January weather forecastBiru, Indonesia

January

Weather in January

January, the same as December, is another warm summer month in Biru, Indonesia, with an average temperature varying between 28.4°C (83.1°F) and 21.8°C (71.2°F).

Temperature

Biru in January records a high-temperature average of a still warm 28.4°C (83.1°F), on par with December. Biru cools down to an average low-temperature of 21.8°C (71.2°F) throughout the month of January.

Heat index

Throughout January, the heat index is computed to be a tropical 33°C (91.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The average relative humidity in January is 82%.

Rainfall

In Biru, during January, the rain falls for 30.3 days and regularly aggregates up to 280mm (11.02") of precipitation. Throughout the year, there are 304.3 rainfall days, and 2093mm (82.4") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 29min.
On the first day of January, sunrise is at 05:36 and sunset at 18:08. On the last day of the month, sunrise is at 05:49 and sunset at 18:14 WIB.

Sunshine

In Biru, Indonesia, the average sunshine in January is 8.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a daily UV index of 6 turns into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Updated: Aug 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In January, in Biru, the average high-temperature is 28.4°C (83.1°F), and the average low-temperature is 21.8°C (71.2°F). In January, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 33°C (91.4°F).

The average relative humidity in January is 82%.

In Biru, during January, the rain falls for 30.3 days and regularly aggregates up to 280mm (11.02") of precipitation.

The average day length in January in Biru is 12h and 29min.

On the first day of January, sunrise is at 05:36 and sunset at 18:08. On the last day of the month, sunrise is at 05:49 and sunset at 18:14 WIB.

In Biru, the average sunshine duration in January is 8.3h.

January through December, with an average maximum UV index of 6, are months with the highest UV index.

January through December, with an average maximum UV index of 6, are months with the lowest UV index.

The average daily maximum UV index in January is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to 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

28.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.2km/h

4.9km/h

4.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.4

0.2

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Biru, Indonesia

Average high temperature in January: 28.4°C

The warmest month (with the highest average high temperature) is October (28.9°C).
The month with the lowest average high temperature is July (27°C).

Average low temperature in January: 21.8°C

The months with the highest average low temperature are January and December (21.8°C).
The coldest month (with the lowest average low temperature) is August (19.2°C).

Average pressure in January
Biru, Indonesia

Average pressure in January: 1009.6mbar

The month with the highest atmospheric pressure is September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).

Average wind speed in January
Biru, Indonesia

Average wind speed in January: 4.5km/h

The windiest month (with the highest average wind speed) is September (6.7km/h).
The calmest month (with the lowest average wind speed) is February (4.1km/h).

Average humidity in January
Biru, Indonesia

Average humidity in January: 82%

The months with the highest relative humidity are May, June and July (86%).
The months with the lowest relative humidity are September and October (81%).

Average rainfall in January
Biru, Indonesia

Average rainfall in January: 280mm

The wettest month (with the highest rainfall) is March (310mm).
The driest month (with the least rainfall) is August (30mm).

Average rainfall days in January
Biru, Indonesia

Average rainfall days in January: 30.3 days

The month with the highest number of rainy days is March (30.6 days).
The month with the least rainy days is August (16.4 days).

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

Average daylight in January: 12h and 30min

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: 8h and 18min

The month with the most sunshine is October (Average sunshine: 8h and 48min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).

Average sunshine days in January
Biru, Indonesia

Average sunshine days in January: 0.4 days

The month with the most sunshine days is August (10.8 days).
The months with the least sunshine days are February and March (0.2 days).

Average UV index in January
Biru, Indonesia

Average UV index in January: 6

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