September weather forecastHayashima, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Hayashima, Japan, with an average temperature varying between 20.3°C (68.5°F) and 26.5°C (79.7°F).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a tropical 30.6°C (87.1°F) in August to a moderately hot 26.5°C (79.7°F). September brings with it a nighttime average temperature of 20.3°C (68.5°F) in Hayashima.Humidity
The average relative humidity in September is 76%.Rainfall
In Hayashima, Japan, during September, the rain falls for 15.1 days and regularly aggregates up to 86mm (3.39") of precipitation. In Hayashima, during the entire year, the rain falls for 145.7 days and collects up to 742mm (29.21") of precipitation.Snowfall
March through December are months without snowfall in Hayashima.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:37 and sunset at 18:31. On the last day of the month, sunrise is at 05:58 and sunset at 17:50 JST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Hayashima, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hayashima, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in September: 20.3°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in September
Hayashima, Japan
- Average pressure in September: 1012.6mbar
The months with the highest atmospheric pressure are January and February (1020.4mbar).
The month with the lowest atmospheric pressure is June (1008.5mbar).
Average wind speed in September
Hayashima, Japan
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is June (8.3km/h).
Average humidity in September
Hayashima, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are March, April and May (70%).
Average rainfall in September
Hayashima, Japan
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is July (122mm).
The driest month (with the least rainfall) is November (21mm).
Average rainfall days in September
Hayashima, Japan
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Hayashima, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Hayashima, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Hayashima, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Hayashima, Japan
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Hayashima, Japan
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Hayashima, Japan
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Hayashima, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
