September weather forecastMorowa, Japan

September

Weather in September

The first month of the autumn, September, is still a warm month in Morowa, Japan, with an average temperature varying between 19.8°C (67.6°F) and 27.9°C (82.2°F).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from a tropical 32.5°C (90.5°F) in August to a warm 27.9°C (82.2°F). Morowa records an average low-temperature of 19.8°C (67.6°F) throughout the month of September.

Heat index

In September, the heat index is calculated to be a tropical 31°C (87.8°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Morowa, during September, the rain falls for 14.1 days and regularly aggregates up to 119mm (4.69") of precipitation. Throughout the year, in Morowa, Japan, there are 157.7 rainfall days, and 1112mm (43.78") of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Morowa.

Daylight

The average length of the day in September in Morowa is 12h and 25min.
On the first day of September, sunrise is at 05:24 and sunset at 18:18. On the last day of the month, sunrise is at 05:45 and sunset at 17:37 JST.

Sunshine

In September, the average sunshine in Morowa, Japan, is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

The high-temperature, in September, in Morowa, is 27.9°C (82.2°F), while the low-temperature averages to 19.8°C (67.6°F). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 31°C (87.8°F).

The average relative humidity in September in Morowa, Japan, is 74%.

In Morowa, Japan, in September, it is raining for 14.1 days, with typically 119mm (4.69") of accumulated precipitation.

In Morowa, Japan, snow does not fall in April through November.

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

On the first day of September in Morowa, sunrise is at 05:24 and sunset at 18:18. On the last day of the month, sunrise is at 05:45 and sunset at 17:37 JST.

The average sunshine duration in September in Morowa, Japan, is 8.8h.

In September, the average daily maximum UV index in Morowa is 5. A UV Index reading of 3 to 5 represents 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Morowa, Japan

  • Average high temperature in September: 27.9°C

The warmest month (with the highest average high temperature) is August (32.5°C).
The month with the lowest average high temperature is January (7.5°C).

  • Average low temperature in September: 19.8°C

The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).

Average pressure in September
Morowa, Japan

  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in September
Morowa, Japan

  • Average wind speed in September: 8km/h

The windiest month (with the highest average wind speed) is March (10.2km/h).
The calmest months (with the lowest average wind speed) are June and July (7.7km/h).

Average humidity in September
Morowa, Japan

  • Average humidity in September: 74%

The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is May (68%).

Average rainfall in September
Morowa, Japan

  • Average rainfall in September: 119mm

The wettest month (with the highest rainfall) is July (195mm).
The driest month (with the least rainfall) is January (34mm).

Average rainfall days in September
Morowa, Japan

  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in September
Morowa, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (26mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Morowa, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Morowa, 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 48min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in September
Morowa, Japan

  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in September
Morowa, Japan

  • Average UV index in September: 5

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Morowa, Japan

  • Average cloud cover in September: 36

The month with the most cloud cover is July (Cloud cover 44).
The month with the least cloud cover is November (Cloud cover 31).

Average visibility in September
Morowa, Japan

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).