September weather forecast
Sukuta, Japan

September

Weather in September

September, the first month of the autumn in Sukuta, is still a warm month, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 26.8°C (80.2°F).

Temperature

September's advent notes a subtle adjustment in average high-temperature to a still warm 28.7°C (83.7°F) from August. September nights witness a mild cool down to an average low of 26.8°C (80.2°F).

Heat index

The heat index value for September is evaluated at a tropical 34°C (93.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Sukuta, Japan, in September, it is raining for 20.8 days, with typically 155mm (6.1") of accumulated precipitation. In Sukuta, Japan, 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 is 12h and 19min.
On the first day of September, sunrise is at 06:07 and sunset at 18:48. On the last day of the month, sunrise is at 06:20 and sunset at 18:15 JST.

Sunshine

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

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index in Sukuta. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during September leads to these advisories:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

Is it hot in Sukuta during September?
The high-temperature, in September, in Sukuta, records 28.7°C (83.7°F), while the low-temperature is 26.8°C (80.2°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 34°C (93.2°F).
What is the average humidity in September in Sukuta?
In September, the average relative humidity in Sukuta is 79%.
How many days does it rain in September in Sukuta?
In Sukuta, in September, during 20.8 rainfall days, 155mm (6.1") of precipitation is typically accumulated.
How many hours of daylight does Sukuta have in September?
In September, the average day length in Sukuta is 12h and 19min.
When are sunrise and sunset in September in Sukuta?
On the first day of September in Sukuta, Japan, sunrise is at 06:07 and sunset at 18:48. On the last day of the month, sunrise is at 06:20 and sunset at 18:15 JST.
How long on average sun shines in September in Sukuta?
In September, the average sunshine duration in Sukuta, Japan, is 8.1h.
What is the month with the highest UV index in Sukuta?
June through September, with an average maximum UV index of 7, are months with the highest UV index.
How high is the UV index in September in Sukuta?
In Sukuta, Japan, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 - Sukuta, Japan
Average temperature in September
Sukuta, 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 - Sukuta, Japan
Average pressure in September
Sukuta, 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 - Sukuta, Japan
Average wind speed in September
Sukuta, 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 - Sukuta, Japan
Average humidity in September
Sukuta, 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 - Sukuta, Japan
Average rainfall in September
Sukuta, 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 - Sukuta, Japan
Average rainfall days in September
Sukuta, 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 - Sukuta, Japan
Average daylight in September /
Average sunshine in September
Sukuta, 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 - Sukuta, Japan
Average sunshine days in September
Sukuta, 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 - Sukuta, Japan
Average UV index in September
Sukuta, 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 - Sukuta, Japan
Average cloud cover in September
Sukuta, 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 - Sukuta, Japan
Average visibility in September
Sukuta, 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).

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