September weather forecast
Nakaza, Japan

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Nakaza, Japan, with an average temperature fluctuating between 27.3°C (81.1°F) and 28.5°C (83.3°F).

Temperature

The start of September marks an average high-temperature of a still moderately hot 28.5°C (83.3°F), hardly distinguishable from the conditions in August. Nakaza's nighttime temperatures in September see a subtle dip to an average of 27.3°C (81.1°F).

Heat index

During September, the heat index is evaluated at a tropical 33°C (91.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

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

Rainfall

In Nakaza, in September, during 20.1 rainfall days, 139mm (5.47") of precipitation is typically accumulated. Throughout the year, in Nakaza, there are 227.4 rainfall days, and 1405mm (55.31") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September in Nakaza, 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

The average sunshine in September in Nakaza is 8.4h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

Is it hot in Nakaza during September?
The high-temperature, in September, in Nakaza, is 28.5°C (83.3°F), while the low-temperature averages to 27.3°C (81.1°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 33°C (91.4°F).
What is the average humidity in September in Nakaza?
In September, the average relative humidity in Nakaza is 79%.
How much does it rain in Nakaza in September?
In September, the rain falls for 20.1 days. Throughout September, 139mm (5.47") of precipitation is accumulated.
What is the average length of the day in September in Nakaza?
In September, the average day length is 12h and 19min.
When is the sunrise / sunset in September in Nakaza?
In September, on the first day of the month, sunrise is at 06:09 and sunset at 18:48. On the last day of the month, in Nakaza, sunrise is at 06:21 and sunset at 18:16 JST.
How long on average sun shines in September in Nakaza?
In September, the average sunshine duration is 8.4h.
What is the month with the highest UV index in Nakaza?
The months with the highest UV index are June through September, with an average maximum UV index of 7.
What is the UV index intensity in September in Nakaza?
In Nakaza, the average daily maximum UV index in September 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 - Nakaza, Japan
Average temperature in September
Nakaza, Japan
  • Average high temperature in September: 28.5°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 (18.9°C).

  • Average low temperature in September: 27.3°C

The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

Average pressure in September - Nakaza, Japan
Average pressure in September
Nakaza, Japan
  • Average pressure in September: 1009mbar

The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

Average wind speed in September - Nakaza, Japan
Average wind speed in September
Nakaza, Japan
  • Average wind speed in September: 22.9km/h

The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).

Average humidity in September - Nakaza, Japan
Average humidity in September
Nakaza, Japan
  • Average humidity in September: 79%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).

Average rainfall in September - Nakaza, Japan
Average rainfall in September
Nakaza, Japan
  • Average rainfall in September: 139mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).

Average rainfall days in September - Nakaza, Japan
Average rainfall days in September
Nakaza, Japan
  • Average rainfall days in September: 20.1 days

The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).

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

The month with the longest days is June (Average daylight: 13h and 42min).
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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September - Nakaza, Japan
Average sunshine days in September
Nakaza, Japan
  • Average sunshine days in September: 7.3 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).

Average UV index in September - Nakaza, Japan
Average UV index in September
Nakaza, Japan
  • Average UV index in September: 7

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

Average cloud cover in September - Nakaza, Japan
Average cloud cover in September
Nakaza, Japan
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September - Nakaza, Japan
Average visibility in September
Nakaza, 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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