September weather forecastManis, Indonesia

Weather in September

September, the first month of the spring in Manis, is still a warm month, with an average temperature varying between 20.1°C (68.2°F) and 29.8°C (85.6°F).

Temperature

Manis, Indonesia, experiences a subtle adjustment in high-temperatures to a still warm 29.8°C (85.6°F) with the onset of September, maintaining near parity with August's 28.8°C (83.8°F). An average temperature of 20.1°C (68.2°F) is recorded during the nights in September.

Heat index

In September, the heat index is evaluated at a very hot 36°C (96.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The least humid month is September, with an average relative humidity of 76%.

Rainfall

In Manis, during September, the rain falls for 16.5 days and regularly aggregates up to 57mm (2.24") of precipitation. In Manis, during the entire year, the rain falls for 290 days and collects up to 2626mm (103.39") of precipitation.

Daylight

In Manis, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:45 and sunset at 17:44. On the last day of September, sunrise is at 05:30 and sunset at 17:39 WIB.

Sunshine

In Manis, the average sunshine in September is 8.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.