September weather forecast
Rangkah, Indonesia

The first month of the spring, September, is still a tropical month in Rangkah, Indonesia, with temperature in the range of an average low of 22.4°C (72.3°F) and an average high of 33.6°C (92.5°F).

Temperature

The advent of September brings an average high-temperature of a still tropical 33.6°C (92.5°F), exhibiting minor difference from the previous month. Rangkah, during the nights of September, experiences an average temperature drop to an agreeable 22.4°C (72.3°F).

Heat index

September's average heat index is evaluated at a blistering 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 62%.

Rainfall

In September, the rain falls for 5.2 days. Throughout September, 12mm (0.47") of precipitation is accumulated. In Rangkah, during the entire year, the rain falls for 218.1 days and collects up to 1410mm (55.51") 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 05:29 and sunset at 17:28. On the last day of September, sunrise is at 05:13 and sunset at 17:23 WIB.

Sunshine

August through October, with an average of 9.7h of sunshine, are months with the most sunshine in Rangkah.

UV index

February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.