September weather forecastMitai, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Mitai, Japan, with an average temperature varying between 16.2°C (61.2°F) and 25.3°C (77.5°F).Temperature
In Mitai, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 29.1°C (84.4°F) to a still moderately hot 25.3°C (77.5°F). An average minimum temperature of 16.2°C (61.2°F) marks the month of September in Mitai.Humidity
The average relative humidity in September is 86%.Rainfall
In September, the rain falls for 21.4 days. Throughout September, 143mm (5.63") of precipitation is accumulated. In Mitai, during the entire year, the rain falls for 197 days and collects up to 1432mm (56.38") of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 05:49 and sunset at 18:39. On the last day of the month, sunrise is at 06:08 and sunset at 18:01 JST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In Mitai, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mitai, Japan
- Average high temperature in September: 25.3°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in September: 16.2°C
The month with the highest average low temperature is August (19.7°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).
Average pressure in September
Mitai, Japan
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Mitai, Japan
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is March (6.7km/h).
The calmest month (with the lowest average wind speed) is November (5.2km/h).
Average humidity in September
Mitai, Japan
- Average humidity in September: 86%
The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Mitai, Japan
- Average rainfall in September: 143mm
The wettest month (with the highest rainfall) is July (276mm).
The driest month (with the least rainfall) is November (45mm).
Average rainfall days in September
Mitai, Japan
- Average rainfall days in September: 21.4 days
The month with the highest number of rainy days is July (27.9 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in September
Mitai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (137mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Mitai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mitai, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is May (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Mitai, Japan
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is July (2.2 days).
Average UV index in September
Mitai, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Mitai, Japan
- Average cloud cover in September: 59
The months with the most cloud cover are June and July (Cloud cover 66).
The month with the least cloud cover is January (Cloud cover 47).
Average visibility in September
Mitai, Japan
- Average visibility in September: 7km
The months with the highest visibility are March and April (8km).
The months with the lowest visibility are June and July (6km).





