September weather forecastJampang, Indonesia

September

Weather in September

September, the first month of the spring in Jampang, is still a tropical month, with an average temperature varying between 31.6°C (88.9°F) and 23.5°C (74.3°F).

Temperature

The shift to September signals an average high-temperature of a still tropical 31.6°C (88.9°F), subtly varied from August's 31.3°C (88.3°F). In September, Jampang's temperature tends to fall to an average low of 23.5°C (74.3°F) during the night.

Heat index

For September, the heat index is evaluated at a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In Jampang, in September, it is raining for 16 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, there are 291.3 rainfall days, and 1460mm (57.48") of precipitation is accumulated.

Daylight

In Jampang, the average length of the day in September is 12h and 4min.
On the first day of September in Jampang, sunrise is at 05:53 and sunset at 17:53. On the last day of the month, sunrise is at 05:38 and sunset at 17:48 WIB.

Sunshine

The month with the most sunshine in Jampang is September, with an average of 9.3h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

The high-temperature, in September, in Jampang, is 31.6°C (88.9°F), while the low-temperature averages to 23.5°C (74.3°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 40°C (104°F).

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

In September, the average relative humidity is 71%.

In Jampang, in September, it is raining for 16 days, with typically 47mm (1.85") of accumulated precipitation.

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

In September, on the first day of the month, sunrise is at 05:53 and sunset at 17:53. On the last day of the month, sunrise is at 05:38 and sunset at 17:48 WIB.

The month with the most sunshine is September, with an average of 9.3h of sunshine.

In September, the average sunshine duration in Jampang, Indonesia, is 9.3h.

February through December, with an average maximum UV index of 7, are months with the highest UV index in Jampang.

The average daily maximum UV index in September in Jampang is 7. A UV Index value of 6 to 7 symbolizes a high health risk 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jampang, Indonesia

  • Average high temperature in September: 31.6°C

The warmest month (with the highest average high temperature) is October (32.1°C).
The month with the lowest average high temperature is January (29.8°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is August (23.1°C).

Average pressure in September
Jampang, Indonesia

  • Average pressure in September: 1011.2mbar

The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).

Average wind speed in September
Jampang, Indonesia

  • Average wind speed in September: 5.2km/h

The windiest month (with the highest average wind speed) is January (9.4km/h).
The calmest month (with the lowest average wind speed) is August (5km/h).

Average humidity in September
Jampang, Indonesia

  • Average humidity in September: 71%

The months with the highest relative humidity are February and March (80%).
The months with the lowest relative humidity are September and October (71%).

Average rainfall in September
Jampang, Indonesia

  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is March (189mm).
The driest month (with the least rainfall) is August (45mm).

Average rainfall days in September
Jampang, Indonesia

  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is January (29.4 days).
The month with the least rainy days is August (14.3 days).

Average daylight in September /
Average sunshine in September
Jampang, 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 48min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 7h and 0min).

Average sunshine days in September
Jampang, Indonesia

  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is August (14 days).
The month with the least sunshine days is February (0.7 days).

Average UV index in September
Jampang, 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
Jampang, Indonesia

  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Jampang, Indonesia

  • Average visibility in September: 10km

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