September weather forecastGemah, Indonesia
September
Weather in September
September, the first month of the spring in Gemah, is still a tropical month, with an average temperature varying between 33.2°C (91.8°F) and 23.8°C (74.8°F).Temperature
As Gemah welcomes September, the average high-temperature records at a still hot 33.2°C (91.8°F), marking an insignificant deviation from the prior month. An average low-temperature of 23.8°C (74.8°F) is recorded during the nights in September in Gemah.Heat index
The heat index value for September is appraised at an extremely hot 42°C (107.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The least humid month is September, with an average relative humidity of 66%.Rainfall
In September, the rain falls for 10.8 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Gemah, during the entire year, the rain falls for 226.7 days and collects up to 1000mm (39.37") of precipitation.Daylight
The average length of the day in September 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 05:23 and sunset at 17:32 WIB.
Sunshine
In September, the average sunshine is 9.7h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gemah, Indonesia
- Average high temperature in September: 33.2°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is January (29.7°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is November (25.4°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in September
Gemah, 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 (1009mbar).
Average wind speed in September
Gemah, Indonesia
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is January (10.1km/h).
The calmest month (with the lowest average wind speed) is April (5.8km/h).
Average humidity in September
Gemah, Indonesia
- Average humidity in September: 66%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
Gemah, Indonesia
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is January (163mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in September
Gemah, Indonesia
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is January (25.3 days).
The month with the least rainy days is August (8.9 days).
Average daylight in September /
Average sunshine in September
Gemah, 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 42min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in September
Gemah, Indonesia
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is November (3 days).
Average UV index in September
Gemah, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Gemah, Indonesia
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Gemah, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).
