January weather forecast
Bandar Seri Begawan, Brunei

In Bandar Seri Begawan, Brunei, January greets inhabitants with consistently warm weather and high rainfall, marking the beginning of the year with liquid bounty. The month exhibits the typical oceanic climate with no significant temperature swings, offering a stable humidity level that makes it comfortable for residents and visitors alike. Furthermore, weather patterns strongly favor abundant rainfall making it a robust start to the year. Interestingly, January's humidity at 81% coupled with a rainfall of 144mm (5.67"), sets the pace for the succeeding month. Wind speed is typically moderate, and UV index remains stable paving the way for a pleasant start to the year.

Temperature

Bandar Seri Begawan's lowest average temperatures are recorded in January and February, reaching a high of 29.2°C (84.6°F).

Heat index

For most parts of January, the heat index is appraised at a torrid 36°C (96.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

January through March, with an average relative humidity of 81%, are the most humid months.

Rainfall

In January, the rain falls for 26.8 days. Throughout January, 144mm (5.67") of precipitation is accumulated. Throughout the year, there are 310.9 rainfall days, and 1693mm (66.65") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature is 27.5°C (81.5°F).
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

The average length of the day in January is 11h and 52min.
On the first day of the month, sunrise is at 06:28 and sunset at 18:18. On the last day of January, sunrise is at 06:36 and sunset at 18:30 +08.

Sunshine

January has the least sunshine of the year in Bandar Seri Begawan, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in January interprets into the following advice:
Fend off overexposure. Sun protection is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.