September weather forecastSibonga, Philippines
September
Weather in September
September, the first month of the autumn in Sibonga, is still a warm month, with temperature in the range of an average low of 25.2°C (77.4°F) and an average high of 29.9°C (85.8°F).Temperature
The transition from August to September sees an average high-temperature of a warm 29.9°C (85.8°F), indicating a minor variance from the prior month. Sibonga documents a consistent average low-temperature of 25.2°C (77.4°F) at night during September.Heat index
For most parts of September, the heat index is calculated to be a torrid 37°C (98.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in September is 77%.Rainfall
In Sibonga, in September, it is raining for 15.9 days, with typically 48mm (1.89") of accumulated precipitation. In Sibonga, during the entire year, the rain falls for 185 days and collects up to 580mm (22.83") of precipitation.Sea temperature
In Sibonga, the average seawater temperature in September is 29.1°C (84.4°F).Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.
Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 5:36 am and sunset at 5:54 pm. On the last day of September, sunrise is at 5:34 am and sunset at 5:36 pm PST.
Sunshine
In Sibonga, the average sunshine in September is 8.3h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 7 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sibonga, Philippines
- Average high temperature in September: 29.9°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 (27.8°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is February (24°C).
Average pressure in September
Sibonga, Philippines
- Average pressure in September: 1009.1mbar
The month with the highest atmospheric pressure is February (1011.4mbar).
The months with the lowest atmospheric pressure are July and August (1008.8mbar).
Average wind speed in September
Sibonga, Philippines
- Average wind speed in September: 10.7km/h
The windiest months (with the highest average wind speed) are January and February (17.1km/h).
The calmest month (with the lowest average wind speed) is June (8.3km/h).
Average humidity in September
Sibonga, Philippines
- Average humidity in September: 77%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Sibonga, Philippines
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is July (77mm).
The driest month (with the least rainfall) is March (19mm).
Average rainfall days in September
Sibonga, Philippines
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (11.3 days).
Average sea temperature in September
Sibonga, Philippines
- Average sea temperature in September: 29.1°C
The best month for swimming (with the highest average sea temperature) is June (29.6°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).
Average daylight in September /
Average sunshine in September
Sibonga, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Sibonga, Philippines
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is March (16.8 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in September
Sibonga, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Sibonga, Philippines
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is April (Cloud cover 31).
Average visibility in September
Sibonga, Philippines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





