September weather forecast
Gumaca, Philippines

September, the first month of the autumn in Gumaca, is also a moderately hot month, with an average temperature ranging between min 26°C (78.8°F) and max 29.8°C (85.6°F).

Temperature

The advent of September reveals an average high-temperature of a warm 29.8°C (85.6°F), showing minimal difference from the prior month. Gumaca documents a consistent average low-temperature of 26°C (78.8°F) at night during September.

Heat index

September's average heat index is computed to be a torrid 37°C (98.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In September, in Gumaca, the rain falls for 27 days. Throughout September, 182mm (7.17") of precipitation is accumulated. Throughout the year, there are 295.7 rainfall days, and 1738mm (68.43") of precipitation is accumulated.

Sea temperature

In Gumaca, Philippines, the average seawater temperature in September is 28.7°C (83.7°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of September in Gumaca, sunrise is at 5:39 am and sunset at 6:03 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 5:42 pm PST.

Sunshine

The average sunshine in September in Gumaca is 8.5h.

UV index

February 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 hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the UV index of 7 transforms into the following advice:
Deter overexposure. Protecting against the sun's effects is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be mindful! Sand and water reflections can up the Sun's UV exposure.