September weather forecastSidorejo Kidul, Indonesia

September

Weather in September

September, the first month of the spring in Sidorejo Kidul, is a tropical month, with an average temperature varying between 21°C (69.8°F) and 30.5°C (86.9°F).

Temperature

September's arrival registers an average high-temperature of a hot 30.5°C (86.9°F), closely aligning with the temperature of the previous month. September nights experience a consistent temperature drop to an agreeable 21°C (69.8°F).

Heat index

During September, the heat index is calculated to be a torrid 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

September is the least humid month, with an average relative humidity of 74%.

Rainfall

In September, the rain falls for 15.8 days. Throughout September, 60mm (2.36") of precipitation is accumulated. Throughout the year, there are 290.2 rainfall days, and 2595mm (102.17") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of September, sunrise is at 05:22 and sunset at 17:32 WIB.

Sunshine

In September, the average sunshine is 9.1h.

UV index

September is the month with the highest UV index, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

The average high-temperature, in September, in Sidorejo Kidul, is 30.5°C (86.9°F), while the average low-temperature is 21°C (69.8°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 37°C (98.6°F).

With an average relative humidity of 74%, September is the least humid month in Sidorejo Kidul.

In September, the average relative humidity is 74%.

In Sidorejo Kidul, in September, it is raining for 15.8 days, with typically 60mm (2.36") of accumulated precipitation.

The average day length in September is 12h and 4min.

In September, on the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:22 and sunset at 17:32 WIB.

The average sunshine duration in September is 9.1h.

With an average maximum UV index of 7, September is the month with the highest UV index.

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

Average temperature in September
Sidorejo Kidul, Indonesia

  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is January (27.7°C).

  • Average low temperature in September: 21°C

The month with the highest average low temperature is November (22.4°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).

Average pressure in September
Sidorejo Kidul, Indonesia

  • Average pressure in September: 1011.5mbar

The months with the highest atmospheric pressure are August and September (1011.5mbar).
The month with the lowest atmospheric pressure is December (1009mbar).

Average wind speed in September
Sidorejo Kidul, Indonesia

  • Average wind speed in September: 7.1km/h

The windiest month (with the highest average wind speed) is September (7.1km/h).
The calmest month (with the lowest average wind speed) is April (4.6km/h).

Average humidity in September
Sidorejo Kidul, Indonesia

  • Average humidity in September: 74%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is September (74%).

Average rainfall in September
Sidorejo Kidul, Indonesia

  • Average rainfall in September: 60mm

The wettest month (with the highest rainfall) is February (379mm).
The driest month (with the least rainfall) is August (34mm).

Average rainfall days in September
Sidorejo Kidul, Indonesia

  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is January (30.4 days).
The month with the least rainy days is August (11.8 days).

Average daylight in September /
Average sunshine in September
Sidorejo Kidul, 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 6min

The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in September
Sidorejo Kidul, Indonesia

  • Average sunshine days in September: 10.6 days

The month with the most sunshine days is August (14.8 days).
The months with the least sunshine days are January and March (0.2 days).

Average UV index in September
Sidorejo Kidul, Indonesia

  • Average UV index in September: 7

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

Average cloud cover in September
Sidorejo Kidul, Indonesia

  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in September
Sidorejo Kidul, Indonesia

  • Average visibility in September: 10km

The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April, May and November (8km).