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
Yuzawa's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's 27.8°C (82°F) to a still warm 23.3°C (73.9°F). Yuzawa records a steady low-temperature average of 14.3°C (57.7°F) during September.Humidity
In Yuzawa, the average relative humidity in September is 83%.Rainfall
In Yuzawa, in September, it is raining for 16.8 days, with typically 56mm (2.2") of accumulated precipitation. Throughout the year, there are 186.9 rainfall days, and 741mm (29.17") of precipitation is accumulated.Snowfall
In Yuzawa, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 05:15 and sunset at 18:13. On the last day of the month, sunrise is at 05:39 and sunset at 17:30 JST.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Yuzawa, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Yuzawa, Japan
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is August (18.7°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).
Average pressure in September
Yuzawa, Japan
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Yuzawa, Japan
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is January (11km/h).
The calmest month (with the lowest average wind speed) is July (6.1km/h).
Average humidity in September
Yuzawa, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Yuzawa, Japan
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is January (96mm).
The driest month (with the least rainfall) is May (35mm).
Average rainfall days in September
Yuzawa, Japan
- Average rainfall days in September: 16.8 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Yuzawa, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (638mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Yuzawa, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23 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
Yuzawa, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Yuzawa, Japan
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is May (13.4 days).
The month with the least sunshine days is January (4.6 days).
Average UV index in September
Yuzawa, 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 and December (UV index 1).
Average cloud cover in September
Yuzawa, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in September
Yuzawa, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January and February (7km).
