September weather forecast
Basey, Philippines

The first month of the autumn, September, is still a hot month in Basey, Philippines, with temperature in the range of an average low of 23.6°C (74.5°F) and an average high of 30.7°C (87.3°F).

Temperature

Basey's average high-temperature in September sits at a still hot 30.7°C (87.3°F), showing little difference from the previous month. Basey's nighttime temperature during September is consistently averaged at a moderately hot 23.6°C (74.5°F).

Heat index

September's heat index is appraised at a scorching 41°C (105.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Basey, in September, during 18.1 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Basey, during the entire year, the rain falls for 241.3 days and collects up to 855mm (33.66") of precipitation.

Sea temperature

In Basey, the average seawater temperature in September is 29.3°C (84.7°F).
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.

Daylight

The average length of the day in September in Basey, Philippines, is 12h and 11min.
On the first day of September, sunrise is at 5:29 am and sunset at 5:49 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 5:30 pm PST.

Sunshine

In Basey, the average sunshine in September is 8.2h.

UV index

The months with the highest UV index in Basey, Philippines, are April through November, with an average maximum UV index of 7. A UV Index reading 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:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Warning! The reflection of sand and water increases the UV dose.