September weather forecastSamarinda, Indonesia

September

Weather in September

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.

Frequently asked questions

In September, the average high-temperature and low-temperature are 32.1°C (89.8°F) and 23.9°C (75°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 43°C (109.4°F).

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

The average relative humidity in September in Samarinda, Indonesia, is 77%.

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

In September, in Samarinda, Indonesia, the rain falls for 21.5 days. Throughout September, 57mm (2.24") of precipitation is accumulated.

In Samarinda, the average day length in September is 12h and 7min.

In September, on the first day of the month, sunrise is at 06:08 and sunset at 18:14. On the last day of the month, in Samarinda, sunrise is at 05:57 and sunset at 18:04 WITA.

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

In September, the average sunshine duration in Samarinda, Indonesia, is 9.2h.

The months with the highest UV index are January, February, April through December, with an average maximum UV index of 7.

In Samarinda, Indonesia, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Samarinda, Indonesia

  • Average high temperature in September: 32.1°C

The warmest month (with the highest average high temperature) is October (32.6°C).
The months with the lowest average high temperature are January and July (30.9°C).

  • Average low temperature in September: 23.9°C

The month with the highest average low temperature is November (24.4°C).
The coldest month (with the lowest average low temperature) is July (23.7°C).

Average pressure in September
Samarinda, Indonesia

  • Average pressure in September: 1009.7mbar

The months with the highest atmospheric pressure are August and September (1009.7mbar).
The months with the lowest atmospheric pressure are November and December (1008.4mbar).

Average wind speed in September
Samarinda, Indonesia

  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is August (7.2km/h).
The calmest months (with the lowest average wind speed) are April and November (4.5km/h).

Average humidity in September
Samarinda, Indonesia

  • Average humidity in September: 77%

The months with the highest relative humidity are January, April, June and December (83%).
The month with the lowest relative humidity is September (77%).

Average rainfall in September
Samarinda, Indonesia

  • Average rainfall in September: 57mm

The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is September (57mm).

Average rainfall days in September
Samarinda, Indonesia

  • Average rainfall days in September: 21.5 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is September (21.5 days).

Average daylight in September /
Average sunshine in September
Samarinda, Indonesia

  • Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).

  • Average sunshine in September: 9h and 12min

The months with the most sunshine are September and October (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in September
Samarinda, Indonesia

  • Average sunshine days in September: 5.7 days

The month with the most sunshine days is September (5.7 days).
The month with the least sunshine days is December (1.8 days).

Average UV index in September
Samarinda, Indonesia

  • Average UV index in September: 7

The months with the highest UV index are January, February, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is March (UV index 6).

Average cloud cover in September
Samarinda, Indonesia

  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in September
Samarinda, Indonesia

  • Average visibility in September: 10km

The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).