Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Silay City marks the start of September with an average high-temperature of a still warm 29.1°C (84.4°F), hinting at a slight fluctuation from August's 29.4°C (84.9°F). September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 25.1°C (77.2°F).Heat index
The heat index value during September is calculated to be a fiery hot 35°C (95°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. 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 highly critical for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In September, the average relative humidity is 81%.Rainfall
In Silay City, during September, the rain falls for 24.3 days and regularly aggregates up to 130mm (5.12") of precipitation. In Silay City, during the entire year, the rain falls for 235.6 days and collects up to 1171mm (46.1") of precipitation.Daylight
The average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 5:37 am and sunset at 5:57 pm. On the last day of September, sunrise is at 5:36 am and sunset at 5:38 pm PST.
Sunshine
In September, the average sunshine in Silay City is 8.1h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Silay City during September?
What is the average humidity in September in Silay City?
How many days does it rain in September in Silay City?
What is the average length of the day in September in Silay City?
What time are sunrise and sunset in September in Silay City?
How many hours of sunshine does Silay City have in September?
What are the months with the highest UV index in Silay City?
What are the months with the lowest UV index in Silay City?
What is the UV index reading in September in Silay City?
Average temperature in September
Silay City, Philippines
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is May (31.3°C).
The month with the lowest average high temperature is January (27.8°C).
- Average low temperature in September: 25.1°C
The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is February (24.1°C).
Average pressure in September
Silay City, Philippines
- Average pressure in September: 1008.9mbar
The month with the highest atmospheric pressure is February (1011.7mbar).
The months with the lowest atmospheric pressure are July and August (1008.6mbar).
Average wind speed in September
Silay City, Philippines
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is January (20.5km/h).
The calmest month (with the lowest average wind speed) is May (9.4km/h).
Average humidity in September
Silay City, Philippines
- Average humidity in September: 81%
The months with the highest relative humidity are January and December (82%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Silay City, Philippines
- Average rainfall in September: 130mm
The wettest month (with the highest rainfall) is July (150mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Silay City, Philippines
- Average rainfall days in September: 24.3 days
The month with the highest number of rainy days is July (25.5 days).
The month with the least rainy days is February (11.3 days).
Average daylight in September /
Average sunshine in September
Silay City, Philippines
- Average daylight in September: 12h and 1min
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 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Silay City, Philippines
- Average sunshine days in September: 4.5 days
The month with the most sunshine days is March (16.5 days).
The month with the least sunshine days is June (3.4 days).
Average UV index in September
Silay City, 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
Silay City, Philippines
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is April (Cloud cover 27).
Average visibility in September
Silay City, 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).
