September weather forecastImari, Japan

September

Weather in September

The first month of the autumn, September, is still a warm month in Imari, Japan, with an average temperature ranging between max 26.1°C (79°F) and min 21.5°C (70.7°F).

Temperature

September indicates a minor shift in the average high-temperature, from August's moderately hot 29.5°C (85.1°F) to a still warm 26.1°C (79°F). Imari logs an average low-temperature of 21.5°C (70.7°F) during the nights of September, subtly lower than its daytime highs.

Humidity

In September, the average relative humidity in Imari is 79%.

Rainfall

In Imari, in September, during 16.2 rainfall days, 94mm (3.7") of precipitation is typically accumulated. In Imari, Japan, during the entire year, the rain falls for 190.5 days and collects up to 1264mm (49.76") of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:46. On the last day of September, in Imari, Japan, sunrise is at 06:14 and sunset at 18:06 JST.

Sunshine

In September, the average sunshine is 8h.

UV index

In Imari, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 5 in September translates into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

The average high-temperature and low-temperature in Imari, Japan, during September are 26.1°C (79°F) and 21.5°C (70.7°F) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 36°C (96.8°F).

The average relative humidity in September in Imari is 79%.

In Imari, in September, during 16.2 rainfall days, 94mm (3.7") of precipitation is typically accumulated.

In Imari, snow does not fall in April through November.

The average day length in September in Imari, Japan, is 12h and 23min.

In September, on the first day of the month, sunrise is at 05:54 and sunset at 18:46. On the last day of the month, in Imari, sunrise is at 06:14 and sunset at 18:06 JST.

The average sunshine duration in September in Imari, Japan, is 8h.

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Imari, Japan

  • Average high temperature in September: 26.1°C

The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in September: 21.5°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 (4.9°C).

Average pressure in September
Imari, Japan

  • Average pressure in September: 1012mbar

The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008mbar).

Average wind speed in September
Imari, Japan

  • Average wind speed in September: 12.9km/h

The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is June (10km/h).

Average humidity in September
Imari, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Imari, Japan

  • Average rainfall in September: 94mm

The wettest month (with the highest rainfall) is July (239mm).
The driest month (with the least rainfall) is October (58mm).

Average rainfall days in September
Imari, Japan

  • Average rainfall days in September: 16.2 days

The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is May (11.4 days).

Average snowfall in September
Imari, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Imari, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.1 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
Imari, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

Average sunshine days in September
Imari, Japan

  • Average sunshine days in September: 12 days

The month with the most sunshine days is May (18.1 days).
The month with the least sunshine days is July (6.6 days).

Average UV index in September
Imari, 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 and December (UV index 2).

Average cloud cover in September
Imari, Japan

  • Average cloud cover in September: 40

The month with the most cloud cover is December (Cloud cover 52).
The months with the least cloud cover are August and October (Cloud cover 34).

Average visibility in September
Imari, Japan

  • Average visibility in September: 10km

The months with the highest visibility are March, September, October, November and December (10km).
The months with the lowest visibility are January, February, April, May, June, July and August (9km).