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 shift from August to September involves a decrease in the average high-temperature, dropping from a moderately hot 26.3°C (79.3°F) to an agreeable 21.3°C (70.3°F). Naganohara's average low-temperature during September nights is observed to be a cool 12.8°C (55°F).Humidity
In September, the average relative humidity in Naganohara is 85%.Rainfall
In September, in Naganohara, the rain falls for 20.9 days. Throughout September, 126mm (4.96") of precipitation is accumulated. In Naganohara, during the entire year, the rain falls for 227.8 days and collects up to 1213mm (47.76") of precipitation.Snowfall
May through September are months without snowfall in Naganohara.Daylight
In Naganohara, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:16 and sunset at 18:14. On the last day of the month, sunrise is at 05:39 and sunset at 17:30 JST.
Sunshine
The average sunshine in September is 6.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Adopt protective measures - It is advised to guard against sun damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are September temperatures in Naganohara?
What is the average humidity in September in Naganohara?
How many days does it rain in September in Naganohara?
When it does not snow in Naganohara?
Does it snow in Naganohara in September?
What is the average length of the day in September in Naganohara?
What time are sunrise and sunset in September in Naganohara?
How long on average sun shines in September in Naganohara?
How high is the UV index in September in Naganohara?
Average temperature in September
Naganohara, Japan
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 12.8°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-8.2°C).
Average pressure in September
Naganohara, Japan
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Naganohara, Japan
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is January (9.4km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Naganohara, Japan
- Average humidity in September: 85%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Naganohara, Japan
- Average rainfall in September: 126mm
The wettest month (with the highest rainfall) is July (201mm).
The driest month (with the least rainfall) is December (43mm).
Average rainfall days in September
Naganohara, Japan
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is July (27.8 days).
The month with the least rainy days is February (13.2 days).
Average snowfall in September
Naganohara, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is March (360mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Naganohara, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Naganohara, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Naganohara, Japan
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is November (11.5 days).
The month with the least sunshine days is July (1.9 days).
Average UV index in September
Naganohara, 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, November and December (UV index 2).
Average cloud cover in September
Naganohara, Japan
- Average cloud cover in September: 60
The month with the most cloud cover is September (Cloud cover 60).
The months with the least cloud cover are May and November (Cloud cover 42).
Average visibility in September
Naganohara, Japan
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, November and December (8km).
The months with the lowest visibility are June, July, August, September and October (7km).
Naganohara, Japan
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