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
September's weather displays an average high-temperature of a still hot 31.3°C (88.3°F), slightly varied from August's 30.5°C (86.9°F). An average low-temperature of 22.6°C (72.7°F) is noted during the nights in September.Heat index
The heat index value for September is estimated at a torrid 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
September and October, with an average relative humidity of 69%, are the least humid months.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 18mm (0.71") of precipitation is accumulated. In Kempek, during the entire year, the rain falls for 222.3 days and collects up to 950mm (37.4") of precipitation.Daylight
In Kempek, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of September, in Kempek, sunrise is at 05:31 and sunset at 17:41 WIB.
Sunshine
The months with the most sunshine are August and September, with an average of 9.7h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Kempek. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 7 transforms into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What are the least humid months?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
What is the month with the most sunshine in Kempek?
How long on average sun shines in September?
What is the month with the highest UV index?
What are the months with the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Kempek, Indonesia
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.4°C).
- Average low temperature in September: 22.6°C
The months with the highest average low temperature are November and December (25°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).
Average pressure in September
Kempek, Indonesia
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Kempek, Indonesia
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).
Average humidity in September
Kempek, Indonesia
- Average humidity in September: 69%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in September
Kempek, Indonesia
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in September
Kempek, Indonesia
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is December (25.5 days).
The month with the least rainy days is August (6.5 days).
Average daylight in September /
Average sunshine in September
Kempek, 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 4min
The months with the most sunshine are August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in September
Kempek, Indonesia
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is December (3.5 days).
Average UV index in September
Kempek, 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
Kempek, Indonesia
- Average cloud cover in September: 19
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Kempek, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
