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
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 32.1°C (89.8°F) in August to a warm 27.3°C (81.1°F). Throughout September, Kisai registers a consistent average low-temperature of 20.1°C (68.2°F).Heat index
During September, the heat index is estimated at a tropical 30°C (86°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September in Kisai, Japan, is 73%.Rainfall
In Kisai, in September, it is raining for 16.4 days, with typically 98mm (3.86") of accumulated precipitation. In Kisai, during the entire year, the rain falls for 161.6 days and collects up to 782mm (30.79") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Kisai, Japan, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:13 and sunset at 18:09. On the last day of September, sunrise is at 05:36 and sunset at 17:27 JST.
Sunshine
The average sunshine in September in Kisai is 7.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Kisai in September?
What is the average humidity in September in Kisai?
How much does it rain in Kisai in September?
When it does not snow in Kisai?
How many hours of daylight does Kisai have in September?
When are sunrise and sunset in September in Kisai?
How long on average sun shines in September in Kisai?
How high is the UV index in September in Kisai?
Average temperature in September
Kisai, Japan
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is August (32.1°C).
The month with the lowest average high temperature is January (8°C).
- Average low temperature in September: 20.1°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in September
Kisai, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Kisai, Japan
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is April (10.9km/h).
The calmest month (with the lowest average wind speed) is November (8.2km/h).
Average humidity in September
Kisai, Japan
- Average humidity in September: 73%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (59%).
Average rainfall in September
Kisai, Japan
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is October (107mm).
The driest month (with the least rainfall) is December (26mm).
Average rainfall days in September
Kisai, Japan
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Kisai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Kisai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Kisai, 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 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The months with the least sunshine are February and November (Average sunshine: 6h and 6min).
Average sunshine days in September
Kisai, Japan
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Kisai, 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 and December (UV index 2).
Average cloud cover in September
Kisai, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in September
Kisai, 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).
