September weather forecastUtashinai, Japan
September
Weather in September
September, the first month of the autumn in Utashinai, is still a pleasant month, with an average temperature varying between 20.4°C (68.7°F) and 11.1°C (52°F).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 24.4°C (75.9°F) to an agreeable 20.4°C (68.7°F). The average low-temperature of 11.1°C (52°F) is witnessed in Utashinai during September.Humidity
In September, the average relative humidity in Utashinai is 84%.Rainfall
In September, the rain falls for 14.6 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Utashinai, Japan, during the entire year, the rain falls for 120.7 days and collects up to 404mm (15.91") of precipitation.Snowfall
May through September are months without snowfall in Utashinai.Daylight
In Utashinai, the average length of the day in September is 12h and 31min.On the first day of September in Utashinai, Japan, sunrise is at 04:55 and sunset at 18:07. On the last day of the month, sunrise is at 05:28 and sunset at 17:15 JST.
Sunshine
The average sunshine in September in Utashinai is 7.2h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Utashinai, Japan
- Average high temperature in September: 20.4°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-4.1°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Utashinai, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1015.7mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Utashinai, Japan
- Average wind speed in September: 8.2km/h
The windiest months (with the highest average wind speed) are April and December (10.8km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Utashinai, Japan
- Average humidity in September: 84%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Utashinai, Japan
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is August (69mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in September
Utashinai, Japan
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is January (2 days).
Average snowfall in September
Utashinai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (227mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Utashinai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Utashinai, Japan
- Average daylight in September: 12h and 30min
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 12min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Utashinai, Japan
- Average sunshine days in September: 13 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (7.8 days).
Average UV index in September
Utashinai, Japan
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Utashinai, Japan
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in September
Utashinai, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).





