September weather forecast
Casambalangan, Philippines

The first month of the autumn, September, is also a moderately hot month in Casambalangan, Philippines, with an average temperature ranging between min 25.5°C (77.9°F) and max 29.9°C (85.8°F).

Temperature

September reports an average high-temperature of a warm 29.9°C (85.8°F), slightly varied from August's 30.6°C (87.1°F). Casambalangan sustains a near constant temperature throughout September, with nighttime averages of 25.5°C (77.9°F).

Heat index

For most parts of September, the heat index is calculated to be a torrid 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index determinations are made taking into account the shade and light air movements. 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 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In Casambalangan, Philippines, in September, it is raining for 24.9 days, with typically 182mm (7.17") of accumulated precipitation. Throughout the year, there are 284.5 rainfall days, and 1949mm (76.73") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 29.3°C (84.7°F).
Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

In Casambalangan, the average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 5:36 am and sunset at 6:05 pm. On the last day of September, sunrise is at 5:41 am and sunset at 5:41 pm PST.

Sunshine

The average sunshine in September is 9.3h.

UV index

The months with the highest UV index in Casambalangan are March through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 7 in September transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.