September weather forecastTsuwano, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Tsuwano, Japan, with an average temperature fluctuating between 19.2°C (66.6°F) and 24.3°C (75.7°F).Temperature
September's onset introduces a mild reduction in the average high-temperature, from 28.2°C (82.8°F) in August to a still warm 24.3°C (75.7°F). In September, Tsuwano reports a consistent average low-temperature of 19.2°C (66.6°F) during the nights.Humidity
In Tsuwano, Japan, the average relative humidity in September is 82%.Rainfall
In Tsuwano, during September, the rain falls for 18.5 days and regularly aggregates up to 124mm (4.88") of precipitation. In Tsuwano, during the entire year, the rain falls for 209.9 days and collects up to 1304mm (51.34") of precipitation.Snowfall
April through October are months without snowfall in Tsuwano.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:46 and sunset at 18:39. On the last day of the month, sunrise is at 06:06 and sunset at 17:58 JST.
Sunshine
In Tsuwano, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Tsuwano is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tsuwano, Japan
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (28.2°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 19.2°C
The month with the highest average low temperature is August (22.8°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).
Average pressure in September
Tsuwano, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Tsuwano, Japan
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (15.6km/h).
The calmest month (with the lowest average wind speed) is June (8.8km/h).
Average humidity in September
Tsuwano, Japan
- Average humidity in September: 82%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (74%).
Average rainfall in September
Tsuwano, Japan
- Average rainfall in September: 124mm
The wettest month (with the highest rainfall) is July (236mm).
The driest month (with the least rainfall) is November (56mm).
Average rainfall days in September
Tsuwano, Japan
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is May (12.9 days).
Average snowfall in September
Tsuwano, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (74mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Tsuwano, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Tsuwano, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Tsuwano, Japan
- Average sunshine days in September: 8.9 days
The month with the most sunshine days is May (15.7 days).
The month with the least sunshine days is July (4.8 days).
Average UV index in September
Tsuwano, 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, February and December (UV index 2).
Average cloud cover in September
Tsuwano, Japan
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are May and August (Cloud cover 35).
Average visibility in September
Tsuwano, Japan
- Average visibility in September: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is July (8km).
