September weather forecastAshoro, Japan

September

Weather in September

September, the first month of the autumn in Ashoro, is still a pleasant month, with temperature in the range of an average low of 11°C (51.8°F) and an average high of 20.5°C (68.9°F).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's warm 24.5°C (76.1°F) to an agreeable 20.5°C (68.9°F). The average temperature during September nights dips to a fresh 11°C (51.8°F).

Humidity

In September, the average relative humidity is 83%.

Rainfall

In Ashoro, during September, the rain falls for 14 days and regularly aggregates up to 69mm (2.72") of precipitation. Throughout the year, there are 177.1 rainfall days, and 628mm (24.72") of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Ashoro, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 04:50 and sunset at 18:01. On the last day of the month, sunrise is at 05:22 and sunset at 17:09 JST.

Sunshine

In Ashoro, the average sunshine in September is 7.4h.

UV index

In Ashoro, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. To protect against the Sun's most potent rays, avoid direct exposure around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

An average high-temperature, in September, in Ashoro, is 20.5°C (68.9°F) and the average low-temperature is 11°C (51.8°F).

The average relative humidity in September is 83%.

In September, the rain falls for 14 days. Throughout September, 69mm (2.72") of precipitation is accumulated.

In Ashoro, snow does not fall in June through October.

In Ashoro, the average day length in September is 12h and 31min.

On the first day of September, sunrise is at 04:50 and sunset at 18:01. On the last day of the month, sunrise is at 05:22 and sunset at 17:09 JST.

The average sunshine duration in September is 7.4h.

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ashoro, Japan

  • Average high temperature in September: 20.5°C

The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (-4.3°C).

  • Average low temperature in September: 11°C

The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-12.7°C).

Average pressure in September
Ashoro, Japan

  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is October (1015.8mbar).
The month with the lowest atmospheric pressure is July (1009.1mbar).

Average wind speed in September
Ashoro, Japan

  • Average wind speed in September: 7.1km/h

The windiest months (with the highest average wind speed) are April and December (9.9km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).

Average humidity in September
Ashoro, Japan

  • Average humidity in September: 83%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (74%).

Average rainfall in September
Ashoro, Japan

  • Average rainfall in September: 69mm

The wettest month (with the highest rainfall) is August (86mm).
The driest month (with the least rainfall) is January (27mm).

Average rainfall days in September
Ashoro, Japan

  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is October (10.5 days).

Average snowfall in September
Ashoro, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (207mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in September
Ashoro, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Ashoro, Japan

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is May (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in September
Ashoro, Japan

  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (5.9 days).

Average UV index in September
Ashoro, 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, October, November and December (UV index 2).

Average cloud cover in September
Ashoro, Japan

  • Average cloud cover in September: 45

The month with the most cloud cover is July (Cloud cover 54).
The months with the least cloud cover are October and November (Cloud cover 33).

Average visibility in September
Ashoro, Japan

  • Average visibility in September: 7km

The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February, March, June, July, August and September (7km).