September weather forecastKotsubo, Japan
September
Weather in September
September, the first month of the autumn in Kotsubo, is still a warm month, with an average temperature fluctuating between 21.7°C (71.1°F) and 26.2°C (79.2°F).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's 29.8°C (85.6°F) to a still moderately hot 26.2°C (79.2°F). Throughout September in Kotsubo, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 21.7°C (71.1°F).Humidity
The average relative humidity in September in Kotsubo is 75%.Rainfall
In Kotsubo, in September, during 11.1 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, in Kotsubo, there are 129.4 rainfall days, and 351mm (13.82") of precipitation is accumulated.Snowfall
In Kotsubo, snow does not fall in April through December.Daylight
In September, the average length of the day in Kotsubo is 12h and 25min.On the first day of the month, sunrise is at 05:14 and sunset at 18:09. On the last day of September, sunrise is at 05:35 and sunset at 17:27 JST.
Sunshine
The average sunshine in September is 8.2h.UV index
In Kotsubo, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kotsubo, Japan
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 21.7°C
The month with the highest average low temperature is August (25.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).
Average pressure in September
Kotsubo, Japan
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Kotsubo, Japan
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is March (17.4km/h).
The calmest month (with the lowest average wind speed) is June (13.9km/h).
Average humidity in September
Kotsubo, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Kotsubo, Japan
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in September
Kotsubo, Japan
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (6.1 days).
Average snowfall in September
Kotsubo, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Kotsubo, 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
Kotsubo, 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 48min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Kotsubo, Japan
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Kotsubo, 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
Kotsubo, Japan
- Average cloud cover in September: 38
The months with the most cloud cover are March and October (Cloud cover 43).
The months with the least cloud cover are January and December (Cloud cover 29).
Average visibility in September
Kotsubo, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
