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
With the arrival of September, Chiryu notices a mild change in the average high-temperature, sliding from August's hot 32.5°C (90.5°F) to a warm 28°C (82.4°F). Chiryu's temperature lowers to a mean of 20.7°C (69.3°F) during the nights in September.Heat index
The heat index for September is appraised at a tropical 31°C (87.8°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Chiryu, the average relative humidity in September is 74%.Rainfall
In Chiryu, during September, the rain falls for 13.5 days and regularly aggregates up to 94mm (3.7") of precipitation. Throughout the year, in Chiryu, Japan, there are 142.7 rainfall days, and 863mm (33.98") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
In Chiryu, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:24 and sunset at 18:18. On the last day of September, sunrise is at 05:45 and sunset at 17:37 JST.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
How hot is September in Chiryu?
What is the average humidity in September in Chiryu?
How many days does it rain in September in Chiryu?
When it does not snow in Chiryu?
What is the average length of the day in September in Chiryu?
What time are sunrise and sunset in September in Chiryu?
How long on average sun shines in September in Chiryu?
How high is the UV index in September in Chiryu?
Average temperature in September
Chiryu, Japan
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is August (32.5°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Chiryu, Japan
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Chiryu, Japan
- Average wind speed in September: 9.1km/h
The windiest months (with the highest average wind speed) are January and February (11.8km/h).
The calmest months (with the lowest average wind speed) are June and July (8.6km/h).
Average humidity in September
Chiryu, Japan
- Average humidity in September: 74%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is February (68%).
Average rainfall in September
Chiryu, Japan
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is July (165mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in September
Chiryu, Japan
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Chiryu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Chiryu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.6 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
Chiryu, Japan
- Average daylight in September: 12h and 2min
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 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Chiryu, Japan
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Chiryu, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Chiryu, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is July (Cloud cover 46).
The month with the least cloud cover is November (Cloud cover 33).
Average visibility in September
Chiryu, Japan
- Average visibility in September: 9km
The month with the highest visibility is February (10km).
The month with the lowest visibility is July (8km).
Chiryu, Japan
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