September weather forecast
Pekalongan, Indonesia

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Weather in September

The first month of the spring, September, is also a moderately hot month in Pekalongan, Indonesia, with temperature in the range of an average high of 29.3°C and an average low of 21.3°C.

Temperature

Transitioning into September, Pekalongan experiences an average high-temperature of a still moderately hot 29.3°C, marking a minor shift from the preceding month. Pekalongan, during the month of September, experiences an average low-temperature of 21.3°C.

Heat index

Throughout September, the heat index is computed to be a very hot 35°C. Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

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

Rainfall

In Pekalongan, Indonesia, in September, during 15.7 rainfall days, 42mm of precipitation is typically accumulated. In Pekalongan, Indonesia, during the entire year, the rain falls for 265.2 days and collects up to 1898mm of precipitation.

Sea temperature

In Pekalongan, the average seawater temperature in September is 28.4°C.
Note: Water activities in temperatures ranging from 25°C to 29°C are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

The average length of the day in September in Pekalongan is 12h and 4min.
On the first day of September in Pekalongan, sunrise is at 05:42 and sunset at 17:40. On the last day of the month, sunrise is at 05:26 and sunset at 17:36 WIB.

Sunshine

In September, the average sunshine in Pekalongan is 8.2h.

UV index

January, May through September and November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Caution! The Sun's UV intensity grows with reflections off sand and water.
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FAQ

How hot does it get in Pekalongan in September?

In Pekalongan, in September, the average high-temperature is 29.3°C, and the average low-temperature is 21.3°C. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 35°C.

What is the least humid month in Pekalongan?

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

What is the average humidity in September in Pekalongan?

In September, the average relative humidity in Pekalongan is 79%.

How much does it rain in Pekalongan in September?

In Pekalongan, in September, it is raining for 15.7 days, with typically 42mm of accumulated precipitation.

What is the sea water temperature in September in Pekalongan?

In September, the average sea temperature in Pekalongan, Indonesia, is 28.4°C. For any water activity, surface water temperatures between 25°C and 29°C are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Pekalongan have in September?

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

What time are sunrise and sunset in September in Pekalongan?

In September, on the first day of the month, sunrise is at 05:42 and sunset at 17:40. On the last day of the month, sunrise is at 05:26 and sunset at 17:36 WIB.

How long on average sun shines in September in Pekalongan?

In Pekalongan, Indonesia, the average sunshine duration in September is 8.2h.

What are the months with the lowest UV index in Pekalongan?

The months with the lowest UV index in Pekalongan, Indonesia, are January, May through September and November, with an average maximum UV index of 6.

What is the UV index reading in September in Pekalongan?

The average daily maximum UV index in September in Pekalongan is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Pekalongan, Indonesia

Average temperature in September - Pekalongan, Indonesia
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is March (30.5°C).
The month with the lowest average high temperature is July (28.5°C).

  • Average low temperature in September: 21.3°C

The month with the highest average low temperature is April (23.5°C).
The coldest month (with the lowest average low temperature) is August (20.9°C).

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Average pressure in September
Pekalongan, Indonesia

Average pressure in September - Pekalongan, Indonesia
  • Average pressure in September: 1011.7mbar

The months with the highest atmospheric pressure are August and September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

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Average wind speed in September
Pekalongan, Indonesia

Average wind speed in September - Pekalongan, Indonesia
  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is August (8.8km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

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Average humidity in September
Pekalongan, Indonesia

Average humidity in September - Pekalongan, Indonesia
  • Average humidity in September: 79%

The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are September and October (79%).

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Average rainfall in September
Pekalongan, Indonesia

Average rainfall in September - Pekalongan, Indonesia
  • Average rainfall in September: 42mm

The wettest month (with the highest rainfall) is January (273mm).
The driest month (with the least rainfall) is August (24mm).

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Average rainfall days in September
Pekalongan, Indonesia

Average rainfall days in September - Pekalongan, Indonesia
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (13.8 days).

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Average sea temperature in September
Pekalongan, Indonesia

Average sea temperature in September - Pekalongan, Indonesia
  • Average sea temperature in September: 28.4°C

The best month for swimming (with the highest average sea temperature) is December (30.2°C).
The coldest month (with the lowest average sea temperature) is August (28°C).

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

Average daylight in September / Average sunshine in September - Pekalongan, 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: 8h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

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Average sunshine days in September
Pekalongan, Indonesia

Average sunshine days in September - Pekalongan, Indonesia
  • Average sunshine days in September: 9.8 days

The month with the most sunshine days is August (12.1 days).
The month with the least sunshine days is February (1.5 days).

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Average UV index in September
Pekalongan, Indonesia

Average UV index in September - Pekalongan, Indonesia
  • Average UV index in September: 6

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

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Average cloud cover in September
Pekalongan, Indonesia

Average cloud cover in September - Pekalongan, Indonesia
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in September
Pekalongan, Indonesia

Average visibility in September - Pekalongan, Indonesia
  • Average visibility in September: 9km

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

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Pekalongan, Indonesia

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