January weather forecast
Miri, Malaysia

Transitioning from December, the Miri, Malaysia climate remains warm and humid. Hot daytime temperatures of 29.5°C (85.1°F), coupled with high relative humidity of 82%, make the city feel especially steamy. Rainfall rates remain substantial, marking the continuation of the wet season. The beginning of the year does not show drastic changes but sustains the established pattern. Wind speeds are on a moderate side, avoiding an addition of extreme variations to the weather.

Temperature

As December transitions into January, Miri records an average high-temperature of a warm 29.5°C (85.1°F), showing a gentle shift from the preceding month. Nighttime readings during January register a minimal drop from daytime highs, averaging at a still moderately hot 24.9°C (76.8°F).

Heat index

For most parts of January, the heat index is computed to be a fiery hot 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

January and February, with an average relative humidity of 82%, are the most humid months in Miri.

Rainfall

In Miri, in January, it is raining for 26.8 days, with typically 186mm (7.32") of accumulated precipitation. In Miri, during the entire year, the rain falls for 280.5 days and collects up to 1574mm (61.97") of precipitation.

Sea temperature

In January, the average sea temperature in Miri is 27.8°C (82°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 54min.
On the first day of January in Miri, sunrise is at 6:30 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:35 pm +08.

Sunshine

The month with the least sunshine is January, with an average of 7.6h of sunshine.

UV index

The months with the highest UV index in Miri 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 value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in January converts into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.