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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 30.3°C (86.5°F) in August to a warm 26.4°C (79.5°F). Shisui maintains a near steady average temperature of 21.8°C (71.2°F) during the nights of September, demonstrating little drop from daytime highs.Humidity
In September, the average relative humidity in Shisui is 77%.Rainfall
In Shisui, during September, the rain falls for 10.4 days and regularly aggregates up to 24mm (0.94") of precipitation. In Shisui, during the entire year, the rain falls for 110.2 days and collects up to 221mm (8.7") of precipitation.Snowfall
In Shisui, snow does not fall in March through December.Daylight
The average length of the day in September in Shisui is 12h and 25min.On the first day of September in Shisui, Japan, sunrise is at 05:11 and sunset at 18:06. On the last day of the month, sunrise is at 05:33 and sunset at 17:24 JST.
Sunshine
In September, the average sunshine is 7.7h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 6 in September transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Shisui?
What is the average humidity in September in Shisui?
How much does it rain in Shisui in September?
When it does not snow in Shisui?
What is the average length of the day in September in Shisui?
What time are sunrise and sunset in September in Shisui?
How many hours of sunshine does Shisui have in September?
What is the UV index reading in September in Shisui?
Average temperature in September
Shisui, Japan
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (9.1°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.7°C).
Average pressure in September
Shisui, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Shisui, Japan
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is March (16.5km/h).
The calmest month (with the lowest average wind speed) is June (12.7km/h).
Average humidity in September
Shisui, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Shisui, Japan
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is October (29mm).
The driest month (with the least rainfall) is January (9mm).
Average rainfall days in September
Shisui, Japan
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is October (11.4 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Shisui, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Shisui, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Shisui, 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 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Shisui, Japan
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is October (15.6 days).
Average UV index in September
Shisui, Japan
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 3).
Average cloud cover in September
Shisui, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Shisui, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
