September weather forecast
Ossu, East Timor

In September, weather conditions continue to uphold the trend set by August. There is a slight increase in rainfall to 4mm (0.16") but weather parameters remain consistently stable and inviting. The region is dominated by long sunshine hours and declining cloud formations, resulting in increased daylight exposure. With temperatures remaining warm and wind conditions stable, the outdoor environment becomes highly desirable. Visibility remains at its peak, allowing locals and tourists to appreciate the scenic beauty of the region.

Temperature

Upon the beginning of September, Ossu's high-temperatures register at a still warm 29.8°C (85.6°F), closely mirroring the preceding month. An average low-temperature of 21.3°C (70.3°F) marks the nights in Ossu throughout September.

Heat index

The heat index for September is appraised at a fiery hot 35°C (95°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In September, the average relative humidity in Ossu is 72%.

Rainfall

In September, in Ossu, the rain falls for 3.7 days. Throughout September, 4mm (0.16") of precipitation is accumulated. In Ossu, East Timor, 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 18:32. On the last day of September, in Ossu, East Timor, sunrise is at 06:19 and sunset at 18:29 +09.

Sunshine

In September, the average sunshine is 9.4h.

UV index

January through March, September through December, with an average maximum UV index of 7, are months with the highest UV index in Ossu. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.