September weather forecastDemangan, Indonesia

September

Weather in September

September, the first month of the spring in Demangan, is still a warm month, with an average temperature fluctuating between 22.3°C (72.1°F) and 28.4°C (83.1°F).

Temperature

The high-temperature average in September for Demangan is a still moderately hot 28.4°C (83.1°F), staying closely aligned with August's conditions. Throughout the month of September, the nighttime temperature dips to an average of 22.3°C (72.1°F).

Heat index

The heat index in September is estimated at a hot 33°C (91.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. 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. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

September and October, with an average relative humidity of 79%, are the least humid months.

Rainfall

In September, the rain falls for 14.9 days. Throughout September, 24mm (0.94") of precipitation is accumulated. Throughout the year, there are 246 rainfall days, and 906mm (35.67") 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 05:39 and sunset at 17:37. On the last day of September, sunrise is at 05:23 and sunset at 17:33 WIB.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The months with the highest UV index are February through May, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during September translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.

Updated: Jul 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Demangan, records 28.4°C (83.1°F), while the low-temperature is 22.3°C (72.1°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is estimated at 33°C (91.4°F).

The months with the lowest humidity are September and October, with an average relative humidity of 79%.

The average relative humidity in September in Demangan is 79%.

In Demangan, during September, the rain falls for 14.9 days and regularly aggregates up to 24mm (0.94") of precipitation.

In September, the average day length is 12h and 4min.

In September, on the first day of the month, sunrise is at 05:39 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.

In Demangan, the average sunshine duration in September is 8.7h.

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

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

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27.9°C

28.4°C

29.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.3km/h

15.3km/h

13.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

11.6

8.9

6.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Demangan, Indonesia

Average high temperature in September: 28.4°C

The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).

Average low temperature in September: 22.3°C

The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).

Average pressure in September
Demangan, Indonesia

Average pressure in September: 1011.9mbar

The months with the highest atmospheric pressure are August and September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in September
Demangan, Indonesia

Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).

Average humidity in September
Demangan, Indonesia

Average humidity in September: 79%

The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).

Average rainfall in September
Demangan, Indonesia

Average rainfall in September: 24mm

The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).

Average rainfall days in September
Demangan, Indonesia

Average rainfall days in September: 14.9 days

The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).

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

Average daylight in September: 12h and 6min

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: 8h and 42min

The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in September
Demangan, Indonesia

Average sunshine days in September: 8.9 days

The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).

Average UV index in September
Demangan, Indonesia

Average UV index in September: 7

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

Average cloud cover in September
Demangan, Indonesia

Average cloud cover in September: 40

The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in September
Demangan, Indonesia

Average visibility in September: 10km

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