September weather forecastOppamacho, Japan
September
Weather in September
September, the first month of the autumn in Oppamacho, is also a moderately hot month, with an average temperature varying between 22.3°C (72.1°F) and 26°C (78.8°F).Temperature
The arrival of September brings an average high-temperature of a still warm 26°C (78.8°F), nearly identical to August's 28.8°C (83.8°F). September's average low temperature in Oppamacho, Japan, is an agreeable 22.3°C (72.1°F), displaying a subtle drop from its daily peak.Humidity
In September, the average relative humidity is 77%.Rainfall
In Oppamacho, Japan, in September, during 15.2 rainfall days, 106mm (4.17") of precipitation is typically accumulated. In Oppamacho, during the entire year, the rain falls for 150.9 days and collects up to 867mm (34.13") of precipitation.Snowfall
In Oppamacho, snow does not fall in April through December.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 05:14 and sunset at 18:08. On the last day of September, sunrise is at 05:35 and sunset at 17:27 JST.
Sunshine
In September, the average sunshine in Oppamacho is 8.2h.UV index
In September, the average daily maximum UV index in Oppamacho is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. 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
Oppamacho, Japan
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 22.3°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 (5.3°C).
Average pressure in September
Oppamacho, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Oppamacho, Japan
- Average wind speed in September: 16.8km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in September
Oppamacho, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Oppamacho, Japan
- Average rainfall in September: 106mm
The wettest month (with the highest rainfall) is October (119mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in September
Oppamacho, Japan
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Oppamacho, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Oppamacho, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Oppamacho, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Oppamacho, Japan
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Oppamacho, 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
Oppamacho, Japan
- Average cloud cover in September: 36
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Oppamacho, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
