September weather forecastKitamachi, Japan

September

Weather in September

September, the first month of the autumn in Kitamachi, is still a warm month, with an average temperature fluctuating between 20.9°C (69.6°F) and 27.5°C (81.5°F).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a hot 31.9°C (89.4°F) to a warm 27.5°C (81.5°F). An average temperature of 20.9°C (69.6°F) is recorded in Kitamachi during the nights in September.

Heat index

For most parts of September, the heat index is computed to be a hot 30°C (86°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Kitamachi, in September, it is raining for 14 days, with typically 74mm (2.91") of accumulated precipitation. In Kitamachi, during the entire year, the rain falls for 138 days and collects up to 580mm (22.83") of precipitation.

Snowfall

April through October and December are months without snowfall.

Daylight

In Kitamachi, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 05:13 and sunset at 18:09. On the last day of September, in Kitamachi, sunrise is at 05:35 and sunset at 17:26 JST.

Sunshine

The average sunshine in September is 7.8h.

UV index

In September, the average daily maximum UV index in Kitamachi is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

In Kitamachi, in September, the average high-temperature is 27.5°C (81.5°F), and the average low-temperature is 20.9°C (69.6°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 30°C (86°F).

In September, the average relative humidity in Kitamachi, Japan, is 73%.

In Kitamachi, in September, during 14 rainfall days, 74mm (2.91") of precipitation is typically accumulated.

In Kitamachi, Japan, snow does not fall in April through October and December.

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

On the first day of September in Kitamachi, sunrise is at 05:13 and sunset at 18:09. On the last day of the month, sunrise is at 05:35 and sunset at 17:26 JST.

In September, the average sunshine duration is 7.8h.

In Kitamachi, Japan, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high 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
Kitamachi, Japan

  • Average high temperature in September: 27.5°C

The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.5°C).

  • Average low temperature in September: 20.9°C

The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average pressure in September
Kitamachi, Japan

  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in September
Kitamachi, Japan

  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is April (12.6km/h).
The calmest month (with the lowest average wind speed) is November (9.7km/h).

Average humidity in September
Kitamachi, Japan

  • Average humidity in September: 73%

The month with the highest relative humidity is July (75%).
The month with the lowest relative humidity is January (59%).

Average rainfall in September
Kitamachi, Japan

  • Average rainfall in September: 74mm

The wettest month (with the highest rainfall) is October (79mm).
The driest month (with the least rainfall) is December (19mm).

Average rainfall days in September
Kitamachi, Japan

  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in September
Kitamachi, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

Average snowfall days in September
Kitamachi, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

Average daylight in September /
Average sunshine in September
Kitamachi, 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: 6h and 0min).

Average sunshine days in September
Kitamachi, Japan

  • Average sunshine days in September: 12.6 days

The month with the most sunshine days is January (26 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in September
Kitamachi, 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 January (UV index 2).

Average cloud cover in September
Kitamachi, Japan

  • Average cloud cover in September: 41

The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 26).

Average visibility in September
Kitamachi, Japan

  • Average visibility in September: 9km

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