September weather forecast
Kikonai, Japan

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Kikonai, Japan, with temperature in the range of an average high of 21°C (69.8°F) and an average low of 16.4°C (61.5°F).

Temperature

Kikonai experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 24°C (75.2°F) in August to a pleasant 21°C (69.8°F). In Kikonai, September is characterized by an average low-temperature of 16.4°C (61.5°F), indicating a minor drop from daytime highs.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Kikonai, in September, during 16.8 rainfall days, 90mm (3.54") of precipitation is typically accumulated. In Kikonai, during the entire year, the rain falls for 167.3 days and collects up to 892mm (35.12") of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 05:04 and sunset at 18:12. On the last day of September, sunrise is at 05:34 and sunset at 17:22 JST.

Sunshine

The average sunshine in September is 8h.

UV index

In Kikonai, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What are the temperatures in September?
In September, in Kikonai, the average high-temperature is 21°C (69.8°F), and the average low-temperature is 16.4°C (61.5°F).
What is the average humidity in September?
In September, the average relative humidity is 79%.
How many days does it rain in September?
In September, the rain falls for 16.8 days. Throughout September, 90mm (3.54") of precipitation is accumulated.
When it does not snow?
May through October are months without snowfall.
How many hours of daylight does Kikonai have in September?
In Kikonai, the average day length in September is 12h and 29min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:04 and sunset at 18:12. On the last day of the month, sunrise is at 05:34 and sunset at 17:22 JST.
How long on average sun shines in September?
In September, the average sunshine duration is 8h.
How high is the UV index in September?
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Kikonai, Japan
Average temperature in September
Kikonai, Japan
  • Average high temperature in September: 21°C

The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in September: 16.4°C

The month with the highest average low temperature is August (19.1°C).
The coldest month (with the lowest average low temperature) is February (-4.5°C).

Average pressure in September - Kikonai, Japan
Average pressure in September
Kikonai, Japan
  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is November (1017.1mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).

Average wind speed in September - Kikonai, Japan
Average wind speed in September
Kikonai, Japan
  • Average wind speed in September: 13.5km/h

The windiest month (with the highest average wind speed) is December (22.8km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).

Average humidity in September - Kikonai, Japan
Average humidity in September
Kikonai, Japan
  • Average humidity in September: 79%

The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September - Kikonai, Japan
Average rainfall in September
Kikonai, Japan
  • Average rainfall in September: 90mm

The wettest month (with the highest rainfall) is August (104mm).
The driest month (with the least rainfall) is February (54mm).

Average rainfall days in September - Kikonai, Japan
Average rainfall days in September
Kikonai, Japan
  • Average rainfall days in September: 16.8 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in September - Kikonai, Japan
Average snowfall in September
Kikonai, Japan
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (204mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September - Kikonai, Japan
Average snowfall days in September
Kikonai, Japan
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (22 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 - Kikonai, Japan
Average daylight in September /
Average sunshine in September
Kikonai, Japan
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The months with the least sunshine are January and December (Average sunshine: 2h and 18min).

Average sunshine days in September - Kikonai, Japan
Average sunshine days in September
Kikonai, Japan
  • Average sunshine days in September: 9.4 days

The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is December (2.8 days).

Average UV index in September - Kikonai, Japan
Average UV index in September
Kikonai, 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, November and December (UV index 1).

Average cloud cover in September - Kikonai, Japan
Average cloud cover in September
Kikonai, Japan
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in September - Kikonai, Japan
Average visibility in September
Kikonai, Japan
  • Average visibility in September: 9km

The month with the highest visibility is October (10km).
The month with the lowest visibility is December (7km).

englishespañol中文
Share