September weather forecastGoi, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Goi, Japan, with an average temperature varying between 26.1°C (79°F) and 22.5°C (72.5°F).Temperature
The advent of September brings a slight shift in average high-temperature, moving from a warm 29.2°C (84.6°F) in August to a still moderately hot 26.1°C (79°F). The temperature in Goi during September sees a subtle transition from day to night, averaging a low of 22.5°C (72.5°F).Humidity
In Goi, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 14.2 days. Throughout September, 60mm (2.36") of precipitation is accumulated. Throughout the year, there are 160.4 rainfall days, and 550mm (21.65") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In Goi, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:11 and sunset at 18:07. On the last day of the month, sunrise is at 05:33 and sunset at 17:25 JST.
Sunshine
In September, the average sunshine in Goi is 7.6h.UV index
In September, the average daily maximum UV index in Goi is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Goi, Japan
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is August (25.2°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in September
Goi, Japan
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is November (1017.7mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Goi, Japan
- Average wind speed in September: 16.5km/h
The windiest month (with the highest average wind speed) is March (20.5km/h).
The calmest month (with the lowest average wind speed) is June (15.3km/h).
Average humidity in September
Goi, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (62%).
Average rainfall in September
Goi, Japan
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Goi, Japan
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is October (16.4 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in September
Goi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Goi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Goi, 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 36min
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 0min).
Average sunshine days in September
Goi, Japan
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is May (18.1 days).
The months with the least sunshine days are February and October (11.1 days).
Average UV index in September
Goi, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Goi, Japan
- Average cloud cover in September: 41
The months with the most cloud cover are March, June and October (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Goi, 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).
