September weather forecastTomiya, Japan

September weather for Tomiya, Japan: September, the first month of the autumn in Tomiya, is still a warm month, with temperature in the range of an average low of 17.5°C (63.5°F) and an average high of 23.9°C (75°F). In Tomiya, Japan, in September, it is raining for 12.9 days, with typically 66mm (2.6") of accumulated precipitation.

September

Weather in September

September, the first month of the autumn in Tomiya, is still a warm month, with temperature in the range of an average low of 17.5°C (63.5°F) and an average high of 23.9°C (75°F).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 27.8°C (82°F) to a still warm 23.9°C (75°F). Tomiya experiences an average nighttime temperature of 17.5°C (63.5°F) in the month of September.

Humidity

In Tomiya, the average relative humidity in September is 80%.

Rainfall

In Tomiya, during September, the rain falls for 12.9 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, there are 152.2 rainfall days, and 720mm (28.35") of precipitation is accumulated.

Snowfall

May through November are months without snowfall.

Daylight

In September, the average length of the day in Tomiya is 12h and 27min.
On the first day of the month, sunrise is at 05:05 and sunset at 18:06. On the last day of September, sunrise is at 05:31 and sunset at 17:21 JST.

Sunshine

In September, the average sunshine is 7.7h.

UV index

The average daily maximum UV index in September in Tomiya is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 in September translates into these instructions:
Make use of precautions - It is urged to ward off sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

During September, Tomiya experiences an average high-temperature of 23.9°C (75°F) and a low-temperature of 17.5°C (63.5°F). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 32°C (89.6°F).

The average relative humidity in September in Tomiya, Japan, is 80%.

In Tomiya, Japan, in September, it is raining for 12.9 days, with typically 66mm (2.6") of accumulated precipitation.

In Tomiya, Japan, snow does not fall in May through November.

The average day length in September is 12h and 27min.

On the first day of September, sunrise is at 05:05 and sunset at 18:06. On the last day of the month, sunrise is at 05:31 and sunset at 17:21 JST.

In Tomiya, the average sunshine duration in September is 7.7h.

The average daily maximum UV index in September in Tomiya is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Tomiya, Japan

  • Average high temperature in September: 23.9°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 17.5°C

The month with the highest average low temperature is August (21.4°C).
The coldest months (with the lowest average low temperature) are January and February (-1.7°C).

Average pressure in September
Tomiya, Japan

  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

Average wind speed in September
Tomiya, Japan

  • Average wind speed in September: 9.7km/h

The windiest month (with the highest average wind speed) is January (14.4km/h).
The calmest month (with the lowest average wind speed) is July (8.1km/h).

Average humidity in September
Tomiya, Japan

  • Average humidity in September: 80%

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
Tomiya, Japan

  • Average rainfall in September: 66mm

The wettest months (with the highest rainfall) are July and October (111mm).
The driest month (with the least rainfall) is February (22mm).

Average rainfall days in September
Tomiya, Japan

  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in September
Tomiya, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (63mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Tomiya, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Tomiya, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in September
Tomiya, Japan

  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in September
Tomiya, Japan

  • Average UV index in September: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Tomiya, Japan

  • Average cloud cover in September: 40

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is May (Cloud cover 36).

Average visibility in September
Tomiya, Japan

  • Average visibility in September: 9km

The months with the highest visibility are October, November and December (10km).
The month with the lowest visibility is July (8km).