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
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from 26.8°C (80.2°F) in August to a still warm 23.5°C (74.3°F). Yamoto's September nights exhibit a subtle drop in temperature, averaging at a refreshing 19.3°C (66.7°F), closely aligned with the daytime highs.Humidity
In September, the average relative humidity is 79%.Rainfall
In Yamoto, Japan, in September, it is raining for 15.1 days, with typically 85mm (3.35") of accumulated precipitation. Throughout the year, there are 151.7 rainfall days, and 846mm (33.31") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Yamoto.Daylight
In September, the average length of the day in Yamoto is 12h and 27min.On the first day of September, sunrise is at 05:04 and sunset at 18:05. On the last day of the month, sunrise is at 05:30 and sunset at 17:20 JST.
Sunshine
In Yamoto, the average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Yamoto, Japan, is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are September temperatures in Yamoto?
What is the average humidity in September in Yamoto?
How many days does it rain in September in Yamoto?
When it does not snow in Yamoto?
How many hours of daylight does Yamoto have in September?
When is the sunrise / sunset in September in Yamoto?
How long on average sun shines in September in Yamoto?
What is the UV index reading in September in Yamoto?
Average temperature in September
Yamoto, Japan
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (0.3°C).
Average pressure in September
Yamoto, Japan
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The months with the lowest atmospheric pressure are June and July (1009.4mbar).
Average wind speed in September
Yamoto, Japan
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in September
Yamoto, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Yamoto, Japan
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (29mm).
Average rainfall days in September
Yamoto, Japan
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (6.6 days).
Average snowfall in September
Yamoto, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (57mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Yamoto, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Yamoto, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is May (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Yamoto, Japan
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Yamoto, 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, March, November and December (UV index 2).
Average cloud cover in September
Yamoto, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are May and November (Cloud cover 38).
Average visibility in September
Yamoto, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
Yamoto, Japan
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