September weather forecast
Osiao, Philippines

September, the first month of the autumn in Osiao, is also a moderately hot month, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.6°C (78.1°F).

Temperature

September commences with an average high-temperature of a still moderately hot 29.5°C (85.1°F), showing little deviation from August's 29.8°C (85.6°F). Osiao marks an average drop to a still warm 25.6°C (78.1°F) during nighttime in September, following the high of the day.

Heat index

In September, the heat index is estimated at a fiery hot 36°C (96.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for 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.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Osiao, the average relative humidity in September is 80%.

Rainfall

In September, in Osiao, Philippines, the rain falls for 17.1 days. Throughout September, 74mm (2.91") of precipitation is accumulated. In Osiao, during the entire year, the rain falls for 266.9 days and collects up to 1679mm (66.1") of precipitation.

Sea temperature

In September, the average sea temperature is 29.1°C (84.4°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

The average length of the day in September in Osiao is 12h and 12min.
On the first day of the month, sunrise is at 5:32 am and sunset at 5:55 pm. On the last day of September, in Osiao, sunrise is at 5:33 am and sunset at 5:34 pm PST.

Sunshine

In September, the average sunshine in Osiao is 7.5h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Watch out! Sand and water enhance the UV exposure you receive.