September weather forecastKawatana, Japan

September

Weather in September

September, the first month of the autumn in Kawatana, is still a warm month, with an average temperature varying between 26.3°C (79.3°F) and 21.7°C (71.1°F).

Temperature

September is characterized by a mild reduction in the average high-temperature, from 29.6°C (85.3°F) in August to a still moderately hot 26.3°C (79.3°F). Registering an almost steady temperature, Kawatana's nights in September see an average low of 21.7°C (71.1°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Kawatana, in September, during 14.8 rainfall days, 80mm (3.15") of precipitation is typically accumulated. In Kawatana, during the entire year, the rain falls for 169.5 days and collects up to 913mm (35.94") of precipitation.

Snowfall

In Kawatana, snow does not fall in March through November.

Daylight

In Kawatana, the average length of the day in September is 12h and 23min.
On the first day of September in Kawatana, sunrise is at 05:55 and sunset at 18:45. On the last day of the month, sunrise is at 06:14 and sunset at 18:06 JST.

Sunshine

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

UV index

In Kawatana, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

The high-temperature, in September, in Kawatana, is 26.3°C (79.3°F), while the low-temperature averages to 21.7°C (71.1°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 37°C (98.6°F).

The average relative humidity in September in Kawatana is 79%.

In September, in Kawatana, the rain falls for 14.8 days. Throughout September, 80mm (3.15") of precipitation is accumulated.

March through November are months without snowfall in Kawatana.

In September, the average day length in Kawatana, Japan, is 12h and 23min.

On the first day of September in Kawatana, sunrise is at 05:55 and sunset at 18:45. On the last day of the month, sunrise is at 06:14 and sunset at 18:06 JST.

In Kawatana, the average sunshine duration in September is 8.1h.

In September, the average daily maximum UV index in Kawatana is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Kawatana, Japan

  • Average high temperature in September: 26.3°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in September: 21.7°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 (5.4°C).

Average pressure in September
Kawatana, Japan

  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008mbar).

Average wind speed in September
Kawatana, Japan

  • Average wind speed in September: 13.6km/h

The windiest months (with the highest average wind speed) are January and December (16.7km/h).
The calmest month (with the lowest average wind speed) is June (10.6km/h).

Average humidity in September
Kawatana, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Kawatana, Japan

  • Average rainfall in September: 80mm

The wettest month (with the highest rainfall) is July (192mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in September
Kawatana, Japan

  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (9.5 days).

Average snowfall in September
Kawatana, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Kawatana, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.6 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
Kawatana, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).

Average sunshine days in September
Kawatana, Japan

  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is May (20.2 days).
The months with the least sunshine days are July and December (9.5 days).

Average UV index in September
Kawatana, Japan

  • Average UV index in September: 6

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

Average cloud cover in September
Kawatana, Japan

  • Average cloud cover in September: 39

The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).

Average visibility in September
Kawatana, Japan

  • Average visibility in September: 10km

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