September weather forecast
Sumilang, Philippines

The first month of the autumn, September, is still a hot month in Sumilang, Philippines, with temperature in the range of an average high of 30.4°C (86.7°F) and an average low of 24.8°C (76.6°F).

Temperature

The transition into September reveals an average high-temperature of a still tropical 30.4°C (86.7°F), mirroring a close resemblance to August. An average low-temperature of 24.8°C (76.6°F) is observed during September nights in Sumilang.

Heat index

The heat index in September is estimated at a very hot 39°C (102.2°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the highest humidity in Sumilang are July through September, with an average relative humidity of 81%.

Rainfall

In September, in Sumilang, Philippines, the rain falls for 22.3 days. Throughout September, 122mm (4.8") of precipitation is accumulated. Throughout the year, in Sumilang, there are 203.1 rainfall days, and 842mm (33.15") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of September, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

The average sunshine in September in Sumilang is 8.4h.

UV index

February through November, with an average maximum UV index of 7, are months with the highest UV index in Sumilang. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.