September weather forecast
Marikina Heights, Philippines

The first month of the autumn, September, is still a tropical month in Marikina Heights, Philippines, with an average temperature ranging between min 24.8°C (76.6°F) and max 30.4°C (86.7°F).

Temperature

Marikina Heights's weather in September indicates an average high-temperature of a still tropical 30.4°C (86.7°F), nearly consistent with the 30.2°C (86.4°F) of August. In Marikina Heights, the average temperature during the nights of September drops to a warm 24.8°C (76.6°F).

Heat index

For September, the heat index is estimated at a very hot 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the highest humidity in Marikina Heights are July through September, with an average relative humidity of 81%.

Rainfall

In September, in Marikina Heights, Philippines, the rain falls for 22.3 days. Throughout September, 122mm (4.8") of precipitation is accumulated. Throughout the year, there are 203.1 rainfall days, and 842mm (33.15") 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 6:07 pm. On the last day of September, in Marikina Heights, sunrise is at 5:45 am and sunset at 5:45 pm PST.

Sunshine

In Marikina Heights, Philippines, the average sunshine in September is 8.4h.

UV index

February through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. 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 days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.