Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September sees a slight reduction in average high-temperature, with a shift from 29.8°C (85.6°F) in August to a still moderately hot 25.1°C (77.2°F). During the month of September, an average low-temperature of 17°C (62.6°F) is recorded in Oasa.Humidity
The average relative humidity in September is 83%.Rainfall
In September, in Oasa, the rain falls for 16.1 days. Throughout September, 114mm (4.49") of precipitation is accumulated. Throughout the year, in Oasa, there are 183.2 rainfall days, and 1092mm (42.99") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Oasa.Daylight
In Oasa, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:43 and sunset at 18:37. On the last day of the month, sunrise is at 06:04 and sunset at 17:55 JST.
Sunshine
In September, the average sunshine is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Oasa?
What is the average humidity in September in Oasa?
How much does it rain in Oasa in September?
When it does not snow in Oasa?
How many hours of daylight does Oasa have in September?
When are sunrise and sunset in September in Oasa?
How many hours of sunshine does Oasa have in September?
How high is the UV index in September in Oasa?
Average temperature in September
Oasa, Japan
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in September
Oasa, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is January (1020.9mbar).
The months with the lowest atmospheric pressure are June and July (1008.3mbar).
Average wind speed in September
Oasa, Japan
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is December (10.6km/h).
The calmest month (with the lowest average wind speed) is June (6.3km/h).
Average humidity in September
Oasa, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Oasa, Japan
- Average rainfall in September: 114mm
The wettest month (with the highest rainfall) is July (202mm).
The driest month (with the least rainfall) is November (42mm).
Average rainfall days in September
Oasa, Japan
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is May (11.6 days).
Average snowfall in September
Oasa, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (145mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Oasa, 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 April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Oasa, Japan
- Average daylight in September: 12h and 2min
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 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Oasa, Japan
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is May (18.2 days).
The months with the least sunshine days are July and December (8.1 days).
Average UV index in September
Oasa, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Oasa, Japan
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is May (Cloud cover 39).
Average visibility in September
Oasa, Japan
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, November and December (9km).
The month with the lowest visibility is July (7km).
