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 the advent of September, Susami's high-temperatures adjust to a still warm 25.8°C (78.4°F), closely aligning with the preceding month. Susami observes a consistent average low-temperature of 22°C (71.6°F) throughout September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Susami, during September, the rain falls for 17.5 days and regularly aggregates up to 160mm (6.3") of precipitation. In Susami, during the entire year, the rain falls for 172.3 days and collects up to 1363mm (53.66") of precipitation.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 05:32 and sunset at 18:23. On the last day of September, sunrise is at 05:51 and sunset at 17:44 JST.
Sunshine
The average sunshine in September is 9.3h.UV index
In Susami, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Susami have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Susami have in September?
What is the UV index reading in September?
Average temperature in September
Susami, Japan
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 22°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in September
Susami, Japan
- Average pressure in September: 1012.2mbar
The months with the highest atmospheric pressure are January and February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in September
Susami, Japan
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is January (21.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in September
Susami, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is January (70%).
Average rainfall in September
Susami, Japan
- Average rainfall in September: 160mm
The wettest month (with the highest rainfall) is July (226mm).
The driest month (with the least rainfall) is January (41mm).
Average rainfall days in September
Susami, Japan
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Susami, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Susami, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Susami, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Susami, Japan
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is August (5.5 days).
Average UV index in September
Susami, 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, February and December (UV index 3).
Average cloud cover in September
Susami, Japan
- Average cloud cover in September: 34
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is November (Cloud cover 29).
Average visibility in September
Susami, 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).
