September weather forecast
Pasay, Philippines

In September, the weather begins to transition from the intense monsoon season towards a gentler almost pre-monsoon atmosphere. Consequently, it's not a surprise witnessing a decrease in rainfall levels, with 309mm (12.17") of precipitation recorded. Even though rainfall reduces, temperatures maintain their consistent tropical averages. Gradual shifts in the surrounding meteorological conditions begin to pave the way for the approaching dry season.

Temperature

September in Pasay, Philippines, registers an average high-temperature of a still hot 30.9°C (87.6°F), slightly varied from August's 30.7°C (87.3°F). During September, the nighttime temperature averages of 23.8°C (74.8°F).

Heat index

The average heat index in September is appraised at an extremely hot 42°C (107.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The most humid month is September, with an average relative humidity of 83%.

Rainfall

In Pasay, in September, during 18 rainfall days, 309mm (12.17") of precipitation is typically accumulated. Throughout the year, in Pasay, Philippines, there are 119 rainfall days, and 1823mm (71.77") of precipitation is accumulated.

Daylight

The average length of the day in September 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.