September weather forecastCiaul, Indonesia

Weather in September

The first month of the spring, September, is still a tropical month in Ciaul, Indonesia, with an average temperature ranging between min 23.5°C (74.3°F) and max 31.6°C (88.9°F).

Temperature

Ciaul sees the arrival of September with an average high-temperature of a still hot 31.6°C (88.9°F), indicating a subtle variation from August. Throughout September, an average low-temperature of 23.5°C (74.3°F) is expected.

Heat index

For September, the heat index is calculated to be an extremely hot 40°C (104°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

September and October, with an average relative humidity of 71%, are the least humid months.

Rainfall

In Ciaul, in September, during 16 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, in Ciaul, there are 291.3 rainfall days, and 1460mm (57.48") 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 05:55 and sunset at 17:55. On the last day of September, sunrise is at 05:40 and sunset at 17:50 WIB.

Sunshine

September has the most sunshine of the year, with an average of 9.3h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.