September weather forecast
Balongdowo, Indonesia

September

Weather in September

The first month of the spring, September, is still a hot month in Balongdowo, Indonesia, with an average temperature ranging between min 23.1°C (73.6°F) and max 33.9°C (93°F).

Temperature

Balongdowo experiences an average high-temperature of a still hot 33.9°C (93°F) in September, marking an insignificant shift from 32.3°C (90.1°F) in August. In Balongdowo, September is marked by an average low-temperature of 23.1°C (73.6°F).

Heat index

The heat index for September is estimated at a blistering 44°C (111.2°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The least humid month is September, with an average relative humidity of 65%.

Rainfall

In September, the rain falls for 9.3 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 233 rainfall days, and 1056mm (41.57") of precipitation is accumulated.

Daylight

In September, the average length of the day 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

The months with the most sunshine are August and September, with an average of 9.7h of sunshine.

UV index

The months with the highest UV index in Balongdowo are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

How hot is it in September?
In September, the average high-temperature and low-temperature in Balongdowo are 33.9°C (93°F) and 23.1°C (73.6°F) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 44°C (111.2°F).
What is the least humid month?
With an average relative humidity of 65%, September is the least humid month.
What is the average humidity in September?
In Balongdowo, the average relative humidity in September is 65%.
How many days does it rain in September?
In Balongdowo, during September, the rain falls for 9.3 days and regularly aggregates up to 20mm (0.79") of precipitation.
How many hours of daylight does Balongdowo have in September?
In September, the average day length is 12h and 4min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:29 and sunset at 17:28. On the last day of the month, sunrise is at 05:13 and sunset at 17:23 WIB.
What are the months with the most sunshine?
August and September, with an average of 9.7h of sunshine, are months with the most sunshine in Balongdowo, Indonesia.
How many hours of sunshine does Balongdowo have in September?
In Balongdowo, the average sunshine duration in September is 9.7h.
What is the month with the highest UV index?
The months with the highest UV index are February through December, with an average maximum UV index of 7.
How high is the UV index in September?
In September, the average daily maximum UV index in Balongdowo is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe 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
Balongdowo, Indonesia
  • Average high temperature in September: 33.9°C

The warmest month (with the highest average high temperature) is October (34.2°C).
The months with the lowest average high temperature are January and February (29.8°C).

  • Average low temperature in September: 23.1°C

The month with the highest average low temperature is November (24.9°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).

Average pressure in September
Balongdowo, Indonesia
  • Average pressure in September: 1011.1mbar

The month with the highest atmospheric pressure is August (1011.2mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in September
Balongdowo, Indonesia
  • Average wind speed in September: 8.8km/h

The windiest month (with the highest average wind speed) is September (8.8km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).

Average humidity in September
Balongdowo, Indonesia
  • Average humidity in September: 65%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (65%).

Average rainfall in September
Balongdowo, Indonesia
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is March (165mm).
The driest month (with the least rainfall) is August (12mm).

Average rainfall days in September
Balongdowo, Indonesia
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is December (27.5 days).
The month with the least rainy days is August (7.3 days).

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

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).

Average sunshine days in September
Balongdowo, Indonesia
  • Average sunshine days in September: 19 days

The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is December (2.8 days).

Average UV index in September
Balongdowo, Indonesia
  • Average UV index in September: 7

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

Average cloud cover in September
Balongdowo, Indonesia
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is September (Cloud cover 22).

Average visibility in September
Balongdowo, Indonesia
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February and March (8km).

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