September weather forecastKanamachi, Japan

September weather for Kanamachi, Japan: September, the first month of the autumn in Kanamachi, is also a moderately hot month, with an average temperature fluctuating between 21.1°C (70°F) and 27°C (80.6°F). On the first day of September in Kanamachi, Japan, sunrise is at 05:12 and sunset at 18:08.

September

Weather in September

September, the first month of the autumn in Kanamachi, is also a moderately hot month, with an average temperature fluctuating between 21.1°C (70°F) and 27°C (80.6°F).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a tropical 31.3°C (88.3°F) to a warm 27°C (80.6°F). Kanamachi anticipates an average minimum temperature of 21.1°C (70°F) in the month of September.

Heat index

The heat index for September is computed to be 29°C (84.2°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

The average relative humidity in September in Kanamachi is 74%.

Rainfall

In Kanamachi, during September, the rain falls for 18 days and regularly aggregates up to 119mm (4.69") of precipitation. Throughout the year, there are 182.2 rainfall days, and 953mm (37.52") of precipitation is accumulated.

Snowfall

In Kanamachi, snow does not fall in April through December.

Daylight

The average length of the day in September in Kanamachi is 12h and 25min.
On the first day of September in Kanamachi, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:26 JST.

Sunshine

The average sunshine in September in Kanamachi is 7.8h.

UV index

In Kanamachi, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

In September, in Kanamachi, the average high-temperature is 27°C (80.6°F), and the average low-temperature is 21.1°C (70°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 29°C (84.2°F).

In Kanamachi, Japan, the average relative humidity in September is 74%.

In Kanamachi, Japan, in September, during 18 rainfall days, 119mm (4.69") of precipitation is typically accumulated.

April through December are months without snowfall in Kanamachi.

In September, the average day length in Kanamachi is 12h and 25min.

On the first day of September in Kanamachi, Japan, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:26 JST.

In Kanamachi, the average sunshine duration in September is 7.8h.

In Kanamachi, Japan, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Kanamachi, Japan

  • Average high temperature in September: 27°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in September: 21.1°C

The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).

Average pressure in September
Kanamachi, Japan

  • Average pressure in September: 1013.5mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in September
Kanamachi, Japan

  • Average wind speed in September: 11.3km/h

The windiest month (with the highest average wind speed) is April (14.2km/h).
The calmest month (with the lowest average wind speed) is November (11km/h).

Average humidity in September
Kanamachi, Japan

  • Average humidity in September: 74%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (60%).

Average rainfall in September
Kanamachi, Japan

  • Average rainfall in September: 119mm

The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are January and December (40mm).

Average rainfall days in September
Kanamachi, Japan

  • Average rainfall days in September: 18 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Kanamachi, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (43mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Kanamachi, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Kanamachi, 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 48min).

  • Average sunshine in September: 7h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in September
Kanamachi, Japan

  • Average sunshine days in September: 8 days

The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is June (7.7 days).

Average UV index in September
Kanamachi, Japan

  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September
Kanamachi, Japan

  • Average cloud cover in September: 40

The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 27).

Average visibility in September
Kanamachi, Japan

  • Average visibility in September: 9km

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