September weather forecastGumaca, Philippines
September
Weather in September
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gumaca, Philippines
- Average high temperature in September: 29.8°C
The warmest month (with the highest average high temperature) is May (31.1°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in September: 26°C
The month with the highest average low temperature is June (26.7°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).
Average pressure in September
Gumaca, Philippines
- Average pressure in September: 1008.1mbar
The month with the highest atmospheric pressure is February (1013.3mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).
Average wind speed in September
Gumaca, Philippines
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is January (19.2km/h).
The calmest month (with the lowest average wind speed) is May (8.3km/h).
Average humidity in September
Gumaca, Philippines
- Average humidity in September: 81%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Gumaca, Philippines
- Average rainfall in September: 182mm
The wettest month (with the highest rainfall) is December (252mm).
The driest month (with the least rainfall) is April (65mm).
Average rainfall days in September
Gumaca, Philippines
- Average rainfall days in September: 27 days
The months with the highest number of rainy days are October and November (27.7 days).
The month with the least rainy days is February (18.5 days).
Average sea temperature in September
Gumaca, Philippines
- Average sea temperature in September: 28.7°C
The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.5°C).
Average daylight in September /
Average sunshine in September
Gumaca, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Gumaca, Philippines
- Average sunshine days in September: 2 days
The month with the most sunshine days is April (6.6 days).
The month with the least sunshine days is November (1 days).
Average UV index in September
Gumaca, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
Gumaca, Philippines
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Gumaca, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August and October (10km).
The months with the lowest visibility are July, September, November and December (9km).





