September weather forecastAimoto, Japan

September

Weather in September

September, the first month of the autumn in Aimoto, is also a moderately hot month, with an average temperature varying between 26°C (78.8°F) and 18.2°C (64.8°F).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a hot 30.7°C (87.3°F) in August to a warm 26°C (78.8°F). Nighttime temperature in Aimoto lowers to an average of 18.2°C (64.8°F) in September.

Humidity

In Aimoto, the average relative humidity in September is 82%.

Rainfall

In Aimoto, in September, it is raining for 12.5 days, with typically 36mm (1.42") of accumulated precipitation. In Aimoto, Japan, during the entire year, the rain falls for 131.4 days and collects up to 393mm (15.47") of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Aimoto is 12h and 24min.
On the first day of September in Aimoto, Japan, sunrise is at 05:32 and sunset at 18:26. On the last day of the month, sunrise is at 05:53 and sunset at 17:45 JST.

Sunshine

In September, the average sunshine in Aimoto is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

The average high-temperature and low-temperature in Aimoto, Japan, during September are 26°C (78.8°F) and 18.2°C (64.8°F) respectively. In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 40°C (104°F).

In Aimoto, Japan, the average relative humidity in September is 82%.

In Aimoto, in September, during 12.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated.

In Aimoto, Japan, snow does not fall in April through November.

In September, the average day length in Aimoto is 12h and 24min.

On the first day of September in Aimoto, Japan, sunrise is at 05:32 and sunset at 18:26. On the last day of the month, sunrise is at 05:53 and sunset at 17:45 JST.

In September, the average sunshine duration in Aimoto, Japan, is 8.5h.

In September, the average daily maximum UV index in Aimoto, Japan, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
Aimoto, Japan

  • Average high temperature in September: 26°C

The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in September: 18.2°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).

Average pressure in September
Aimoto, Japan

  • Average pressure in September: 1012.8mbar

The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).

Average wind speed in September
Aimoto, Japan

  • Average wind speed in September: 8.1km/h

The windiest month (with the highest average wind speed) is March (9.8km/h).
The calmest month (with the lowest average wind speed) is June (7.5km/h).

Average humidity in September
Aimoto, Japan

  • Average humidity in September: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is May (75%).

Average rainfall in September
Aimoto, Japan

  • Average rainfall in September: 36mm

The wettest month (with the highest rainfall) is July (88mm).
The driest months (with the least rainfall) are January and November (9mm).

Average rainfall days in September
Aimoto, Japan

  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in September
Aimoto, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Aimoto, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Aimoto, Japan

  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in September
Aimoto, 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
Aimoto, Japan

  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in September
Aimoto, Japan

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).