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
A moderate decline in average high-temperatures is noted in September, moving from a warm 26°C (78.8°F) in August to an agreeable 21.7°C (71.1°F). September's average low-temperature reading in Kuroishi settles at a moderate 14°C (57.2°F).Humidity
In September, the average relative humidity in Kuroishi is 83%.Rainfall
In Kuroishi, in September, it is raining for 17.6 days, with typically 81mm (3.19") of accumulated precipitation. Throughout the year, there are 161.1 rainfall days, and 986mm (38.82") of precipitation is accumulated.Snowfall
In Kuroishi, Japan, snow does not fall in May through September.Daylight
In September, the average length of the day in Kuroishi, Japan, is 12h and 29min.On the first day of September, sunrise is at 05:04 and sunset at 18:10. On the last day of the month, sunrise is at 05:33 and sunset at 17:21 JST.
Sunshine
In September, the average sunshine in Kuroishi, Japan, is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What are September temperatures in Kuroishi?
What is the average humidity in September in Kuroishi?
How much does it rain in Kuroishi in September?
When it does not snow in Kuroishi?
Does it snow in Kuroishi in September?
What is the average length of the day in September in Kuroishi?
When is the sunrise / sunset in September in Kuroishi?
How many hours of sunshine does Kuroishi have in September?
How high is the UV index in September in Kuroishi?
Average temperature in September
Kuroishi, Japan
- Average high temperature in September: 21.7°C
The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in September: 14°C
The month with the highest average low temperature is August (18.2°C).
The coldest month (with the lowest average low temperature) is February (-6.6°C).
Average pressure in September
Kuroishi, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1017.5mbar).
The month with the lowest atmospheric pressure is July (1008.9mbar).
Average wind speed in September
Kuroishi, Japan
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is July (8.2km/h).
Average humidity in September
Kuroishi, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Kuroishi, Japan
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is July (120mm).
The driest month (with the least rainfall) is May (52mm).
Average rainfall days in September
Kuroishi, Japan
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Kuroishi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (562mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Kuroishi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (26.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kuroishi, Japan
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 5min
The months with the most sunshine are May and August (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Kuroishi, Japan
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is May (15.3 days).
The month with the least sunshine days is January (3.7 days).
Average UV index in September
Kuroishi, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Kuroishi, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are May and September (Cloud cover 42).
Average visibility in September
Kuroishi, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February, July and August (7km).
Kuroishi, Japan
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