September weather forecast
Alua, Philippines

The first month of the autumn, September, is also a hot month in Alua, Philippines, with an average temperature varying between 30.5°C (86.9°F) and 23°C (73.4°F).

Temperature

Transitioning from August to September, Alua observes an average high-temperature of a still tropical 30.5°C (86.9°F), differing subtly from the previous month. Alua's nighttime temperature in September drops to an average of 23°C (73.4°F).

Heat index

September's average heat index is estimated at a scorching 41°C (105.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 86%.

Rainfall

In Alua, in September, it is raining for 26.8 days, with typically 228mm (8.98") of accumulated precipitation. In Alua, Philippines, during the entire year, the rain falls for 223 days and collects up to 1321mm (52.01") of precipitation.

Daylight

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

Sunshine

The average sunshine in September in Alua is 8.4h.

UV index

February through June, August 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 hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 in September translates into these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.