September weather forecastDumalneg, Philippines

Weather in September

The first month of the autumn, September, is still a warm month in Dumalneg, Philippines, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.2°C (77.4°F).

Temperature

The arrival of September coincides with an average high-temperature of a still moderately hot 29.5°C (85.1°F), indicating a minimal shift from August's 29.4°C (84.9°F). The nights of September in Dumalneg cool down to an average low of 25.2°C (77.4°F), subtly lower than daytime highs.

Heat index

For most parts of September, the heat index is calculated to be a sweltering 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

July through September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Dumalneg, Philippines, in September, during 20.7 rainfall days, 149mm (5.87") of precipitation is typically accumulated. Throughout the year, there are 166.7 rainfall days, and 968mm (38.11") of precipitation is accumulated.

Daylight

In Dumalneg, the average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 5:42 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 5:46 pm PST.

Sunshine

The average sunshine in September is 9.5h.

UV index

The months with the highest UV index are February through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.