September weather forecast
Natatas, Philippines

September, the first month of the autumn in Natatas, is still a warm month, with temperature in the range of an average high of 29.6°C (85.3°F) and an average low of 23.4°C (74.1°F).

Temperature

The shift from August to September is characterized by an average high-temperature of a still moderately hot 29.6°C (85.3°F), not significantly different from the 29.8°C (85.6°F) of August. Natatas, during the month of September, experiences an average low-temperature of 23.4°C (74.1°F).

Heat index

For September, the heat index is calculated to be a sweltering 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

July and September, with an average relative humidity of 87%, are the most humid months.

Rainfall

In Natatas, in September, it is raining for 25.3 days, with typically 214mm (8.43") of accumulated precipitation. In Natatas, during the entire year, the rain falls for 240.5 days and collects up to 1415mm (55.71") of precipitation.

Daylight

In Natatas, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of September, sunrise is at 5:44 am and sunset at 5:45 pm PST.

Sunshine

The average sunshine in September is 7.4h.

UV index

The months with the highest UV index are February through June and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.