September weather forecast
Samarinda, Indonesia

Samarinda in September witnesses the highest recorded temperature for the year, with the range stretching from 23.9°C (75°F) to 32.1°C (89.8°F). While the temperatures illustrate a degree of fluctuation, the overall weather pattern preserves the traditional tropical rainforest climate structure. Rainfall, daylight hours, and UV index remain stable, mirroring the familiar climate characteristics. With prevailing high humidity and unchanging atmospheric pressure, the essence of September's weather in Samarinda continues the tropical tradition.

Temperature

The onset of September in Samarinda brings with it an average high-temperature of a still hot 32.1°C (89.8°F), showing a negligible variation from the month before. In Samarinda, September nights witness a steady temperature drop to a warm 23.9°C (75°F).

Heat index

The average heat index in September is estimated at an extremely hot 43°C (109.4°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

September is the least humid month in Samarinda, Indonesia, with an average relative humidity of 77%.

Rainfall

September is the month with the least rainfall in Samarinda, Indonesia. Rain falls for 21.5 days and accumulates 57mm (2.24") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:08 and sunset at 18:14. On the last day of September, in Samarinda, sunrise is at 05:57 and sunset at 18:04 WITA.

Sunshine

The months with the most sunshine are September and October, with an average of 9.2h of sunshine.

UV index

January, February, April through December, with an average maximum UV index of 7, are months with the highest UV index in Samarinda. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.