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
In September, Nirmala experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 31°C (87.8°F) in August to a still hot 31.3°C (88.3°F). September sees the temperature falling to a mean low of 22.2°C (72°F).Heat index
In September, the heat index is evaluated at a torrid 38°C (100.4°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. 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.Rainfall
The month with the least rainfall is September, when the rain falls for 16.6 days and typically collects 65mm (2.56") 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 05:54 and sunset at 17:53. On the last day of September, sunrise is at 05:39 and sunset at 17:48 WIB.
Sunshine
In September, the average sunshine is 9.1h.UV index
The months with the highest UV index are February, April, May, July through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
How many hours of daylight does Nirmala have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index?
What is the UV index reading in September?
Average temperature in September
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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
Nirmala, 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).
