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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 29.3°C (84.7°F) in August to a still warm 25.6°C (78.1°F). During the nights of September, Shomachi maintains an almost steady temperature with an average low of 21.4°C (70.5°F).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 14.7 days. Throughout September, 65mm (2.56") of precipitation is accumulated. Throughout the year, there are 145.9 rainfall days, and 560mm (22.05") of precipitation is accumulated.Snowfall
In Shomachi, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 05:35 and sunset at 18:28. On the last day of September, sunrise is at 05:55 and sunset at 17:48 JST.
Sunshine
In Shomachi, Japan, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Shomachi?
What is the average humidity in September in Shomachi?
How much does it rain in Shomachi in September?
When it does not snow in Shomachi?
What is the average length of the day in September in Shomachi?
What time are sunrise and sunset in September in Shomachi?
How many hours of sunshine does Shomachi have in September?
What is the UV index reading in September in Shomachi?
Average temperature in September
Shomachi, Japan
- Average high temperature in September: 25.6°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 21.4°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure in September
Shomachi, Japan
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is January (1020mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).
Average wind speed in September
Shomachi, Japan
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is January (19.3km/h).
The calmest month (with the lowest average wind speed) is June (10.1km/h).
Average humidity in September
Shomachi, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is January (69%).
Average rainfall in September
Shomachi, Japan
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is July (89mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Shomachi, Japan
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Shomachi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Shomachi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Shomachi, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 0min
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 42min).
Average sunshine days in September
Shomachi, Japan
- Average sunshine days in September: 13 days
The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Shomachi, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Shomachi, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is June (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Shomachi, 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).
