September weather forecastAkune, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Akune, Japan, with an average temperature fluctuating between 22.7°C (72.9°F) and 27.1°C (80.8°F).Temperature
The arrival of September brings an average high-temperature of a still moderately hot 27.1°C (80.8°F), nearly identical to August's 29.4°C (84.9°F). During the September nights, Akune's temperature maintains an average close to the daytime highs, settling at a pleasant 22.7°C (72.9°F).Heat index
September's average heat index is estimated at a hot 30°C (86°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
In Akune, Japan, the average relative humidity in September is 79%.Rainfall
In Akune, in September, during 17.5 rainfall days, 93mm (3.66") of precipitation is typically accumulated. Throughout the year, there are 190.1 rainfall days, and 1194mm (47.01") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Akune.Sea temperature
In September, the average sea temperature is 27.2°C (81°F).Note: For swimming, diving, and various water activities, the temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as highly enjoyable and comfortable for extended durations without any discomfort.
Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 05:54 and sunset at 18:43. On the last day of September, sunrise is at 06:12 and sunset at 18:05 JST.
Sunshine
In Akune, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Akune, Japan
- Average high temperature in September: 27.1°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).
Average pressure in September
Akune, Japan
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1008mbar).
Average wind speed in September
Akune, Japan
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is December (19.8km/h).
The calmest month (with the lowest average wind speed) is June (11.2km/h).
Average humidity in September
Akune, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Akune, Japan
- Average rainfall in September: 93mm
The wettest month (with the highest rainfall) is June (261mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Akune, Japan
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is October (11.2 days).
Average snowfall in September
Akune, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (3mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Akune, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Akune, Japan
- Average sea temperature in September: 27.2°C
The best month for swimming (with the highest average sea temperature) is August (27.9°C).
The coldest month (with the lowest average sea temperature) is March (16.2°C).
Average daylight in September /
Average sunshine in September
Akune, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Akune, Japan
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Akune, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Akune, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is June (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Akune, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
