September weather forecast
Kanegusuku, Japan

September

Weather in September

The first month of the autumn, September, is still a warm month in Kanegusuku, Japan, with an average temperature varying between 27°C (80.6°F) and 28.5°C (83.3°F).

Temperature

Kanegusuku's weather in September indicates an average high-temperature of a still moderately hot 28.5°C (83.3°F), nearly consistent with the 29.3°C (84.7°F) of August. Night temperatures in September in Kanegusuku exhibit a subtle decrease, settling at an average of 27°C (80.6°F).

Heat index

In September, the heat index is appraised at a tropical 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. 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. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in September in Kanegusuku is 78%.

Rainfall

In Kanegusuku, Japan, in September, it is raining for 19.8 days, with typically 127mm (5") of accumulated precipitation. In Kanegusuku, Japan, during the entire year, the rain falls for 214.7 days and collects up to 1105mm (43.5") of precipitation.

Daylight

In September, the average length of the day in Kanegusuku is 12h and 19min.
On the first day of September in Kanegusuku, sunrise is at 06:09 and sunset at 18:48. On the last day of the month, sunrise is at 06:21 and sunset at 18:16 JST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The months with the highest UV index in Kanegusuku are June through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

How hot does it get in Kanegusuku in September?
During September, Kanegusuku experiences an average high-temperature of 28.5°C (83.3°F) and a low-temperature of 27°C (80.6°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 33°C (91.4°F).
What is the average humidity in September in Kanegusuku?
In September, the average relative humidity in Kanegusuku, Japan, is 78%.
How many days does it rain in September in Kanegusuku?
In Kanegusuku, in September, it is raining for 19.8 days, with typically 127mm (5") of accumulated precipitation.
How many hours of daylight does Kanegusuku have in September?
The average day length in September in Kanegusuku is 12h and 19min.
What time are sunrise and sunset in September in Kanegusuku?
On the first day of September in Kanegusuku, Japan, sunrise is at 06:09 and sunset at 18:48. On the last day of the month, sunrise is at 06:21 and sunset at 18:16 JST.
How long on average sun shines in September in Kanegusuku?
In Kanegusuku, Japan, the average sunshine duration in September is 8.3h.
When is the highest UV index in Kanegusuku?
The months with the highest UV index in Kanegusuku, Japan, are June through September, with an average maximum UV index of 7.
How high is the UV index in September in Kanegusuku?
The average daily maximum UV index in September in Kanegusuku is 7. A UV Index estimate of 6 to 7 represents a high 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Kanegusuku, Japan
Average temperature in September
Kanegusuku, Japan
  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (18.8°C).

  • Average low temperature in September: 27°C

The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).

Average pressure in September - Kanegusuku, Japan
Average pressure in September
Kanegusuku, Japan
  • Average pressure in September: 1009.1mbar

The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is August (1006.4mbar).

Average wind speed in September - Kanegusuku, Japan
Average wind speed in September
Kanegusuku, Japan
  • Average wind speed in September: 24.5km/h

The windiest month (with the highest average wind speed) is December (30.9km/h).
The calmest month (with the lowest average wind speed) is May (21.6km/h).

Average humidity in September - Kanegusuku, Japan
Average humidity in September
Kanegusuku, Japan
  • Average humidity in September: 78%

The month with the highest relative humidity is June (86%).
The months with the lowest relative humidity are January and December (73%).

Average rainfall in September - Kanegusuku, Japan
Average rainfall in September
Kanegusuku, Japan
  • Average rainfall in September: 127mm

The wettest month (with the highest rainfall) is August (153mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in September - Kanegusuku, Japan
Average rainfall days in September
Kanegusuku, Japan
  • Average rainfall days in September: 19.8 days

The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is March (15.7 days).

Average daylight in September / Average sunshine in September - Kanegusuku, Japan
Average daylight in September /
Average sunshine in September
Kanegusuku, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).

Average sunshine days in September - Kanegusuku, Japan
Average sunshine days in September
Kanegusuku, Japan
  • Average sunshine days in September: 6.7 days

The months with the most sunshine days are March and April (11.3 days).
The month with the least sunshine days is September (6.7 days).

Average UV index in September - Kanegusuku, Japan
Average UV index in September
Kanegusuku, 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 - Kanegusuku, Japan
Average cloud cover in September
Kanegusuku, Japan
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in September - Kanegusuku, Japan
Average visibility in September
Kanegusuku, Japan
  • Average visibility in September: 10km

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

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