September weather forecast
Catubig, Philippines

The first month of the autumn, September, is also a hot month in Catubig, Philippines, with temperature in the range of an average high of 30.4°C (86.7°F) and an average low of 25.8°C (78.4°F).

Temperature

Catubig marks the arrival of September with an average high-temperature of a still hot 30.4°C (86.7°F), hardly different from August's 30.8°C (87.4°F). The nights of September cool down to an average low of 25.8°C (78.4°F), subtly lower than daytime highs.

Heat index

September's mean heat index is computed to be a fiery hot 39°C (102.2°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index details are generally centered around shaded locations and a mild breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Catubig, the average relative humidity in September is 79%.

Rainfall

In Catubig, in September, during 21.2 rainfall days, 142mm (5.59") of precipitation is typically accumulated. Throughout the year, there are 283 rainfall days, and 1943mm (76.5") of precipitation is accumulated.

Daylight

In September, the average length of the day in Catubig is 12h and 12min.
On the first day of September, sunrise is at 5:29 am and sunset at 5:50 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 5:30 pm PST.

Sunshine

The average sunshine in September is 8.2h.

UV index

January through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 suggests this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.