September weather forecastPerwira, Indonesia
September weather forecast for Perwira, Indonesia: In September, the average heat index, which calculates the temperature value influenced by the moisture in the air, is evaluated at 37°C (98.6°F). September, the first month of the spring in Perwira, is still a tropical month, with an average temperature fluctuating between 25.2°C (77.4°F) and 31.1°C (88°F).
September
Weather in September
September, the first month of the spring in Perwira, is still a tropical month, with an average temperature fluctuating between 25.2°C (77.4°F) and 31.1°C (88°F).Temperature
The transition from August to September brings an average high-temperature of a still tropical 31.1°C (88°F), barely different from August's 30.9°C (87.6°F). Perwira in September anticipates an average nighttime temperature of 25.2°C (77.4°F).Heat index
The heat index for September is evaluated at a fiery hot 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.The standards for the heat index are set for locations in shade and under light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. 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.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In September, the average relative humidity is 68%.Rainfall
In Perwira, in September, during 11.8 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, there are 264.8 rainfall days, and 1580mm (62.2") of precipitation is accumulated.Daylight
In Perwira, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:52 and sunset at 17:51. On the last day of the month, sunrise is at 05:37 and sunset at 17:46 WIB.
Sunshine
The average sunshine in September is 9.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Perwira, Indonesia
- Average high temperature in September: 31.1°C
The warmest month (with the highest average high temperature) is October (31.7°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is November (26.5°C).
The coldest months (with the lowest average low temperature) are July and August (24.8°C).
Average pressure in September
Perwira, Indonesia
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Perwira, Indonesia
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is January (13km/h).
The calmest month (with the lowest average wind speed) is November (8.4km/h).
Average humidity in September
Perwira, Indonesia
- Average humidity in September: 68%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Perwira, Indonesia
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is March (213mm).
The driest month (with the least rainfall) is August (30mm).
Average rainfall days in September
Perwira, Indonesia
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is March (28.9 days).
The month with the least rainy days is August (9.6 days).
Average daylight in September /
Average sunshine in September
Perwira, 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 36min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in September
Perwira, Indonesia
- Average sunshine days in September: 16 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (0.8 days).
Average UV index in September
Perwira, 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
Perwira, Indonesia
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Perwira, 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).
