September weather forecastBeppu, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Beppu, Japan, with an average temperature fluctuating between 18.4°C (65.1°F) and 25.6°C (78.1°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 25.6°C (78.1°F) from 29.9°C (85.8°F). Throughout September, Beppu's nights cool down to an average of 18.4°C (65.1°F).Humidity
In September, the average relative humidity in Beppu is 83%.Rainfall
In Beppu, in September, during 16.6 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, in Beppu, there are 164.8 rainfall days, and 676mm (26.61") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Beppu.Sea temperature
In September, the average sea temperature is 26°C (78.8°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
In Beppu, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 05:48 and sunset at 18:39. On the last day of September, sunrise is at 06:07 and sunset at 18:00 JST.
Sunshine
The average sunshine in September is 8.2h.UV index
In Beppu, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Beppu, Japan
- Average high temperature in September: 25.6°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (8°C).
- Average low temperature in September: 18.4°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Beppu, Japan
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in September
Beppu, Japan
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest months (with the lowest average wind speed) are June and July (6.2km/h).
Average humidity in September
Beppu, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are March, April and May (74%).
Average rainfall in September
Beppu, Japan
- Average rainfall in September: 66mm
The wettest month (with the highest rainfall) is July (117mm).
The driest month (with the least rainfall) is January (24mm).
Average rainfall days in September
Beppu, Japan
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Beppu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (26mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Beppu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.7 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
Beppu, Japan
- Average sea temperature in September: 26°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 (13.9°C).
Average daylight in September /
Average sunshine in September
Beppu, Japan
- Average daylight in September: 12h and 24min
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: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Beppu, Japan
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in September
Beppu, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Beppu, Japan
- Average cloud cover in September: 44
The month with the most cloud cover is June (Cloud cover 52).
The months with the least cloud cover are May, August and November (Cloud cover 37).
Average visibility in September
Beppu, Japan
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, August, October, November and December (9km).
The month with the lowest visibility is June (7km).
