September weather forecastSilang, Philippines
September
Weather in September
The first month of the autumn, September, is still a warm month in Silang, Philippines, with an average temperature varying between 29.9°C (85.8°F) and 24.1°C (75.4°F).Temperature
September experiences an average high-temperature of a still warm 29.9°C (85.8°F), barely different from August's 29.7°C (85.5°F). Silang experiences an average nighttime temperature of 24.1°C (75.4°F) in the month of September.Heat index
September's mean heat index is estimated at a torrid 39°C (102.2°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.In reference to the heat index, it's for places in shade and with a slight wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. 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. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
The months with the highest humidity in Silang are July through September, with an average relative humidity of 84%.Rainfall
In September, in Silang, the rain falls for 25.5 days. Throughout September, 146mm (5.75") of precipitation is accumulated. Throughout the year, in Silang, there are 206.9 rainfall days, and 944mm (37.17") of precipitation is accumulated.Daylight
In September, the average length of the day in Silang, Philippines, is 12h and 13min.On the first day of September in Silang, Philippines, sunrise is at 5:44 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 5:46 pm PST.
Sunshine
In Silang, the average sunshine in September is 8h.UV index
The months with the highest UV index are February through June, August through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 7 in September transforms into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Silang, Philippines
- Average high temperature in September: 29.9°C
The warmest month (with the highest average high temperature) is April (32.6°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is May (25.4°C).
The coldest month (with the lowest average low temperature) is February (22.4°C).
Average pressure in September
Silang, 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
Silang, Philippines
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is May (7.2km/h).
Average humidity in September
Silang, Philippines
- Average humidity in September: 84%
The months with the highest relative humidity are July, August and September (84%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Silang, Philippines
- Average rainfall in September: 146mm
The wettest month (with the highest rainfall) is August (174mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Silang, Philippines
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (7.1 days).
Average daylight in September /
Average sunshine in September
Silang, 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 0min
The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Silang, Philippines
- Average sunshine days in September: 3.1 days
The month with the most sunshine days is March (18.8 days).
The month with the least sunshine days is June (3 days).
Average UV index in September
Silang, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, August, September, October and November (UV index 7).
The months with the lowest UV index are January, July and December (UV index 6).
Average cloud cover in September
Silang, Philippines
- Average cloud cover in September: 46
The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is April (Cloud cover 28).
Average visibility in September
Silang, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are June, July, August, September, October and November (9km).





