September weather forecastBiwas, Philippines
September
Weather in September
The first month of the autumn, September, is also a hot month in Biwas, Philippines, with temperature in the range of an average low of 24.9°C (76.8°F) and an average high of 30°C (86°F).Temperature
Biwas, Philippines, logs a shift to a still tropical 30°C (86°F) as the average high temperature in September, the same as August. An average minimum temperature of 24.9°C (76.8°F) is recorded in Biwas during the month of September.Heat index
The average heat index in September is appraised at a sweltering 38°C (100.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
July through September, with an average relative humidity of 82%, are the most humid months in Biwas.Rainfall
In September, the rain falls for 25.4 days. Throughout September, 109mm (4.29") of precipitation is accumulated. In Biwas, during the entire year, the rain falls for 199.3 days and collects up to 698mm (27.48") of precipitation.Daylight
In Biwas, the average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 5:44 am and sunset at 6:08 pm. On the last day of September, in Biwas, sunrise is at 5:46 am and sunset at 5:46 pm PST.
Sunshine
The average sunshine in September in Biwas is 8.2h.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 in September translates into these instructions:
Deter overexposure. Protecting against the sun's effects is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Biwas, Philippines
- Average high temperature in September: 30°C
The warmest months (with the highest average high temperature) are April and May (32.8°C).
The month with the lowest average high temperature is January (28.3°C).
- Average low temperature in September: 24.9°C
The months with the highest average low temperature are May and June (26.1°C).
The coldest month (with the lowest average low temperature) is February (23.1°C).
Average pressure in September
Biwas, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1013.1mbar).
The month with the lowest atmospheric pressure is August (1007.7mbar).
Average wind speed in September
Biwas, Philippines
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is January (13.1km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).
Average humidity in September
Biwas, Philippines
- Average humidity in September: 82%
The months with the highest relative humidity are July, August and September (82%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Biwas, Philippines
- Average rainfall in September: 109mm
The wettest months (with the highest rainfall) are July and August (128mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in September
Biwas, Philippines
- Average rainfall days in September: 25.4 days
The month with the highest number of rainy days is July (27.3 days).
The month with the least rainy days is February (6.2 days).
Average daylight in September /
Average sunshine in September
Biwas, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is April (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Biwas, Philippines
- Average sunshine days in September: 2.8 days
The month with the most sunshine days is March (20.6 days).
The months with the least sunshine days are July and September (2.8 days).
Average UV index in September
Biwas, 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
Biwas, Philippines
- Average cloud cover in September: 45
The months with the most cloud cover are July and August (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 25).
Average visibility in September
Biwas, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (10km).
The month with the lowest visibility is September (9km).





