September weather forecastDumaran, Philippines

Weather in September

The first month of the autumn, September, is still a warm month in Dumaran, Philippines, with an average temperature fluctuating between 29.1°C (84.4°F) and 26.9°C (80.4°F).

Temperature

Dumaran marks the start of September with an average high-temperature of a still moderately hot 29.1°C (84.4°F), hinting at a slight fluctuation from August's 29.6°C (85.3°F). Dumaran registers an average low-temperature of 26.9°C (80.4°F) throughout September, a modest decrease from its daytime highs.

Heat index

For September, the heat index is appraised at a fiery hot 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The most humid month is September, with an average relative humidity of 79%.

Rainfall

In Dumaran, Philippines, in September, it is raining for 26.9 days, with typically 160mm (6.3") of accumulated precipitation. In Dumaran, during the entire year, the rain falls for 259.3 days and collects up to 1372mm (54.02") of precipitation.

Sea temperature

In Dumaran, Philippines, in September, the average water temperature is 28.7°C (83.7°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September in Dumaran, sunrise is at 5:51 am and sunset at 6:10 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 5:52 pm PST.

Sunshine

In Dumaran, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index are January through June, August through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take note! Sand and water reflections strengthen the Sun's UV exposure.