September weather forecast
Ishikawa Higashionna, Japan

September

Weather in September

September, the first month of the autumn in Ishikawa Higashionna, is still a warm month, with an average temperature fluctuating between 27.3°C (81.1°F) and 28.7°C (83.7°F).

Temperature

September's onset brings an average high-temperature of a still warm 28.7°C (83.7°F), showing a minute difference from August's 29.5°C (85.1°F). Nighttime readings during September register a minimal drop from daytime highs, averaging at a still warm 27.3°C (81.1°F).

Heat index

The average heat index in September is computed to be a hot 34°C (93.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. 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 in Ishikawa Higashionna is 79%.

Rainfall

In Ishikawa Higashionna, in September, it is raining for 19.5 days, with typically 131mm (5.16") of accumulated precipitation. Throughout the year, in Ishikawa Higashionna, Japan, there are 228.2 rainfall days, and 1424mm (56.06") of precipitation is accumulated.

Sea temperature

In Ishikawa Higashionna, in September, the average water temperature is 28.3°C (82.9°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

The average length of the day in September in Ishikawa Higashionna is 12h and 19min.
On the first day of the month, sunrise is at 06:08 and sunset at 18:48. On the last day of September, sunrise is at 06:20 and sunset at 18:16 JST.

Sunshine

In September, the average sunshine in Ishikawa Higashionna is 8.5h.

UV index

The months with the highest UV index in Ishikawa Higashionna are June through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Attention! The combination of sand and water reflections enhances UV ray intensity.

Frequently asked questions

How hot is September in Ishikawa Higashionna?
September temperatures in Ishikawa Higashionna, Japan, vary between a high-temperature of 28.7°C (83.7°F) and a low-temperature of 27.3°C (81.1°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 34°C (93.2°F).
What is the average humidity in September in Ishikawa Higashionna?
In September, the average relative humidity in Ishikawa Higashionna, Japan, is 79%.
How much does it rain in Ishikawa Higashionna in September?
In September, the rain falls for 19.5 days. Throughout September, 131mm (5.16") of precipitation is accumulated.
What is the sea water temperature in September in Ishikawa Higashionna?
In September, the average sea temperature in Ishikawa Higashionna, Japan, is 28.3°C (82.9°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
How many hours of daylight does Ishikawa Higashionna have in September?
The average day length in September is 12h and 19min.
When is the sunrise / sunset in September in Ishikawa Higashionna?
In September, on the first day of the month, sunrise is at 06:08 and sunset at 18:48. On the last day of the month, in Ishikawa Higashionna, Japan, sunrise is at 06:20 and sunset at 18:16 JST.
How long on average sun shines in September in Ishikawa Higashionna?
In Ishikawa Higashionna, Japan, the average sunshine duration in September is 8.5h.
What are the months with the highest UV index in Ishikawa Higashionna?
The months with the highest UV index in Ishikawa Higashionna are June through September, with an average maximum UV index of 7.
What is the UV index reading in September in Ishikawa Higashionna?
In Ishikawa Higashionna, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Ishikawa Higashionna, Japan
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (18.8°C).

  • Average low temperature in September: 27.3°C

The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).

Average pressure in September
Ishikawa Higashionna, Japan
  • Average pressure in September: 1009.1mbar

The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

Average wind speed in September
Ishikawa Higashionna, Japan
  • Average wind speed in September: 22.3km/h

The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).

Average humidity in September
Ishikawa Higashionna, Japan
  • Average humidity in September: 79%

The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).

Average rainfall in September
Ishikawa Higashionna, Japan
  • Average rainfall in September: 131mm

The wettest month (with the highest rainfall) is June (205mm).
The driest month (with the least rainfall) is February (61mm).

Average rainfall days in September
Ishikawa Higashionna, Japan
  • Average rainfall days in September: 19.5 days

The month with the highest number of rainy days is January (22.6 days).
The months with the least rainy days are March and November (16.5 days).

Average sea temperature in September
Ishikawa Higashionna, Japan
  • Average sea temperature in September: 28.3°C

The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (20.9°C).

Average daylight in September /
Average sunshine in September
Ishikawa Higashionna, Japan
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Ishikawa Higashionna, Japan
  • Average sunshine days in September: 7.9 days

The month with the most sunshine days is April (11 days).
The month with the least sunshine days is January (5.4 days).

Average UV index in September
Ishikawa Higashionna, Japan
  • Average UV index in September: 7

The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in September
Ishikawa Higashionna, Japan
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in September
Ishikawa Higashionna, Japan
  • Average visibility in September: 10km

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

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