September weather forecastMariveles, Philippines

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mariveles, Philippines, with an average temperature fluctuating between 29.1°C (84.4°F) and 25.5°C (77.9°F).

Temperature

September's commencement is accompanied by an average high-temperature of a still warm 29.1°C (84.4°F), diverging marginally from August's 28.8°C (83.8°F). In Mariveles, a slight decrease from the daytime peak is noted during the month of September, with an average low-temperature of 25.5°C (77.9°F).

Heat index

September's heat index is estimated at a fiery hot 36°C (96.8°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

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

Rainfall

In Mariveles, Philippines, during September, the rain falls for 26.8 days and regularly aggregates up to 206mm (8.11") of precipitation. In Mariveles, during the entire year, the rain falls for 206.5 days and collects up to 1288mm (50.71") of precipitation.

Sea temperature

In Mariveles, the average seawater temperature in September is 28.4°C (83.1°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 5:46 am and sunset at 6:10 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 5:48 pm PST.

Sunshine

In September, the average sunshine is 7.7h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 during September leads to these advisories:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Warning! The Sun's UV rays intensify with reflections from sand and water.