September weather forecastCulianin, Philippines

Weather in September

September, the first month of the autumn in Culianin, is still a tropical month, with an average temperature fluctuating between 23.4°C (74.1°F) and 30.4°C (86.7°F).

Temperature

The advent of September presents an average high-temperature of a still tropical 30.4°C (86.7°F), maintaining a close correlation with the preceding month. An average low-temperature of 23.4°C (74.1°F) is noted during the month of September.

Heat index

The heat index value for September is evaluated at a blistering 41°C (105.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. 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. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The most humid month is September, with an average relative humidity of 86%.

Rainfall

In Culianin, in September, during 25.9 rainfall days, 157mm (6.18") of precipitation is typically accumulated. In Culianin, during the entire year, the rain falls for 226.4 days and collects up to 1001mm (39.41") of precipitation.

Daylight

In Culianin, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 5:44 am and sunset at 6:08 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 7.9h.

UV index

The months with the highest UV index are February through June, August through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.