September weather forecast
Hiji, Japan

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Hiji, Japan, with an average temperature varying between 18.4°C (65.1°F) and 25.6°C (78.1°F).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from 29.9°C (85.8°F) in August to a still warm 25.6°C (78.1°F). Throughout the September nights, Hiji encounters a low-temperature of 18.4°C (65.1°F).

Humidity

In Hiji, the average relative humidity in September is 83%.

Rainfall

In Hiji, in September, during 16.6 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Hiji, during the entire year, the rain falls for 164.8 days and collects up to 676mm (26.61") of precipitation.

Snowfall

In Hiji, snow does not fall in April through November.

Sea temperature

In Hiji, in September, the average water temperature is 26°C (78.8°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In Hiji, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 05:48 and sunset at 18:39. On the last day of the month, sunrise is at 06:07 and sunset at 18:00 JST.

Sunshine

The average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.
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Frequently asked questions

What are September temperatures in Hiji?

Hiji in September has an average high-temperature of 25.6°C (78.1°F) and an average low-temperature of 18.4°C (65.1°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 38°C (100.4°F).

What is the average humidity in September in Hiji?

The average relative humidity in September in Hiji is 83%.

How much does it rain in Hiji in September?

In September, in Hiji, Japan, the rain falls for 16.6 days. Throughout September, 66mm (2.6") of precipitation is accumulated.

When it does not snow in Hiji?

April through November are months without snowfall.

How warm is the water in September in Hiji?

In Hiji, in September, the average water temperature is 26°C (78.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Hiji?

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

When is the sunrise / sunset in September in Hiji?

On the first day of September in Hiji, sunrise is at 05:48 and sunset at 18:39. On the last day of the month, sunrise is at 06:07 and sunset at 18:00 JST.

How many hours of sunshine does Hiji have in September?

The average sunshine duration in September is 8.2h.

What is the UV index reading in September in Hiji?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
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
Hiji, Japan

Average temperature in September - Hiji, Japan
  • Average high temperature in September: 25.6°C

The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (8°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).

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Average pressure in September
Hiji, Japan

Average pressure in September - Hiji, Japan
  • Average pressure in September: 1012.2mbar

The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).

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Average wind speed in September
Hiji, Japan

Average wind speed in September - Hiji, Japan
  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest months (with the lowest average wind speed) are June and July (6.2km/h).

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Average humidity in September
Hiji, Japan

Average humidity in September - Hiji, Japan
  • Average humidity in September: 83%

The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are March, April and May (74%).

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Average rainfall in September
Hiji, Japan

Average rainfall in September - Hiji, Japan
  • Average rainfall in September: 66mm

The wettest month (with the highest rainfall) is July (117mm).
The driest month (with the least rainfall) is January (24mm).

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Average rainfall days in September
Hiji, Japan

Average rainfall days in September - Hiji, Japan
  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in September
Hiji, Japan

Average snowfall in September - Hiji, 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).

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Average snowfall days in September
Hiji, Japan

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

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in September
Hiji, Japan

Average sea temperature in September - Hiji, Japan
  • Average sea temperature in September: 26°C

The best month for swimming (with the highest average sea temperature) is August (26.9°C).
The coldest month (with the lowest average sea temperature) is February (13.5°C).

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

Average daylight in September / Average sunshine in September - Hiji, Japan
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in September
Hiji, Japan

Average sunshine days in September - Hiji, Japan
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is July (6.3 days).

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Average UV index in September
Hiji, Japan

Average UV index in September - Hiji, 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 and December (UV index 2).

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Average cloud cover in September
Hiji, Japan

Average cloud cover in September - Hiji, Japan
  • Average cloud cover in September: 44

The month with the most cloud cover is June (Cloud cover 52).
The months with the least cloud cover are May, August and November (Cloud cover 37).

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Average visibility in September
Hiji, Japan

Average visibility in September - Hiji, Japan
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, August, October, November and December (9km).
The month with the lowest visibility is June (7km).

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Hiji, Japan

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