September weather forecastKomagane, Japan

September

Weather in September

September, the first month of the autumn in Komagane, is still a pleasant month, with an average temperature fluctuating between 11.4°C (52.5°F) and 22.3°C (72.1°F).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a moderately hot 26.3°C (79.3°F) to a pleasant 22.3°C (72.1°F). Komagane, during the month of September, experiences an average low-temperature of 11.4°C (52.5°F).

Humidity

In Komagane, the average relative humidity in September is 83%.

Rainfall

In Komagane, Japan, in September, during 19 rainfall days, 88mm (3.46") of precipitation is typically accumulated. In Komagane, Japan, during the entire year, the rain falls for 186.6 days and collects up to 1159mm (45.63") of precipitation.

Snowfall

May through October are months without snowfall in Komagane.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 05:20 and sunset at 18:16. On the last day of September, sunrise is at 05:42 and sunset at 17:33 JST.

Sunshine

In Komagane, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 4 during September translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

In September, in Komagane, the average high-temperature is 22.3°C (72.1°F), and the average low-temperature is 11.4°C (52.5°F).

The average relative humidity in September is 83%.

In Komagane, Japan, in September, it is raining for 19 days, with typically 88mm (3.46") of accumulated precipitation.

May through October are months without snowfall in Komagane, Japan.

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

In September, on the first day of the month, sunrise is at 05:20 and sunset at 18:16. On the last day of the month, sunrise is at 05:42 and sunset at 17:33 JST.

The average sunshine duration in September is 8.4h.

In September, the average daily maximum UV index in Komagane, Japan, is 4. A UV Index reading of 3 to 5 represents a medium health risk 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Komagane, Japan

  • Average high temperature in September: 22.3°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (0.1°C).

  • Average low temperature in September: 11.4°C

The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).

Average pressure in September
Komagane, Japan

  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in September
Komagane, Japan

  • Average wind speed in September: 6.2km/h

The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).

Average humidity in September
Komagane, Japan

  • Average humidity in September: 83%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).

Average rainfall in September
Komagane, Japan

  • Average rainfall in September: 88mm

The wettest month (with the highest rainfall) is July (236mm).
The driest month (with the least rainfall) is January (37mm).

Average rainfall days in September
Komagane, Japan

  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is August (26.1 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Komagane, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (115mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Komagane, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Komagane, 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 24min

The month with the most sunshine is May (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

Average sunshine days in September
Komagane, Japan

  • Average sunshine days in September: 8.8 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are July and August (2.9 days).

Average UV index in September
Komagane, Japan

  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Komagane, Japan

  • Average cloud cover in September: 47

The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 30).

Average visibility in September
Komagane, Japan

  • Average visibility in September: 7km

The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are July, August and September (7km).