September weather forecastOwase, Japan

September

Weather in September

September, the first month of the autumn in Owase, is still a warm month, with temperature in the range of an average high of 27.7°C (81.9°F) and an average low of 20.3°C (68.5°F).

Temperature

August's transformation into September witnesses an average high-temperature of a warm 27.7°C (81.9°F), noting a minor change from the preceding month. In the month of September, Owase witnesses a consistent average low-temperature of 20.3°C (68.5°F).

Heat index

September's heat index is estimated at a tropical 31°C (87.8°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The average relative humidity in September in Owase, Japan, is 79%.

Rainfall

The month with the most rainfall is September, when the rain falls for 14.9 days and typically aggregates up to 692mm (27.24") of precipitation.

Sea temperature

In September, the average sea temperature in Owase, Japan, is 26.4°C (79.5°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In Owase, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 05:28 and sunset at 18:21. On the last day of September, sunrise is at 05:49 and sunset at 17:41 JST.

Sunshine

In Owase, the average sunshine in September is 4.4h.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Owase, is 27.7°C (81.9°F), while the low-temperature averages to 20.3°C (68.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 31°C (87.8°F).

In Owase, the average relative humidity in September is 79%.

September is the month with the most rainfall in Owase, Japan. Rain falls for 14.9 days and accumulates 692mm (27.24") of precipitation.

In Owase, in September, it is raining for 14.9 days, with typically 692mm (27.24") of accumulated precipitation.

In Owase, the average seawater temperature in September is 26.4°C (79.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

The average day length in September is 12h and 23min.

In September, on the first day of the month, sunrise is at 05:28 and sunset at 18:21. On the last day of the month, in Owase, Japan, sunrise is at 05:49 and sunset at 17:41 JST.

In Owase, the average sunshine duration in September is 4.4h.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

30.4°C

27.7°C

23°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

13.3

14.9

12.1

Average sea temperature

Average daylight

Average sunshine

Average temperature in September
Owase, Japan

Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is August (30.4°C).
The month with the lowest average high temperature is January (11.3°C).

Average low temperature in September: 20.3°C

The month with the highest average low temperature is August (23.1°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).

Average humidity in September
Owase, Japan

Average humidity in September: 79%

The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are January and February (60%).

Average rainfall in September
Owase, Japan

Average rainfall in September: 691.9mm

The wettest month (with the highest rainfall) is September (691.9mm).
The driest month (with the least rainfall) is January (100.7mm).

Average rainfall days in September
Owase, Japan

Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is December (5.8 days).

Average sea temperature in September
Owase, Japan

Average sea temperature in September: 26.4°C

The best month for swimming (with the highest average sea temperature) is August (27.3°C).
The coldest month (with the lowest average sea temperature) is February (15.5°C).

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

Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

Average sunshine in September: 4h and 24min

The month with the most sunshine is April (Average sunshine: 6h and 6min).
The month with the least sunshine is June (Average sunshine: 4h and 18min).