September weather forecastMarilao, Philippines

Weather in September

September, the first month of the autumn in Marilao, is still a tropical month, with temperature in the range of an average low of 24.3°C (75.7°F) and an average high of 30.5°C (86.9°F).

Temperature

The transition into September marks the average high-temperature at a still hot 30.5°C (86.9°F), differing minimally from August's 30.3°C (86.5°F). Marilao experiences a mean low-temperature of 24.3°C (75.7°F) during September.

Heat index

The average heat index in September is calculated to be a scorching 40°C (104°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 83%.

Rainfall

In Marilao, in September, it is raining for 28.1 days, with typically 252mm (9.92") of accumulated precipitation. Throughout the year, in Marilao, there are 245.4 rainfall days, and 1578mm (62.13") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:08 pm. On the last day of September, in Marilao, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

The average sunshine in September in Marilao is 8.1h.

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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the UV index of 7 transforms into the following advice:
Ward off overexposure. Defence against solar harm is crucial. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.