September weather forecast
Purworejo, Indonesia

September

Weather in September

The first month of the spring, September, is still a warm month in Purworejo, Indonesia, with an average temperature fluctuating between 29.7°C (85.5°F) and 20.8°C (69.4°F).

Temperature

September and October bring Purworejo's highest average temperatures, reaching a high of 29.7°C (85.5°F).

Heat index

The heat index value for September is appraised at a sweltering 36°C (96.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

September is the least humid month in Purworejo, Indonesia, with an average relative humidity of 77%.

Rainfall

In Purworejo, during September, the rain falls for 15.8 days and regularly aggregates up to 53mm (2.09") of precipitation. In Purworejo, during the entire year, the rain falls for 290.9 days and collects up to 2042mm (80.39") of precipitation.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:38. On the last day of September, sunrise is at 05:24 and sunset at 17:34 WIB.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The months with the lowest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.

Frequently asked questions

What are the warmest months in Purworejo?
The months of September and October see the peak of Purworejo's temperatures, averaging a high of 29.7°C (85.5°F).
How hot is September in Purworejo?
Purworejo in September has an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 20.8°C (69.4°F). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 36°C (96.8°F).
What is the least humid month in Purworejo?
September is the least humid month in Purworejo, with an average relative humidity of 77%.
What is the average humidity in September in Purworejo?
In September, the average relative humidity is 77%.
How many days does it rain in September in Purworejo?
In Purworejo, Indonesia, in September, it is raining for 15.8 days, with typically 53mm (2.09") of accumulated precipitation.
What is the average length of the day in September in Purworejo?
The average day length in September in Purworejo, Indonesia, is 12h and 4min.
When is the sunrise / sunset in September in Purworejo?
On the first day of September in Purworejo, sunrise is at 05:40 and sunset at 17:38. On the last day of the month, sunrise is at 05:24 and sunset at 17:34 WIB.
How long on average sun shines in September in Purworejo?
In Purworejo, the average sunshine duration in September is 8.9h.
When is the lowest UV index in Purworejo?
January through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Purworejo, Indonesia.
How high is the UV index in September in Purworejo?
In Purworejo, Indonesia, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Purworejo, Indonesia
  • Average high temperature in September: 29.7°C

The warmest months (with the highest average high temperature) are September and October (29.7°C).
The month with the lowest average high temperature is July (28.1°C).

  • Average low temperature in September: 20.8°C

The months with the highest average low temperature are January and November (22.3°C).
The coldest month (with the lowest average low temperature) is August (20.4°C).

Average pressure in September
Purworejo, 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 (1009mbar).

Average wind speed in September
Purworejo, Indonesia
  • Average wind speed in September: 10km/h

The windiest months (with the highest average wind speed) are August and September (10km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).

Average humidity in September
Purworejo, Indonesia
  • Average humidity in September: 77%

The months with the highest relative humidity are January, February, March, April and May (85%).
The month with the lowest relative humidity is September (77%).

Average rainfall in September
Purworejo, Indonesia
  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is March (291mm).
The driest month (with the least rainfall) is August (27mm).

Average rainfall days in September
Purworejo, Indonesia
  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is March (30.5 days).
The month with the least rainy days is August (12.2 days).

Average daylight in September /
Average sunshine in September
Purworejo, Indonesia
  • Average daylight in September: 12h and 1min

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 5min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).

Average sunshine days in September
Purworejo, Indonesia
  • Average sunshine days in September: 9.4 days

The month with the most sunshine days is August (14.4 days).
The months with the least sunshine days are January, February and March (0.3 days).

Average UV index in September
Purworejo, Indonesia
  • Average UV index in September: 6

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

Average cloud cover in September
Purworejo, Indonesia
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Purworejo, Indonesia
  • Average visibility in September: 9km

The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May, November and December (8km).

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