September weather forecast
Mandaluyong, Philippines

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Weather in September

September brings a gradual decline in rainfall to 113mm (4.45") and an eased relative humidity of 80% in Mandaluyong. Despite a reduced amount of rainfall, the number of rainy days remains high. The weather begins to dry out towards the end of the month, giving a taste of the upcoming dry season. It's a month of transition with rainfall, sea temperatures and daily lows continuing to drop as the city cruises into October.

Temperature

August's transformation into September witnesses an average high-temperature of a still hot 30.5°C (86.9°F) in Mandaluyong, noting a minor change from the preceding month. In Mandaluyong, September's nights observe an average temperature dip to a warm 25.1°C (77.2°F).

Heat index

During September, the heat index is estimated at a very hot 39°C (102.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

July through September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Mandaluyong, in September, during 20.5 rainfall days, 113mm (4.45") of precipitation is typically accumulated. In Mandaluyong, during the entire year, the rain falls for 171.4 days and collects up to 715mm (28.15") of precipitation.

Sea temperature

In Mandaluyong, Philippines, the average seawater temperature in September is 28.8°C (83.8°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In September, the average length of the day in Mandaluyong 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, in Mandaluyong, Philippines, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

The average sunshine in September in Mandaluyong is 8.3h.

UV index

February through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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Frequently asked questions

How hot is it in Mandaluyong in September?

The average high-temperature and low-temperature in Mandaluyong, Philippines, during September are 30.5°C (86.9°F) and 25.1°C (77.2°F) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 39°C (102.2°F).

What is the most humid month in Mandaluyong?

July through September, with an average relative humidity of 80%, are most humid months in Mandaluyong, Philippines.

What is the average humidity in September in Mandaluyong?

In September, the average relative humidity in Mandaluyong, Philippines, is 80%.

How many days does it rain in September in Mandaluyong?

In September, in Mandaluyong, the rain falls for 20.5 days. Throughout September, 113mm (4.45") of precipitation is accumulated.

How warm is the water in September in Mandaluyong?

In September, the average sea temperature in Mandaluyong, Philippines, is 28.8°C (83.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Mandaluyong?

The average day length in September in Mandaluyong, Philippines, is 12h and 13min.

When are sunrise and sunset in September in Mandaluyong?

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 Mandaluyong, sunrise is at 5:45 am and sunset at 5:46 pm PST.

How many hours of sunshine does Mandaluyong have in September?

In Mandaluyong, the average sunshine duration in September is 8.3h.

When is the highest UV index in Mandaluyong?

February through November, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in September in Mandaluyong?

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

Average temperature in September
Mandaluyong, Philippines

Average temperature in September - Mandaluyong, Philippines
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is May (33.3°C).
The month with the lowest average high temperature is January (28.2°C).

  • Average low temperature in September: 25.1°C

The month with the highest average low temperature is May (26.4°C).
The coldest months (with the lowest average low temperature) are January and February (23.2°C).

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Average pressure in September
Mandaluyong, Philippines

Average pressure in September - Mandaluyong, Philippines
  • Average pressure in September: 1008.2mbar

The month with the highest atmospheric pressure is February (1013.3mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).

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Average wind speed in September
Mandaluyong, Philippines

Average wind speed in September - Mandaluyong, Philippines
  • Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is January (12.1km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).

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Average humidity in September
Mandaluyong, Philippines

Average humidity in September - Mandaluyong, Philippines
  • Average humidity in September: 80%

The months with the highest relative humidity are July, August and September (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Mandaluyong, Philippines

Average rainfall in September - Mandaluyong, Philippines
  • Average rainfall in September: 113mm

The wettest month (with the highest rainfall) is August (143mm).
The driest month (with the least rainfall) is February (9mm).

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Average rainfall days in September
Mandaluyong, Philippines

Average rainfall days in September - Mandaluyong, Philippines
  • Average rainfall days in September: 20.5 days

The month with the highest number of rainy days is July (23.5 days).
The month with the least rainy days is February (5.9 days).

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Average sea temperature in September
Mandaluyong, Philippines

Average sea temperature in September - Mandaluyong, 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 (26.7°C).

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

Average daylight in September / Average sunshine in September - Mandaluyong, Philippines
  • Average daylight in September: 12h and 1min

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 2min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

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Average sunshine days in September
Mandaluyong, Philippines

Average sunshine days in September - Mandaluyong, Philippines
  • Average sunshine days in September: 8.1 days

The month with the most sunshine days is April (18.8 days).
The month with the least sunshine days is July (5.9 days).

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Average UV index in September
Mandaluyong, Philippines

Average UV index in September - Mandaluyong, Philippines
  • Average UV index in September: 7

The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).

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Average cloud cover in September
Mandaluyong, Philippines

Average cloud cover in September - Mandaluyong, Philippines
  • Average cloud cover in September: 44

The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is April (Cloud cover 25).

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Average visibility in September
Mandaluyong, Philippines

Average visibility in September - Mandaluyong, Philippines
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).

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Mandaluyong, Philippines

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