September weather forecastSengendai, Japan
September
Weather in September
September, the first month of the autumn in Sengendai, is also a moderately hot month, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 26.5°C (79.7°F).Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a moderately hot 29.8°C (85.6°F) to a still warm 26.5°C (79.7°F). Sengendai's September nights exhibit a subtle drop in temperature, averaging at a pleasant 22.1°C (71.8°F), closely aligned with the daytime highs.Humidity
The average relative humidity in September is 75%.Rainfall
In September, the rain falls for 15.8 days. Throughout September, 116mm (4.57") of precipitation is accumulated. Throughout the year, there are 161.3 rainfall days, and 896mm (35.28") of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
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 05:35 and sunset at 17:27 JST.
Sunshine
In Sengendai, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To guard against the harmful effects of the Sun, minimize exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sengendai, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in September
Sengendai, Japan
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Sengendai, Japan
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is June (14.2km/h).
Average humidity in September
Sengendai, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Sengendai, Japan
- Average rainfall in September: 116mm
The wettest month (with the highest rainfall) is October (126mm).
The driest month (with the least rainfall) is December (40mm).
Average rainfall days in September
Sengendai, Japan
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Sengendai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Sengendai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 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
Sengendai, 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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Sengendai, Japan
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (11.6 days).
Average UV index in September
Sengendai, 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, February, March and December (UV index 3).
Average cloud cover in September
Sengendai, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Sengendai, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
