Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a warm 23.9°C (75°F) in August to a pleasant 20.3°C (68.5°F). The average temperature in Rikubetsu drops to a cool 11°C (51.8°F) during the night in the month of September.Humidity
In September, the average relative humidity in Rikubetsu is 82%.Rainfall
In Rikubetsu, during September, the rain falls for 16.3 days and regularly aggregates up to 70mm (2.76") of precipitation. Throughout the year, there are 163 rainfall days, and 723mm (28.46") of precipitation is accumulated.Snowfall
In Rikubetsu, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 04:49 and sunset at 18:00. On the last day of September, in Rikubetsu, sunrise is at 05:21 and sunset at 17:08 JST.
Sunshine
In September, the average sunshine in Rikubetsu is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the average September temperature in Rikubetsu?
What is the average humidity in September in Rikubetsu?
How much does it rain in Rikubetsu in September?
When it does not snow in Rikubetsu?
Does it snow in Rikubetsu in September?
What is the average length of the day in September in Rikubetsu?
What time are sunrise and sunset in September in Rikubetsu?
How many hours of sunshine does Rikubetsu have in September?
What is the UV index intensity in September in Rikubetsu?
Average temperature in September
Rikubetsu, Japan
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (-12.3°C).
Average pressure in September
Rikubetsu, Japan
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is October (1015.4mbar).
The month with the lowest atmospheric pressure is July (1009.1mbar).
Average wind speed in September
Rikubetsu, Japan
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is April (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in September
Rikubetsu, Japan
- Average humidity in September: 82%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Rikubetsu, Japan
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is August (111mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Rikubetsu, Japan
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Rikubetsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (310mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rikubetsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rikubetsu, Japan
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Rikubetsu, Japan
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is October (13.3 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in September
Rikubetsu, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Rikubetsu, Japan
- Average cloud cover in September: 45
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is October (Cloud cover 39).
Average visibility in September
Rikubetsu, Japan
- Average visibility in September: 8km
The months with the highest visibility are October and November (9km).
The month with the lowest visibility is February (6km).
Rikubetsu, Japan
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