September weather forecastKashihara, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Kashihara, Japan, with an average temperature varying between 19.6°C (67.3°F) and 27.1°C (80.8°F).Temperature
As September arrives, Kashihara's weather displays a minor decrease in high-temperatures, transitioning from August's tropical 31.5°C (88.7°F) to a moderately hot 27.1°C (80.8°F). Kashihara witnesses a consistent average low-temperature of 19.6°C (67.3°F) throughout September.Heat index
For most parts of September, the heat index is calculated to be a hot 30°C (86°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In September, the average relative humidity is 76%.Rainfall
In September, in Kashihara, Japan, the rain falls for 15.1 days. Throughout September, 78mm (3.07") of precipitation is accumulated. In Kashihara, during the entire year, the rain falls for 177.4 days and collects up to 831mm (32.72") of precipitation.Snowfall
In Kashihara, snow does not fall in April through November.Daylight
In Kashihara, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:30 and sunset at 18:23. On the last day of the month, sunrise is at 05:50 and sunset at 17:42 JST.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kashihara, Japan
- Average high temperature in September: 27.1°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 19.6°C
The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Kashihara, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is February (1019.6mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in September
Kashihara, Japan
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is January (10.1km/h).
The calmest month (with the lowest average wind speed) is June (7.1km/h).
Average humidity in September
Kashihara, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (78%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall in September
Kashihara, Japan
- Average rainfall in September: 78mm
The wettest month (with the highest rainfall) is July (146mm).
The driest month (with the least rainfall) is November (37mm).
Average rainfall days in September
Kashihara, Japan
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (11.8 days).
Average snowfall in September
Kashihara, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kashihara, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 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
Kashihara, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in September
Kashihara, Japan
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Kashihara, 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
Kashihara, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Kashihara, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





