September weather forecast
Dumangas, Philippines

The first month of the autumn, September, is also a moderately hot month in Dumangas, Philippines, with an average temperature varying between 24.9°C (76.8°F) and 29.3°C (84.7°F).

Temperature

Dumangas in September witnesses an average high-temperature of a still warm 29.3°C (84.7°F), indicating a slight variation from August's 29.6°C (85.3°F). The temperature in Dumangas, Philippines, during September experiences a small drop from daytime peaks, recording an average of 24.9°C (76.8°F) at night.

Heat index

The heat index in September is calculated to be a very hot 36°C (96.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In September, in Dumangas, the rain falls for 23.4 days. Throughout September, 105mm (4.13") of precipitation is accumulated. Throughout the year, there are 250 rainfall days, and 1100mm (43.31") of precipitation is accumulated.

Sea temperature

In Dumangas, in September, the average water temperature is 28.9°C (84°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September in Dumangas, sunrise is at 5:39 am and sunset at 5:58 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 5:40 pm PST.

Sunshine

In September, the average sunshine in Dumangas is 8.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Dumangas are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Alert! UV radiation becomes sharper due to reflections from sand and water.