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

The start of September sees the average high-temperature at a still warm 29.8°C (85.6°F), showing little difference from August's 28°C (82.4°F). The low-temperature averages to an agreeable 21.3°C (70.3°F) during the nights of September.

Heat index

In September, the heat index is calculated to be a sweltering 35°C (95°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

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. Throughout the year, in Vemasse, there are 157.3 rainfall days, and 660mm (25.98") of precipitation is accumulated.

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

The average sunshine in September is 9.4h.

UV index

The months with the highest UV index are January through March, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.