September weather forecastSenzuya, Japan

September

Weather in September

September, the first month of the autumn in Senzuya, is still a warm month, with temperature in the range of an average low of 20.4°C (68.7°F) and an average high of 25.4°C (77.7°F).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from 29.2°C (84.6°F) in August to a still moderately hot 25.4°C (77.7°F). Senzuya registers an average low-temperature of 20.4°C (68.7°F) throughout September, a modest decrease from its daytime highs.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Senzuya, in September, during 14.8 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Senzuya, during the entire year, the rain falls for 165.4 days and collects up to 524mm (20.63") of precipitation.

Snowfall

April through December are months without snowfall.

Daylight

In Senzuya, the average length of the day in September is 12h and 25min.
On the first day of September in Senzuya, sunrise is at 05:15 and sunset at 18:10. On the last day of the month, sunrise is at 05:36 and sunset at 17:28 JST.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In Senzuya, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

The average high-temperature, in September, in Senzuya, is 25.4°C (77.7°F), while the average low-temperature is 20.4°C (68.7°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is computed to be 35°C (95°F).

In Senzuya, the average relative humidity in September is 78%.

In Senzuya, Japan, in September, it is raining for 14.8 days, with typically 59mm (2.32") of accumulated precipitation.

In Senzuya, Japan, snow does not fall in April through December.

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

In September, on the first day of the month, sunrise is at 05:15 and sunset at 18:10. On the last day of the month, in Senzuya, Japan, sunrise is at 05:36 and sunset at 17:28 JST.

In Senzuya, Japan, the average sunshine duration in September is 8.2h.

The average daily maximum UV index in September in Senzuya is 5. A UV Index reading of 3 to 5 represents a moderate 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 snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Senzuya, Japan

  • Average high temperature in September: 25.4°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in September: 20.4°C

The month with the highest average low temperature is August (24°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

Average pressure in September
Senzuya, Japan

  • Average pressure in September: 1013.3mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in September
Senzuya, Japan

  • Average wind speed in September: 12.6km/h

The windiest months (with the highest average wind speed) are March and April (14.9km/h).
The calmest month (with the lowest average wind speed) is June (12km/h).

Average humidity in September
Senzuya, Japan

  • Average humidity in September: 78%

The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is January (63%).

Average rainfall in September
Senzuya, Japan

  • Average rainfall in September: 59mm

The wettest month (with the highest rainfall) is July (81mm).
The driest months (with the least rainfall) are January and February (19mm).

Average rainfall days in September
Senzuya, Japan

  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is December (7.5 days).

Average snowfall in September
Senzuya, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Senzuya, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 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
Senzuya, 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: 8h and 12min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in September
Senzuya, Japan

  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is December (20.2 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in September
Senzuya, 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
Senzuya, Japan

  • Average cloud cover in September: 38

The month with the most cloud cover is June (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 27).

Average visibility in September
Senzuya, Japan

  • Average visibility in September: 10km

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