September weather forecastLasam, Philippines

Weather in September

The first month of the autumn, September, is still a tropical month in Lasam, Philippines, with an average temperature varying between 22.8°C (73°F) and 31.2°C (88.2°F).

Temperature

The shift to September signals an average high-temperature of a still tropical 31.2°C (88.2°F), subtly varied from August's 31.8°C (89.2°F). Lasam experiences an average low-temperature of 22.8°C (73°F) in month of September.

Heat index

The heat index in September is evaluated at a blistering 43°C (109.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
Observations indicate that the heat index values are for shady locations with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. 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.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Lasam, the average relative humidity in September is 85%.

Rainfall

In Lasam, in September, it is raining for 21.4 days, with typically 131mm (5.16") of accumulated precipitation. Throughout the year, there are 243.1 rainfall days, and 1398mm (55.04") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September in Lasam, sunrise is at 5:39 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 5:43 pm PST.

Sunshine

In September, the average sunshine is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.