Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The average high-temperature during September is a still hot 31.3°C (88.3°F), almost matching the conditions of the preceding month. September brings an average low-temperature of 22.2°C (72°F) to Semplak.Heat index
September's heat index is estimated at a torrid 38°C (100.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
With an average relative humidity of 70%, September is the least humid month in Semplak.Rainfall
September is the month with the least rainfall. Rain falls for 16.6 days and accumulates 65mm (2.56") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:53 and sunset at 17:52. On the last day of the month, sunrise is at 05:38 and sunset at 17:47 WIB.
Sunshine
In September, the average sunshine is 9.1h.UV index
The months with the highest UV index in Semplak are February, April, May, July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
How many hours of daylight does Semplak have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Semplak, Indonesia
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in September: 22.2°C
The months with the highest average low temperature are October, November and December (23.5°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).
Average pressure in September
Semplak, Indonesia
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Semplak, Indonesia
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is January (7.9km/h).
The calmest month (with the lowest average wind speed) is July (4.9km/h).
Average humidity in September
Semplak, Indonesia
- Average humidity in September: 70%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall in September
Semplak, Indonesia
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is March (268mm).
The driest month (with the least rainfall) is September (65mm).
Average rainfall days in September
Semplak, Indonesia
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (16.5 days).
Average daylight in September /
Average sunshine in September
Semplak, 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: 9h and 1min
The month with the most sunshine is March (Average sunshine: 9h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).
Average sunshine days in September
Semplak, Indonesia
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is August (11.9 days).
The month with the least sunshine days is February (0.4 days).
Average UV index in September
Semplak, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, April, May, July, August, September and October (UV index 7).
The months with the lowest UV index are January, March, June, November and December (UV index 6).
Average cloud cover in September
Semplak, Indonesia
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Semplak, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, July, November and December (9km).
