September weather forecast and climate
Tarakan, Indonesia

Weather in September

The first month of the autumn, September, is still a tropical month in Tarakan, Indonesia, with average temperature varying between 25.9°C (78.6°F) and 30.3°C (86.5°F).

Temperature

In Tarakan, Indonesia, the average high-temperature in September remains equal as in August - a still tropical 30.3°C (86.5°F). In Tarakan, Indonesia, in September, the average low-temperature is 25.9°C (78.6°F).

Heat index

In September, the average heat index is evaluated at a sweltering 37.4°C (99.3°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

September and October, with an average relative humidity of 76%, are the least humid months.

Rainfall

The month with the least rainfall is September when the rain falls for 26.5 days and typically collects 136mm (5.35") of precipitation.

Sea temperature

In Tarakan, the average seawater temperature is 29°C (84.2°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In September, the average length of the day is 12.1h.

Sunshine

In Tarakan, the average sunshine is 9.8h.

UV index

Months with the highest UV index are January through December, with an average maximum UV index of 7. Months with the lowest UV index in Tarakan are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the temperature in September in Tarakan?

In September, in Tarakan, Indonesia, the average high-temperature is 30.3°C (86.5°F), and the average low-temperature is 25.9°C (78.6°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 37.4°C (99.3°F).

What is the least humid month in Tarakan?

Months with the lowest humidity in Tarakan, Indonesia, are September and October, with an average relative humidity of 76%.

What is the average humidity in September in Tarakan?

In Tarakan, the average relative humidity in September is 76%.

What is the driest month in Tarakan?

September is the month with the least rainfall in Tarakan. Rain falls for 26.5 days and accumulates 136mm (5.35") of precipitation.

How many days does it rain in September in Tarakan?

In Tarakan, Indonesia, in September, it is raining for 26.5 days, with typically 136mm (5.35") of accumulated precipitation.

What is the sea water temperature in September in Tarakan?

In Tarakan, Indonesia, the average seawater temperature in September is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Tarakan?

In September, the average length of the day is 12.1h.

How long on average sun shines in September in Tarakan?

In Tarakan, the average sunshine in September is 9.8h.

What are the months with the highest UV index in Tarakan?

Months with the highest UV index in Tarakan, Indonesia, are January through December, with an average maximum UV index of 7.

When is the lowest UV index in Tarakan?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Tarakan.

What is the UV index intensity in September in Tarakan?

In September, the average daily maximum UV index in Tarakan, Indonesia, is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Tarakan, Indonesia

Average temperature in September - Tarakan, Indonesia
  • Average high temperature in September: 30.3°C

The warmest month (with the highest average high temperature) is May (30.7°C).
The month with the lowest average high temperature is January (29.1°C).

  • Average low temperature in September: 25.9°C

The month with the highest average low temperature is May (26.5°C).
The coldest month (with the lowest average low temperature) is February (25.2°C).

[Resources]

Average pressure in September
Tarakan, Indonesia

Average pressure in September - Tarakan, Indonesia
  • Average pressure in September: 1009.8mbar

The month with the highest atmospheric pressure is February (1010.5mbar).
Months with the lowest atmospheric pressure are November and December (1009mbar).

[Resources]

Average wind speed in September
Tarakan, Indonesia

Average wind speed in September - Tarakan, Indonesia
  • Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).

[Resources]

Average humidity in September
Tarakan, Indonesia

Average humidity in September - Tarakan, Indonesia
  • Average humidity in September: 76%

The month with the highest relative humidity is January (79%).
Months with the lowest relative humidity are September and October (76%).

[Resources]

Average rainfall in September
Tarakan, Indonesia

Average rainfall in September - Tarakan, Indonesia
  • Average rainfall in September: 136mm

The wettest month (with the highest rainfall) is December (253mm).
The driest month (with the least rainfall) is September (136mm).

[Resources]

Average rainfall days in September
Tarakan, Indonesia

Average rainfall days in September - Tarakan, Indonesia
  • Average rainfall days in September: 26.5 days

The month with the highest number of rainy days is January (30 days).
The month with the least rainy days is June (22.8 days).

[Resources]

Average sea temperature in September
Tarakan, Indonesia

Average sea temperature in September - Tarakan, Indonesia
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are April, May and June (30°C).
The coldest months (with the lowest average sea temperature) are January and February (28°C).

[Resources]

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

Average daylight in September / Average sunshine in September - Tarakan, Indonesia
  • Average daylight in September: 12.1h

Months with the longest days are May, June and July (Average daylight: 12.3h).
The month with the shortest days is December (Average daylight: 11.9h).

  • Average sunshine in September: 9.8h

The month with the most sunshine is May (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 7.8h).

[Resources]

Average sunshine days in September
Tarakan, Indonesia

Average sunshine days in September - Tarakan, Indonesia
  • Average sunshine days in September: 3.4 days

The month with the most sunshine days is June (6.8 days).
The month with the least sunshine days is January (0.5 days).

[Resources]

Average UV index in September
Tarakan, Indonesia

Average UV index in September - Tarakan, Indonesia
  • Average UV index in September: 7

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

[Resources]

Average cloud cover in September
Tarakan, Indonesia

Average cloud cover in September - Tarakan, Indonesia
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 34).

[Resources]

Average visibility in September
Tarakan, Indonesia

Average visibility in September - Tarakan, Indonesia
  • Average visibility in September: 10km

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location