September weather forecastMiyara, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Miyara, Japan, with an average temperature ranging between max 28.5°C (83.3°F) and min 27.5°C (81.5°F).Temperature
Miyara indicates an average high-temperature of a still warm 28.5°C (83.3°F) in September, showing minor variation from August's 29.3°C (84.7°F). The nights of September in Miyara cool down to an average low of 27.5°C (81.5°F), subtly lower than daytime highs.Heat index
September's heat index is estimated at a tropical 33°C (91.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Consider that heat index readings are for situations in the shade and light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Miyara, the average relative humidity in September is 79%.Rainfall
In Miyara, in September, it is raining for 19.3 days, with typically 138mm (5.43") of accumulated precipitation. Throughout the year, in Miyara, there are 228 rainfall days, and 1184mm (46.61") of precipitation is accumulated.Daylight
The average length of the day in September in Miyara is 12h and 18min.On the first day of the month, sunrise is at 06:24 and sunset at 19:01. On the last day of September, sunrise is at 06:34 and sunset at 18:31 JST.
Sunshine
In Miyara, the average sunshine in September is 8.3h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 in September translates into these instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Miyara, Japan
- Average high temperature in September: 28.5°C
The warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is January (20.6°C).
- Average low temperature in September: 27.5°C
The month with the highest average low temperature is July (28.4°C).
The coldest month (with the lowest average low temperature) is January (18.7°C).
Average pressure in September
Miyara, Japan
- Average pressure in September: 1008.7mbar
The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is August (1005.6mbar).
Average wind speed in September
Miyara, Japan
- Average wind speed in September: 25.1km/h
The windiest month (with the highest average wind speed) is December (32.9km/h).
The calmest month (with the lowest average wind speed) is May (20.4km/h).
Average humidity in September
Miyara, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January and December (76%).
Average rainfall in September
Miyara, Japan
- Average rainfall in September: 138mm
The wettest month (with the highest rainfall) is August (217mm).
The driest month (with the least rainfall) is March (50mm).
Average rainfall days in September
Miyara, Japan
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is April (16.7 days).
Average daylight in September /
Average sunshine in September
Miyara, Japan
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
Miyara, Japan
- Average sunshine days in September: 8.2 days
The month with the most sunshine days is June (11.8 days).
The month with the least sunshine days is November (6.2 days).
Average UV index in September
Miyara, Japan
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 5).
Average cloud cover in September
Miyara, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Miyara, Japan
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





