September weather forecast
Ermitaño, Philippines

September, the first month of the autumn in Ermitaño, is still a hot month, with temperature in the range of an average high of 30.5°C (86.9°F) and an average low of 24.7°C (76.5°F).

Temperature

Ermitaño's average high-temperature in September sits at a still tropical 30.5°C (86.9°F), showing little difference from the previous month. The mean low-temperature during September nights in Ermitaño, Philippines, is a moderately hot 24.7°C (76.5°F).

Heat index

In September, the heat index is estimated at an extremely hot 40°C (104°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the highest humidity in Ermitaño are August and September, with an average relative humidity of 81%.

Rainfall

In Ermitaño, Philippines, during September, the rain falls for 19.5 days and regularly aggregates up to 51mm (2.01") of precipitation. Throughout the year, there are 154.1 rainfall days, and 342mm (13.46") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September in Ermitaño, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

The average sunshine in September is 8.3h.

UV index

The months with the highest UV index in Ermitaño are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. Boost your sun resistance with garments that are densely woven yet spacious.