September weather forecast
Rizal, Philippines

The first month of the autumn, September, is also a moderately hot month in Rizal, Philippines, with an average temperature varying between 29.5°C (85.1°F) and 23.1°C (73.6°F).

Temperature

Rizal's September showcases an average high-temperature of a still warm 29.5°C (85.1°F), hardly distinct from August's 29.4°C (84.9°F). An average minimum temperature of 23.1°C (73.6°F) is recorded in Rizal, Philippines, during the month of September.

Heat index

For September, the heat index is computed to be a fiery hot 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

July and September, with an average relative humidity of 88%, are the most humid months.

Rainfall

In September, in Rizal, the rain falls for 27.4 days. Throughout September, 223mm (8.78") of precipitation is accumulated. Throughout the year, there are 313.5 rainfall days, and 1700mm (66.93") of precipitation is accumulated.

Daylight

In September, the average length of the day in Rizal is 12h and 13min.
On the first day of the month, sunrise is at 5:42 am and sunset at 6:06 pm. On the last day of September, in Rizal, sunrise is at 5:44 am and sunset at 5:45 pm PST.

Sunshine

In September, the average sunshine in Rizal is 7.6h.

UV index

March through May, August and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.