September weather forecast
Biñan, Philippines

Weather in September

The first month of the autumn, September, is still a warm month in Biñan, Philippines, with an average temperature varying between 29.9°C (85.8°F) and 24.1°C (75.4°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still moderately hot 29.9°C (85.8°F). In September, the average low-temperature is 24.1°C (75.4°F).

Heat index

In September, the average heat index is evaluated at a torrid 38.5°C (101.3°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

July through September, with an average relative humidity of 84%, are the most humid months.

Rainfall

In September, in Biñan, the rain falls for 25.5 days. Throughout September, 146mm (5.75") of precipitation is accumulated. Throughout the year, there are 206.9 rainfall days, and 944mm (37.17") of precipitation is accumulated.

Daylight

The average length of the day in September in Biñan is 12h and 13min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of September, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

In September, the average sunshine is 8h.

UV index

February through June, August through November, with an average maximum UV index of 7, are months with the highest UV index in Biñan. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Biñan?

In September, in Biñan, the average high-temperature is 29.9°C (85.8°F), and the average low-temperature is 24.1°C (75.4°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is evaluated at 38.5°C (101.3°F).

What are the most humid months in Biñan?

July through September, with an average relative humidity of 84%, are most humid months in Biñan.

What is the average humidity in September in Biñan?

The average relative humidity in September is 84%.

How many days does it rain in September in Biñan?

In Biñan, Philippines, in September, it is raining for 25.5 days, with typically 146mm (5.75") of accumulated precipitation.

How many hours of daylight does Biñan have in September?

In September, the average day length in Biñan, Philippines, is 12h and 13min.

When is the sunrise / sunset in September in Biñan?

In September, on the first day of the month, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of the month, in Biñan, sunrise is at 5:45 am and sunset at 5:46 pm PST.

How many hours of sunshine does Biñan have in September?

In September, the average sunshine duration is 8h.

When is the highest UV index in Biñan?

The months with the highest UV index in Biñan, Philippines, are February through June, August through November, with an average maximum UV index of 7.

What is the UV index reading in September in Biñan?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in September
Biñan, Philippines

Average temperature in September - Biñan, 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).

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Average pressure in September
Biñan, Philippines

Average pressure in September - Biñan, 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).

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Average wind speed in September
Biñan, Philippines

Average wind speed in September - Biñan, 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).

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Average humidity in September
Biñan, Philippines

Average humidity in September - Biñan, 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%).

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Average rainfall in September
Biñan, Philippines

Average rainfall in September - Biñan, 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).

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Average rainfall days in September
Biñan, Philippines

Average rainfall days in September - Biñan, 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).

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Average daylight in September /
Average sunshine in September
Biñan, Philippines

Average daylight in September / Average sunshine in September - Biñan, Philippines
  • Average daylight in September: 12h and 13min

The month with the longest days is June (Average daylight: 12h and 58min).
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).

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Average sunshine days in September
Biñan, Philippines

Average sunshine days in September - Biñan, 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).

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Average UV index in September
Biñan, Philippines

Average UV index in September - Biñan, 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).

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Average cloud cover in September
Biñan, Philippines

Average cloud cover in September - Biñan, 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).

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Average visibility in September
Biñan, Philippines

Average visibility in September - Biñan, 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).

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