September weather forecastRifu, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Rifu, Japan, with an average temperature ranging between max 24°C (75.2°F) and min 18.3°C (64.9°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's moderately hot 27.7°C (81.9°F) to a still warm 24°C (75.2°F). During September, the average low-temperature is an enjoyable 18.3°C (64.9°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Rifu, in September, it is raining for 12.5 days, with typically 74mm (2.91") of accumulated precipitation. Throughout the year, there are 133.1 rainfall days, and 706mm (27.8") of precipitation is accumulated.Snowfall
May through November are months without snowfall.Daylight
In Rifu, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 05:05 and sunset at 18:06. On the last day of September, sunrise is at 05:31 and sunset at 17:21 JST.
Sunshine
In September, the average sunshine is 7.6h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rifu, Japan
- Average high temperature in September: 24°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1°C).
Average pressure in September
Rifu, Japan
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in September
Rifu, Japan
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is July (9km/h).
Average humidity in September
Rifu, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Rifu, Japan
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Rifu, Japan
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Rifu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Rifu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Rifu, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Rifu, Japan
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is May (21.3 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in September
Rifu, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
Rifu, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are May and November (Cloud cover 36).
Average visibility in September
Rifu, Japan
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, October, November and December (10km).
The months with the lowest visibility are January, May, June, July, August and September (9km).
