The first month of the autumn,
September, is also a moderately hot month in
Nobeoka,
Japan, with an average temperature ranging between max 28.1°C (82.6°F) and min 19.6°C (67.3°F).
Temperature
September's commencement is accompanied by an average high-temperature of a moderately hot 28.1°C (82.6°F), diverging marginally from
August's 30.7°C (87.3°F). Nobeoka's temperature in September lowers to a consistent average of 19.6°C (67.3°F) during the nights.
Heat index
The average heat index in September is computed to be a hot 33°C (91.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. 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.
Humidity
In September, the average relative humidity is 81%.
Rainfall
Throughout September, in Nobeoka, 307mm (12.09") of precipitation is accumulated. Throughout the year, 2283mm (89.88") of rain is accumulated.
Sea temperature
In Nobeoka, the average seawater temperature in September is 27.1°C (80.8°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:38. On the last day of September, sunrise is at 06:06 and sunset at 17:59 JST.
Sunshine
In Nobeoka, the average sunshine in September is 5.3h.