September weather forecastSuzuka, Japan
September
Weather in September
September, the first month of the autumn in Suzuka, is also a moderately hot month, with an average temperature fluctuating between 19.4°C (66.9°F) and 26.8°C (80.2°F).Temperature
A modest decline in the average high-temperature is seen during September, decreasing from a hot 31.3°C (88.3°F) in August to a warm 26.8°C (80.2°F). During the month of September, the nighttime temperature in Suzuka falls to an average of 19.4°C (66.9°F).Humidity
In Suzuka, the average relative humidity in September is 79%.Rainfall
In Suzuka, in September, during 13.9 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Suzuka, during the entire year, the rain falls for 128.5 days and collects up to 380mm (14.96") of precipitation.Snowfall
In Suzuka, snow does not fall in April through November.Sea temperature
In September, the average sea temperature in Suzuka is 25.9°C (78.6°F).Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.
Daylight
In Suzuka, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:26 and sunset at 18:20. On the last day of the month, sunrise is at 05:47 and sunset at 17:39 JST.
Sunshine
In Suzuka, the average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Suzuka, Japan
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Suzuka, Japan
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in September
Suzuka, Japan
- Average wind speed in September: 7.6km/h
The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is July (6.6km/h).
Average humidity in September
Suzuka, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Suzuka, Japan
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is July (74mm).
The driest months (with the least rainfall) are January and November (9mm).
Average rainfall days in September
Suzuka, Japan
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6 days).
Average snowfall in September
Suzuka, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Suzuka, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Suzuka, Japan
- Average sea temperature in September: 25.9°C
The best month for swimming (with the highest average sea temperature) is August (27.1°C).
The coldest months (with the lowest average sea temperature) are February and March (14.6°C).
Average daylight in September /
Average sunshine in September
Suzuka, Japan
- Average daylight in September: 12h and 24min
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 54min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Suzuka, Japan
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
Suzuka, 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 2).
Average cloud cover in September
Suzuka, Japan
- Average cloud cover in September: 46
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is November (Cloud cover 36).
Average visibility in September
Suzuka, Japan
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, November and December (9km).
The month with the lowest visibility is July (7km).





