September weather forecast
Sorong, Indonesia

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Weather in September

September weather brings with it a slight increase in temperature, with peaks observed at 29.1°C (84.4°F). In this month, Sorong sees relatively less rainfall, recording a quantity of 102mm (4.02"). This decline in rainfall along with stable temperatures contributes to a slightly drier atmosphere compared to August. Regardless, the diversity in weather conditions continues to showcase Sorong's dynamic tropical character.

Temperature

The introduction of September notes a subtle temperature variation to a still warm 29.1°C (84.4°F) from August's 28.8°C (83.8°F). In the month of September, an average of 24°C (75.2°F) marks the low-temperature.

Heat index

September's mean heat index is calculated to be a very hot 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 83%.

Rainfall

The month with the least rainfall in Sorong is September, when the rain falls for 23.7 days and typically collects 102mm (4.02") of precipitation.

Sea temperature

In September, the average sea temperature in Sorong is 28.4°C (83.1°F).
Note: Between 25°C (77°F) and 29°C (84.2°F), water temperature is typically considered very warm and pleasurable by everyone. Water activities at these temperatures are enjoyable for extended periods without discomfort.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 06:11 and sunset at 18:17. On the last day of September, sunrise is at 06:01 and sunset at 18:08 WIT.

Sunshine

In Sorong, the average sunshine in September is 7.1h.

UV index

The months with the highest UV index are January through July, September and October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Attention! The reflection of both water and sand can increase the intensity of UV rays.

Frequently asked questions

How hot is September in Sorong?

In September, the average high-temperature and low-temperature are 29.1°C (84.4°F) and 24°C (75.2°F) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 36°C (96.8°F).

What is the average humidity in September?

The average relative humidity in September is 83%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 23.7 days and typically collects 102mm (4.02") of precipitation.

How many days does it rain in September?

In Sorong, during September, the rain falls for 23.7 days and regularly aggregates up to 102mm (4.02") of precipitation.

What is the sea water temperature in September?

In Sorong, in September, the average water temperature is 28.4°C (83.1°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 06:11 and sunset at 18:17. On the last day of the month, sunrise is at 06:01 and sunset at 18:08 WIT.

How many hours of sunshine does Sorong have in September?

In September, the average sunshine duration is 7.1h.

When is the highest UV index?

The months with the highest UV index in Sorong are January through July, September and October, with an average maximum UV index of 7.

What is the UV index reading in September?

In Sorong, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Sorong, Indonesia

Average temperature in September - Sorong, Indonesia
  • Average high temperature in September: 29.1°C

The warmest month (with the highest average high temperature) is November (30.5°C).
The month with the lowest average high temperature is August (28.8°C).

  • Average low temperature in September: 24°C

The months with the highest average low temperature are January, February, March, November and December (25.3°C).
The coldest month (with the lowest average low temperature) is September (24°C).

Average pressure in September
Sorong, Indonesia

Average pressure in September - Sorong, Indonesia
  • Average pressure in September: 1010.1mbar

The months with the highest atmospheric pressure are August and September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).

Average wind speed in September
Sorong, Indonesia

Average wind speed in September - Sorong, Indonesia
  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is August (10.5km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).

Average humidity in September
Sorong, Indonesia

Average humidity in September - Sorong, Indonesia
  • Average humidity in September: 83%

The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and February (79%).

Average rainfall in September
Sorong, Indonesia

Average rainfall in September - Sorong, Indonesia
  • Average rainfall in September: 102mm

The wettest month (with the highest rainfall) is December (186mm).
The driest month (with the least rainfall) is September (102mm).

Average rainfall days in September
Sorong, Indonesia

Average rainfall days in September - Sorong, Indonesia
  • Average rainfall days in September: 23.7 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is October (22.6 days).

Average sea temperature in September
Sorong, Indonesia

Average sea temperature in September - Sorong, Indonesia
  • Average sea temperature in September: 28.4°C

The best month for swimming (with the highest average sea temperature) is April (29.4°C).
The coldest month (with the lowest average sea temperature) is August (28.3°C).

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

Average daylight in September / Average sunshine in September - Sorong, Indonesia
  • Average daylight in September: 12h and 1min

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: 7h and 1min

The month with the most sunshine is November (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).

Average sunshine days in September
Sorong, Indonesia

Average sunshine days in September - Sorong, Indonesia
  • Average sunshine days in September: 4.1 days

The month with the most sunshine days is July (6.9 days).
The month with the least sunshine days is December (1.1 days).

Average UV index in September
Sorong, Indonesia

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

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

Average cloud cover in September
Sorong, Indonesia

Average cloud cover in September - Sorong, Indonesia
  • Average cloud cover in September: 52

The months with the most cloud cover are July and August (Cloud cover 57).
The month with the least cloud cover is November (Cloud cover 41).

Average visibility in September
Sorong, Indonesia

Average visibility in September - Sorong, Indonesia
  • Average visibility in September: 9km

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

Sorong, Indonesia

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