September weather forecastIna, Japan
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Ina, Japan, with temperature in the range of an average low of 11.4°C (52.5°F) and an average high of 22.3°C (72.1°F).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 26.3°C (79.3°F) in August to an agreeable 22.3°C (72.1°F). An average low-temperature of 11.4°C (52.5°F) is recorded during the nights in September in Ina.Humidity
In September, the average relative humidity is 83%.Rainfall
In Ina, in September, it is raining for 19 days, with typically 88mm (3.46") of accumulated precipitation. Throughout the year, in Ina, there are 186.6 rainfall days, and 1159mm (45.63") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Ina.Daylight
In Ina, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:20 and sunset at 18:16. On the last day of September, in Ina, sunrise is at 05:42 and sunset at 17:33 JST.
Sunshine
In Ina, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ina, Japan
- Average high temperature in September: 22.3°C
The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (0.1°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).
Average pressure in September
Ina, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Ina, Japan
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Ina, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Ina, Japan
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is July (236mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Ina, Japan
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is August (26.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Ina, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (115mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ina, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ina, 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 24min
The month with the most sunshine is May (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Ina, Japan
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are July and August (2.9 days).
Average UV index in September
Ina, Japan
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ina, Japan
- Average cloud cover in September: 47
The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in September
Ina, Japan
- Average visibility in September: 7km
The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are July, August and September (7km).





