September weather forecast
Gumulung Tonggoh, Indonesia

September

Weather in September

The first month of the spring, September, is a tropical month in Gumulung Tonggoh, Indonesia, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 30.8°C (87.4°F).

Temperature

September begins with an average high-temperature of a hot 30.8°C (87.4°F), reflecting close similarity to the preceding month. During September, the average low-temperature in Gumulung Tonggoh is an agreeable 22.8°C (73°F).

Heat index

For most parts of September, the heat index is appraised at a torrid 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

September is the least humid month in Gumulung Tonggoh, with an average relative humidity of 70%.

Rainfall

In Gumulung Tonggoh, during September, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation. In Gumulung Tonggoh, during the entire year, the rain falls for 244.1 days and collects up to 1214mm (47.8") of precipitation.

Daylight

The average length of the day in September in Gumulung Tonggoh is 12h and 4min.
On the first day of September, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:30 and sunset at 17:40 WIB.

Sunshine

The months with the most sunshine are July through September, with an average of 9.7h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Gumulung Tonggoh. The months with the lowest UV index are January 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 exposure to the Sun's UV rays for the average person.
Note: An average UV index of 7 in September transforms into this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

How hot is September in Gumulung Tonggoh?
The average high-temperature, in September, in Gumulung Tonggoh, is 30.8°C (87.4°F), while the average low-temperature is 22.8°C (73°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 37°C (98.6°F).
What is the least humid month in Gumulung Tonggoh?
The least humid month is September, with an average relative humidity of 70%.
What is the average humidity in September in Gumulung Tonggoh?
In September, the average relative humidity is 70%.
How many days does it rain in September in Gumulung Tonggoh?
In Gumulung Tonggoh, during September, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation.
How many hours of daylight does Gumulung Tonggoh have in September?
In Gumulung Tonggoh, the average day length in September is 12h and 4min.
What time are sunrise and sunset in September in Gumulung Tonggoh?
On the first day of September in Gumulung Tonggoh, Indonesia, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:30 and sunset at 17:40 WIB.
What are the months with the most sunshine in Gumulung Tonggoh?
The months with the most sunshine in Gumulung Tonggoh are July through September, with an average of 9.7h of sunshine.
How many hours of sunshine does Gumulung Tonggoh have in September?
In September, the average sunshine duration in Gumulung Tonggoh, Indonesia, is 9.7h.
What are the months with the highest UV index in Gumulung Tonggoh?
The months with the highest UV index in Gumulung Tonggoh, Indonesia, are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Gumulung Tonggoh?
The months with the lowest UV index in Gumulung Tonggoh, Indonesia, are January through December, with an average maximum UV index of 7.
How high is the UV index in September in Gumulung Tonggoh?
In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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
Gumulung Tonggoh, Indonesia
  • Average high temperature in September: 30.8°C

The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in September: 22.8°C

The month with the highest average low temperature is December (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).

Average pressure in September
Gumulung Tonggoh, Indonesia
  • Average pressure in September: 1011.3mbar

The months with the highest atmospheric pressure are August and September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Gumulung Tonggoh, Indonesia
  • Average wind speed in September: 12.5km/h

The windiest month (with the highest average wind speed) is August (12.8km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).

Average humidity in September
Gumulung Tonggoh, Indonesia
  • Average humidity in September: 70%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (70%).

Average rainfall in September
Gumulung Tonggoh, Indonesia
  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is February (207mm).
The driest month (with the least rainfall) is August (13mm).

Average rainfall days in September
Gumulung Tonggoh, Indonesia
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (7.2 days).

Average daylight in September /
Average sunshine in September
Gumulung Tonggoh, 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 42min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are July, August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 24min).

Average sunshine days in September
Gumulung Tonggoh, Indonesia
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is February (0.9 days).

Average UV index in September
Gumulung Tonggoh, 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
Gumulung Tonggoh, Indonesia
  • Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Gumulung Tonggoh, Indonesia
  • Average visibility in September: 10km

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

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