

2.9

3.6

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Bertais, Indonesia

Average high temperature in January: 28.1°C

The warmest month (with the highest average high temperature) is November (29°C).
The months with the lowest average high temperature are July and August (27.3°C).

Average low temperature in January: 25.7°C

The month with the highest average low temperature is December (26.1°C).
The coldest month (with the lowest average low temperature) is August (23.2°C).

Average pressure in January
Bertais, Indonesia

Average pressure in January: 1008.5mbar

The month with the highest atmospheric pressure is August (1011.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).

Average wind speed in January
Bertais, Indonesia

Average wind speed in January: 11.1km/h

The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is April (7.6km/h).

Average humidity in January
Bertais, Indonesia

Average humidity in January: 79%

The months with the highest relative humidity are January, February, March, May, June, July, September and December (79%).
The month with the lowest relative humidity is October (77%).

Average rainfall in January
Bertais, Indonesia

Average rainfall in January: 143mm

The wettest month (with the highest rainfall) is December (165mm).
The driest month (with the least rainfall) is August (10mm).

Average rainfall days in January
Bertais, Indonesia

Average rainfall days in January: 27.1 days

The month with the highest number of rainy days is January (27.1 days).
The month with the least rainy days is August (10.3 days).

Average daylight in January /
Average sunshine in January
Bertais, Indonesia

Average daylight in January: 12h and 36min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).

Average sunshine in January: 7h and 54min

The month with the most sunshine is October (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 54min).

Average sunshine days in January
Bertais, Indonesia

Average sunshine days in January: 2.9 days

The month with the most sunshine days is August (16.1 days).
The month with the least sunshine days is January (2.9 days).

Average UV index in January
Bertais, Indonesia

Average UV index in January: 7

The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).

Average cloud cover in January
Bertais, Indonesia

Average cloud cover in January: 44

The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are August and September (Cloud cover 22).

Average visibility in January
Bertais, 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).