September weather forecast
Kaliabang, Indonesia

September

Weather in September

The first month of the spring, September, is also a hot month in Kaliabang, Indonesia, with an average temperature fluctuating between 31.9°C (89.4°F) and 25.1°C (77.2°F).

Temperature

On the advent of September, Kaliabang's average high-temperature exhibits a minor adjustment to a still hot 31.9°C (89.4°F) from August's 31.1°C (88°F). Kaliabang experiences an average low-temperature of 25.1°C (77.2°F) in month of September.

Heat index

For most parts of September, the heat index is estimated at a torrid 39°C (102.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

September and October, with an average relative humidity of 67%, are the least humid months.

Rainfall

In Kaliabang, Indonesia, during September, the rain falls for 14 days and regularly aggregates up to 47mm (1.85") of precipitation. Throughout the year, there are 270.6 rainfall days, and 1523mm (59.96") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:52 and sunset at 17:51. On the last day of the month, sunrise is at 05:37 and sunset at 17:46 WIB.

Sunshine

In Kaliabang, the average sunshine in September is 9.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

How hot is it in September?
In Kaliabang, 31.9°C (89.4°F) is the average high-temperature and 25.1°C (77.2°F) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 39°C (102.2°F).
What are the least humid months?
September and October, with an average relative humidity of 67%, are the least humid months in Kaliabang.
What is the average humidity in September?
In Kaliabang, the average relative humidity in September is 67%.
How much does it rain in September?
In Kaliabang, during September, the rain falls for 14 days and regularly aggregates up to 47mm (1.85") of precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 4min.
What time are sunrise and sunset in September?
On the first day of September, sunrise is at 05:52 and sunset at 17:51. On the last day of the month, sunrise is at 05:37 and sunset at 17:46 WIB.
How many hours of sunshine does Kaliabang have in September?
In Kaliabang, the average sunshine duration in September is 9.6h.
What is the month with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
When is the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
What is the UV index intensity in September?
In Kaliabang, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Kaliabang, Indonesia
  • Average high temperature in September: 31.9°C

The warmest month (with the highest average high temperature) is October (32°C).
The month with the lowest average high temperature is February (29.6°C).

  • Average low temperature in September: 25.1°C

The month with the highest average low temperature is November (26.4°C).
The coldest months (with the lowest average low temperature) are July and August (24.3°C).

Average pressure in September
Kaliabang, Indonesia
  • Average pressure in September: 1011mbar

The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Kaliabang, Indonesia
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).

Average humidity in September
Kaliabang, Indonesia
  • Average humidity in September: 67%

The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are September and October (67%).

Average rainfall in September
Kaliabang, Indonesia
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is March (215mm).
The driest month (with the least rainfall) is August (31mm).

Average rainfall days in September
Kaliabang, Indonesia
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is March (29.2 days).
The month with the least rainy days is August (11.3 days).

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

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).

Average sunshine days in September
Kaliabang, Indonesia
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is February (0.7 days).

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

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

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

The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).

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

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

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