September weather forecastGejo, Japan
September
Weather in September
September, the first month of the autumn in Gejo, is still a warm month, with an average temperature fluctuating between 17.5°C (63.5°F) and 25°C (77°F).Temperature
The advent of September brings a slight shift in average high-temperature, moving from 29.8°C (85.6°F) in August to a still warm 25°C (77°F). Gejo's average low-temperature is measured at a comfortable 17.5°C (63.5°F) during September.Humidity
In Gejo, the average relative humidity in September is 77%.Rainfall
In Gejo, during September, the rain falls for 14.8 days and regularly aggregates up to 43mm (1.69") of precipitation. In Gejo, during the entire year, the rain falls for 191.1 days and collects up to 956mm (37.64") of precipitation.Snowfall
In Gejo, snow does not fall in May through October.Daylight
The average length of the day in September in Gejo is 12h and 26min.On the first day of September in Gejo, sunrise is at 05:14 and sunset at 18:13. On the last day of the month, sunrise is at 05:38 and sunset at 17:28 JST.
Sunshine
The average sunshine in September in Gejo is 8.2h.UV index
In September, the average daily maximum UV index in Gejo is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gejo, Japan
- Average high temperature in September: 25°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 (3.2°C).
- Average low temperature in September: 17.5°C
The month with the highest average low temperature is August (21.5°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in September
Gejo, Japan
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Gejo, Japan
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest month (with the lowest average wind speed) is July (7.6km/h).
Average humidity in September
Gejo, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Gejo, Japan
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is December (157mm).
The driest month (with the least rainfall) is May (35mm).
Average rainfall days in September
Gejo, Japan
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is December (20.6 days).
The month with the least rainy days is February (11.2 days).
Average snowfall in September
Gejo, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (659mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Gejo, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.1 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
Gejo, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Gejo, Japan
- Average sunshine days in September: 13 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (2.6 days).
Average UV index in September
Gejo, 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 1).
Average cloud cover in September
Gejo, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Gejo, Japan
- Average visibility in September: 10km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February and December (8km).
