September weather forecastMiri, Malaysia

Weather in September

September sustains the Miri, Malaysia weather trend set in August, emphasizing climate stability. However, the late afternoons and evenings witness a rise in rainfall from the drip in August. Cloud coverage displays a slight increase, contributing to the small rise in rainfall. As the city approaches the last quarter, wind speed raises gradually. The changes are subtle, and the residents adjust with ease.

Temperature

The average high-temperature in Miri during September is a still tropical 31.3°C (88.3°F), showing a negligible deviation from August. September in Miri, Malaysia, sees the temperature falling to a mean low of 25.5°C (77.9°F).

Heat index

For September, the heat index is computed to be an extremely hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 76%.

Rainfall

The month with the least rainfall is September, when the rain falls for 22.5 days and typically collects 79mm (3.11") of precipitation.

Sea temperature

In Miri, in September, the average water temperature is 29.7°C (85.5°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Miri, the average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 6:18 am and sunset at 6:29 pm. On the last day of September, in Miri, sunrise is at 6:11 am and sunset at 6:16 pm +08.

Sunshine

September has the most sunshine of the year in Miri, with an average of 9h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take heed! Reflections of sand and water make the Sun's UV rays stronger.