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
Weather in September
Temperature
September and October, when the average high-temperature reaches 33.6°C (92.5°F), are the warmest months.Heat index
September's average heat index is evaluated at a blisteringly hot 43°C (109.4°F). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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 natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The least humid month is September, with an average relative humidity of 65%.Rainfall
In September, in Jepang, the rain falls for 10.9 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, there are 256 rainfall days, and 1649mm (64.92") of precipitation is accumulated.Daylight
In September, the average length of the day in Jepang is 12h and 4min.On the first day of the month, sunrise is at 05:36 and sunset at 17:35. On the last day of September, in Jepang, sunrise is at 05:21 and sunset at 17:31 WIB.
Sunshine
In Jepang, the average sunshine in September is 9.5h.UV index
The months with the highest UV index in Jepang are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are the warmest months in Jepang?
How hot does it get in Jepang in September?
What is the least humid month in Jepang?
What is the average humidity in September in Jepang?
How much does it rain in Jepang in September?
What is the average length of the day in September in Jepang?
When are sunrise and sunset in September in Jepang?
How long on average sun shines in September in Jepang?
When is the highest UV index in Jepang?
What is the UV index reading in September in Jepang?
Average temperature in September
Jepang, Indonesia
- Average high temperature in September: 33.6°C
The warmest months (with the highest average high temperature) are September and October (33.6°C).
The months with the lowest average high temperature are January and February (29.8°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is November (24.6°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).
Average pressure in September
Jepang, Indonesia
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Jepang, Indonesia
- Average wind speed in September: 8.3km/h
The windiest months (with the highest average wind speed) are January and August (8.6km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Jepang, Indonesia
- Average humidity in September: 65%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Jepang, Indonesia
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is March (259mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in September
Jepang, Indonesia
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is January (29.9 days).
The month with the least rainy days is August (10.6 days).
Average daylight in September /
Average sunshine in September
Jepang, 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in September
Jepang, Indonesia
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is January (0.3 days).
Average UV index in September
Jepang, 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
Jepang, Indonesia
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 28).
Average visibility in September
Jepang, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March, April and December (8km).
Jepang, Indonesia
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