September weather forecastNirasaki, Japan
September
Weather in September
September, the first month of the autumn in Nirasaki, is also a moderately hot month, with an average temperature ranging between min 13.5°C (56.3°F) and max 23.1°C (73.6°F).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a warm 27.5°C (81.5°F) in August to a still moderately hot 23.1°C (73.6°F). An average low-temperature of 13.5°C (56.3°F) is noted during the nights in September.Humidity
The months with the highest humidity in Nirasaki are July and September, with an average relative humidity of 83%.Rainfall
In Nirasaki, during September, the rain falls for 19.7 days and regularly aggregates up to 106mm (4.17") of precipitation. Throughout the year, there are 212.1 rainfall days, and 1152mm (45.35") of precipitation is accumulated.Snowfall
May through November are months without snowfall in Nirasaki, Japan.Daylight
In Nirasaki, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:18 and sunset at 18:14. On the last day of the month, sunrise is at 05:40 and sunset at 17:31 JST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Nirasaki, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nirasaki, Japan
- Average high temperature in September: 23.1°C
The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).
Average pressure in September
Nirasaki, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Nirasaki, Japan
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is January (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Nirasaki, Japan
- Average humidity in September: 83%
The months with the highest relative humidity are July and September (83%).
The month with the lowest relative humidity is January (69%).
Average rainfall in September
Nirasaki, Japan
- Average rainfall in September: 106mm
The wettest month (with the highest rainfall) is October (170mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Nirasaki, Japan
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is January (11.3 days).
Average snowfall in September
Nirasaki, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (88mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Nirasaki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Nirasaki, 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 6min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Nirasaki, Japan
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is December (15.4 days).
The month with the least sunshine days is June (4 days).
Average UV index in September
Nirasaki, 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 2).
Average cloud cover in September
Nirasaki, Japan
- Average cloud cover in September: 47
The months with the most cloud cover are June and July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility in September
Nirasaki, Japan
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, November and December (9km).
The month with the lowest visibility is September (7km).
