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
September
Weather in September
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a tropical 31.4°C (88.5°F) in August to a moderately hot 26.9°C (80.4°F). The mean low-temperature during September nights in Tsukubamirai is a pleasant 20.8°C (69.4°F).Humidity
In Tsukubamirai, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 15.2 days. Throughout September, 53mm (2.09") of precipitation is accumulated. In Tsukubamirai, during the entire year, the rain falls for 152.6 days and collects up to 457mm (17.99") of precipitation.Snowfall
April through December are months without snowfall.Daylight
In Tsukubamirai, 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 05:34 and sunset at 17:25 JST.
Sunshine
The average sunshine in September is 7.5h.UV index
In Tsukubamirai, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Tsukubamirai have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Tsukubamirai have in September?
What is the UV index reading in September?
Average temperature in September
Tsukubamirai, Japan
- Average high temperature in September: 26.9°C
The warmest month (with the highest average high temperature) is August (31.4°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Tsukubamirai, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Tsukubamirai, Japan
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is April (13.5km/h).
The calmest month (with the lowest average wind speed) is November (10.2km/h).
Average humidity in September
Tsukubamirai, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Tsukubamirai, Japan
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is October (59mm).
The driest month (with the least rainfall) is January (18mm).
Average rainfall days in September
Tsukubamirai, Japan
- Average rainfall days in September: 15.2 days
The months with the highest number of rainy days are June and October (15.5 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
Tsukubamirai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Tsukubamirai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Tsukubamirai, 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 48min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Tsukubamirai, Japan
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Tsukubamirai, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Tsukubamirai, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is June (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Tsukubamirai, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
