September weather forecast
Vemasse, East Timor

As one moves into September, the weather conditions continue to stay dry in Vemasse, with the average rainfall only rising slightly to 4mm (0.16"). Sunlight hours remain fairly constant from August, granting plenty of daylight for outdoor activities. The wind speed slightly drops, causing slightly warmer perceived temperatures. Humidity remains low, and as a consequence, the overall weather is fairly pleasant. As the sun begins to set later, there's a sense of prolonged summer.

Temperature

September's onset records a minor alteration in the average high-temperature to a still moderately hot 29.8°C (85.6°F) from August's 28°C (82.4°F). The average temperature in Vemasse drops to a pleasant 21.3°C (70.3°F) during the night in the month of September.

Heat index

Throughout September, the heat index is evaluated at a torrid 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in September is 72%.

Rainfall

In Vemasse, in September, during 3.7 rainfall days, 4mm (0.16") of precipitation is typically accumulated. In Vemasse, during the entire year, the rain falls for 157.3 days and collects up to 660mm (25.98") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 06:36 and sunset at 18:33. On the last day of September, sunrise is at 06:19 and sunset at 18:30 +09.

Sunshine

In Vemasse, the average sunshine in September is 9.4h.

UV index

The months with the highest UV index in Vemasse are January through March, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.