September weather forecast
Caloocan, Philippines

September spells a minor retreat from the extreme weather conditions of August while transitioning into more temperate patterns. With the gradual decrease in rainfall to 58mm (2.28"), the city starts to reprieve from the constant showers. Sunshine begins to peek more through the cloud cover, and the winds slow down, hinting at the arrival of a drier season in the upcoming months. Despite a slight decrease in temperature, the humidity remains high, providing a consistent backdrop to the mild and gradually stabilizing climatic conditions of Caloocan.

Temperature

Caloocan records an average high-temperature of a still tropical 30.7°C (87.3°F) in September, maintaining a close correlation with August's 30.3°C (86.5°F). Caloocan's average low-temperature in September is measured at a warm 25°C (77°F).

Heat index

During September, the heat index is appraised at a blistering 40°C (104°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. 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

The average relative humidity in September in Caloocan is 80%.

Rainfall

In Caloocan, Philippines, in September, during 20.3 rainfall days, 58mm (2.28") of precipitation is typically accumulated. Throughout the year, there are 154.9 rainfall days, and 349mm (13.74") of precipitation is accumulated.

Daylight

In September, the average length of the day 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, in Caloocan, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

In Caloocan, Philippines, the average sunshine in September is 8.3h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index in Caloocan. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 in September translates into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.