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
The onset of September marks an average high-temperature of a still warm 25.8°C (78.4°F), hardly differing from August's 28.3°C (82.9°F). Nighttime temperatures in Susami during September report a consistent average of 22°C (71.6°F).Humidity
The average relative humidity in September in Susami 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, Japan, during the entire year, the rain falls for 172.3 days and collects up to 1363mm (53.66") of precipitation.Snowfall
In Susami, snow does not fall in March through November.Daylight
In September, the average length of the day in Susami 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
In September, the average sunshine in Susami, Japan, is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 in September translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the usual temperature for Susami in September?
What is the average humidity in September in Susami?
How much does it rain in Susami in September?
When it does not snow in Susami?
How many hours of daylight does Susami have in September?
What time are sunrise and sunset in September in Susami?
How many hours of sunshine does Susami have in September?
What is the UV index reading in September in Susami?
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).
Susami, Japan
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