September weather forecastSibaguan, Philippines
September
Weather in September
September, the first month of the autumn in Sibaguan, is also a moderately hot month, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 29.7°C (85.5°F).Temperature
The beginning of September records an average high-temperature of a moderately hot 29.7°C (85.5°F), marking a negligible difference from August's 30.1°C (86.2°F). In Sibaguan, the nighttime temperature shows a slight difference from the daytime high, averaging to a still warm 25.5°C (77.9°F) during September.Heat index
During September, the heat index is evaluated at a very hot 36°C (96.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Sibaguan, the average relative humidity in September is 79%.Rainfall
In Sibaguan, in September, during 23.4 rainfall days, 100mm (3.94") of precipitation is typically accumulated. Throughout the year, there are 294.2 rainfall days, and 1566mm (61.65") of precipitation is accumulated.Sea temperature
In Sibaguan, the average seawater temperature in September is 28.8°C (83.8°F).Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.
Daylight
In Sibaguan, Philippines, the average length of the day in September is 12h and 11min.On the first day of September, sunrise is at 5:38 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 5:40 pm PST.
Sunshine
In Sibaguan, the average sunshine in September is 8.4h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Sibaguan. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Attention! The combination of sand and water reflections enhances UV ray intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sibaguan, Philippines
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is May (30.8°C).
The month with the lowest average high temperature is January (27.1°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is February (24.6°C).
Average pressure in September
Sibaguan, Philippines
- Average pressure in September: 1008.7mbar
The month with the highest atmospheric pressure is February (1012mbar).
The months with the lowest atmospheric pressure are July and August (1008.4mbar).
Average wind speed in September
Sibaguan, Philippines
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest months (with the lowest average wind speed) are May and June (9.7km/h).
Average humidity in September
Sibaguan, Philippines
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Sibaguan, Philippines
- Average rainfall in September: 100mm
The wettest month (with the highest rainfall) is December (243mm).
The driest month (with the least rainfall) is April (67mm).
Average rainfall days in September
Sibaguan, Philippines
- Average rainfall days in September: 23.4 days
The month with the highest number of rainy days is November (27.4 days).
The month with the least rainy days is February (21.3 days).
Average sea temperature in September
Sibaguan, Philippines
- Average sea temperature in September: 28.8°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 (26.4°C).
Average daylight in September /
Average sunshine in September
Sibaguan, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Sibaguan, Philippines
- Average sunshine days in September: 5.2 days
The month with the most sunshine days is August (6.1 days).
The month with the least sunshine days is November (1.5 days).
Average UV index in September
Sibaguan, Philippines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Sibaguan, Philippines
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Sibaguan, Philippines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
