September weather forecastMitoma, Japan
September
Weather in September
September, the first month of the autumn in Mitoma, is still a warm month, with an average temperature varying between 26.2°C (79.2°F) and 20.6°C (69.1°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a tropical 30.3°C (86.5°F) in August to a moderately hot 26.2°C (79.2°F). Throughout September in Mitoma, Japan, a steady low-temperature average of 20.6°C (69.1°F) is noted.Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Mitoma, the rain falls for 15.7 days. Throughout September, 85mm (3.35") of precipitation is accumulated. Throughout the year, there are 178 rainfall days, and 1063mm (41.85") of precipitation is accumulated.Snowfall
In Mitoma, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 05:52 and sunset at 18:44. On the last day of September, sunrise is at 06:12 and sunset at 18:04 JST.
Sunshine
In September, the average sunshine in Mitoma is 8.1h.UV index
In Mitoma, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun is at its strongest around midday, find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mitoma, Japan
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in September: 20.6°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in September
Mitoma, Japan
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is January (1022.1mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in September
Mitoma, Japan
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).
Average humidity in September
Mitoma, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).
Average rainfall in September
Mitoma, Japan
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is July (193mm).
The driest month (with the least rainfall) is January (52mm).
Average rainfall days in September
Mitoma, Japan
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is May (10.8 days).
Average snowfall in September
Mitoma, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (22mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Mitoma, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.9 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
Mitoma, 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: 10h and 0min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Mitoma, Japan
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Mitoma, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Mitoma, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mitoma, Japan
- Average visibility in September: 10km
The months with the highest visibility are March, September, October, November and December (10km).
The months with the lowest visibility are January, February, April, May, June, July and August (9km).





