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
The beginning of September brings a minor change in the average high-temperature, shifting from a hot 31.6°C (88.9°F) in August to a warm 26.9°C (80.4°F). During the nights in September, the temperature averages to a refreshing 19.8°C (67.6°F).Humidity
In Kamioshima, the average relative humidity in September is 76%.Rainfall
In Kamioshima, in September, during 17.7 rainfall days, 105mm (4.13") of precipitation is typically accumulated. In Kamioshima, during the entire year, the rain falls for 162.4 days and collects up to 866mm (34.09") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 05:11 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Sunshine
The average sunshine in September is 7.7h.UV index
In Kamioshima, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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 many days does it rain in September?
When it does not snow?
How many hours of daylight does Kamioshima have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Kamioshima?
What is the UV index reading in September?
Average temperature in September
Kamioshima, Japan
- Average high temperature in September: 26.9°C
The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 19.8°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 (0.8°C).
Average pressure in September
Kamioshima, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in September
Kamioshima, Japan
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is April (11.1km/h).
The calmest month (with the lowest average wind speed) is November (8.2km/h).
Average humidity in September
Kamioshima, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Kamioshima, Japan
- Average rainfall in September: 105mm
The wettest month (with the highest rainfall) is October (117mm).
The driest months (with the least rainfall) are February and December (27mm).
Average rainfall days in September
Kamioshima, Japan
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (21.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Kamioshima, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (55mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Kamioshima, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Kamioshima, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in September
Kamioshima, Japan
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in September
Kamioshima, 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
Kamioshima, Japan
- Average cloud cover in September: 41
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 27).
Average visibility in September
Kamioshima, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
