September weather forecastPenpen, Indonesia

September

Weather in September

The first month of the spring, September, is a hot month in Penpen, Indonesia, with an average temperature ranging between min 22.6°C (72.7°F) and max 30.6°C (87.1°F).

Temperature

As Penpen welcomes September, the average high-temperature records at a hot 30.6°C (87.1°F), marking an insignificant deviation from the prior month. Penpen records an average nighttime low of 22.6°C (72.7°F) in September.

Heat index

For most parts of September, the heat index is computed to be a torrid 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. 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. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

September and October, with an average relative humidity of 71%, are the least humid months.

Rainfall

In Penpen, in September, during 10.7 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Penpen, during the entire year, the rain falls for 244.1 days and collects up to 1216mm (47.87") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September in Penpen, 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

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

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Penpen. 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 health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

The average high-temperature and low-temperature during September are 30.6°C (87.1°F) and 22.6°C (72.7°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 37°C (98.6°F).

The months with the lowest humidity in Penpen are September and October, with an average relative humidity of 71%.

In Penpen, the average relative humidity in September is 71%.

In Penpen, Indonesia, in September, it is raining for 10.7 days, with typically 22mm (0.87") of accumulated precipitation.

The average day length in September in Penpen, Indonesia, 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.

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

The average sunshine duration in September in Penpen, Indonesia, is 9.7h.

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 in Penpen, Indonesia.

In September, the average daily maximum UV index in Penpen is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Penpen, Indonesia

  • Average high temperature in September: 30.6°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: 22.6°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
Penpen, Indonesia

  • Average pressure in September: 1011.4mbar

The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Penpen, Indonesia

  • Average wind speed in September: 12.3km/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
Penpen, Indonesia

  • Average humidity in September: 71%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (71%).

Average rainfall in September
Penpen, 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
Penpen, 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
Penpen, Indonesia

  • Average daylight in September: 12h and 6min

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 42min

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 18min).

Average sunshine days in September
Penpen, Indonesia

  • Average sunshine days in September: 15.4 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
Penpen, 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
Penpen, 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
Penpen, 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).