September weather forecast
Abu, Japan

September

Weather in September

September, the first month of the autumn in Abu, is also a moderately hot month, with an average temperature varying between 28.7°C (83.7°F) and 26.8°C (80.2°F).

Temperature

September's commencement is accompanied by an average high-temperature of a still moderately hot 28.7°C (83.7°F), diverging marginally from August's 29.4°C (84.9°F). Abu maintains a consistent average nighttime low-temperature of 26.8°C (80.2°F) throughout September.

Heat index

September's heat index is estimated at a hot 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In September, the rain falls for 20.8 days. Throughout September, 155mm (6.1") of precipitation is accumulated. In Abu, during the entire year, the rain falls for 229.8 days and collects up to 1512mm (59.53") of precipitation.

Daylight

The average length of the day in September in Abu is 12h and 19min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:47. On the last day of September, in Abu, sunrise is at 06:19 and sunset at 18:15 JST.

Sunshine

In Abu, the average sunshine in September is 8.1h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

How hot does it get in Abu in September?
September temperatures in Abu, Japan, vary between a high-temperature of 28.7°C (83.7°F) and a low-temperature of 26.8°C (80.2°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 34°C (93.2°F).
What is the average humidity in September in Abu?
The average relative humidity in September is 79%.
How much does it rain in Abu in September?
In September, the rain falls for 20.8 days. Throughout September, 155mm (6.1") of precipitation is accumulated.
What is the average length of the day in September in Abu?
In Abu, the average day length in September is 12h and 19min.
When is the sunrise / sunset in September in Abu?
On the first day of September in Abu, sunrise is at 06:07 and sunset at 18:47. On the last day of the month, sunrise is at 06:19 and sunset at 18:15 JST.
How many hours of sunshine does Abu have in September?
The average sunshine duration in September in Abu, Japan, is 8.1h.
When is the highest UV index in Abu?
June through September, with an average maximum UV index of 7, are months with the highest UV index in Abu.
How high is the UV index in September in Abu?
The average daily maximum UV index in September in Abu is 7. A UV Index of 6 to 7 symbolizes a high 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Abu, Japan
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.6°C).

  • Average low temperature in September: 26.8°C

The month with the highest average low temperature is August (27.8°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).

Average pressure in September
Abu, Japan
  • Average pressure in September: 1009.1mbar

The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is August (1006.7mbar).

Average wind speed in September
Abu, Japan
  • Average wind speed in September: 20.9km/h

The windiest month (with the highest average wind speed) is December (25.7km/h).
The calmest month (with the lowest average wind speed) is May (18.4km/h).

Average humidity in September
Abu, Japan
  • Average humidity in September: 79%

The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).

Average rainfall in September
Abu, Japan
  • Average rainfall in September: 155mm

The wettest month (with the highest rainfall) is June (228mm).
The driest month (with the least rainfall) is January (63mm).

Average rainfall days in September
Abu, Japan
  • Average rainfall days in September: 20.8 days

The month with the highest number of rainy days is June (22.6 days).
The month with the least rainy days is November (16.2 days).

Average daylight in September /
Average sunshine in September
Abu, Japan
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Abu, Japan
  • Average sunshine days in September: 5.9 days

The month with the most sunshine days is May (11.1 days).
The month with the least sunshine days is June (5.4 days).

Average UV index in September
Abu, Japan
  • Average UV index in September: 7

The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Abu, Japan
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in September
Abu, Japan
  • Average visibility in September: 10km

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

englishespañol中文
Share