August weather forecast
Iwakuni, Japan

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Weather in August

August, the last month of the summer in Iwakuni, is also a moderately hot month, with an average temperature varying between 29.2°C (84.6°F) and 23.4°C (74.1°F).

Temperature

Iwakuni's warmest month, August, registers temperatures that range from a high of 29.2°C (84.6°F) to a low of 23.4°C (74.1°F).

Heat index

For most parts of August, the heat index is computed to be a fiery hot 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In August, the average relative humidity in Iwakuni is 81%.

Rainfall

In Iwakuni, in August, it is raining for 17.1 days, with typically 74mm (2.91") of accumulated precipitation. In Iwakuni, during the entire year, the rain falls for 161.2 days and collects up to 650mm (25.59") of precipitation.

Snowfall

April through November are months without snowfall in Iwakuni.

Daylight

In Iwakuni, the average length of the day in August is 13h and 25min.
On the first day of August in Iwakuni, Japan, sunrise is at 05:22 and sunset at 19:12. On the last day of the month, sunrise is at 05:43 and sunset at 18:38 JST.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year.

UV index

The average daily maximum UV index in August in Iwakuni is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What is the warmest month in Iwakuni?

Iwakuni's temperature records reveal August as the warmest month, marked by average highs of 29.2°C (84.6°F) and lows of 23.4°C (74.1°F).

How hot is August in Iwakuni?

An average high-temperature, in August, in Iwakuni, is 29.2°C (84.6°F) and the average low-temperature is 23.4°C (74.1°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 36°C (96.8°F).

What is the average humidity in August in Iwakuni?

The average relative humidity in August in Iwakuni, Japan, is 81%.

How much does it rain in Iwakuni in August?

In August, in Iwakuni, Japan, the rain falls for 17.1 days. Throughout August, 74mm (2.91") of precipitation is accumulated.

When it does not snow in Iwakuni?

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

What is the average length of the day in August in Iwakuni?

The average day length in August in Iwakuni, Japan, is 13h and 25min.

When are sunrise and sunset in August in Iwakuni?

In August, on the first day of the month, sunrise is at 05:22 and sunset at 19:12. On the last day of the month, in Iwakuni, Japan, sunrise is at 05:43 and sunset at 18:38 JST.

What month has the most sunshine in Iwakuni?

The month with the most sunshine in Iwakuni is August, with an average of 10.6h of sunshine.

How many hours of sunshine does Iwakuni have in August?

In August, the average sunshine duration is 10.6h.

What is the UV index intensity in August in Iwakuni?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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 August
Iwakuni, Japan

Average temperature in August - Iwakuni, Japan
  • Average high temperature in August: 29.2°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in August: 23.4°C

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

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Average pressure in August
Iwakuni, Japan

Average pressure in August - Iwakuni, Japan
  • Average pressure in August: 1009mbar

The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).

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Average wind speed in August
Iwakuni, Japan

Average wind speed in August - Iwakuni, Japan
  • Average wind speed in August: 7.2km/h

The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is June (6.7km/h).

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Average humidity in August
Iwakuni, Japan

Average humidity in August - Iwakuni, Japan
  • Average humidity in August: 81%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (73%).

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Average rainfall in August
Iwakuni, Japan

Average rainfall in August - Iwakuni, Japan
  • Average rainfall in August: 74mm

The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is November (24mm).

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Average rainfall days in August
Iwakuni, Japan

Average rainfall days in August - Iwakuni, Japan
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is October (9.7 days).

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Average snowfall in August
Iwakuni, Japan

Average snowfall in August - Iwakuni, Japan
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (13mm).
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 August
Iwakuni, Japan

Average snowfall days in August - Iwakuni, Japan
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.8 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 daylight in August /
Average sunshine in August
Iwakuni, Japan

Average daylight in August / Average sunshine in August - Iwakuni, Japan
  • Average daylight in August: 13h and 2min

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 August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in August
Iwakuni, Japan

Average sunshine days in August - Iwakuni, Japan
  • Average sunshine days in August: 10.1 days

The month with the most sunshine days is May (19 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in August
Iwakuni, Japan

Average UV index in August - Iwakuni, Japan
  • Average UV index in August: 6

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

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Average cloud cover in August
Iwakuni, Japan

Average cloud cover in August - Iwakuni, Japan
  • Average cloud cover in August: 31

The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August and October (Cloud cover 31).

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Average visibility in August
Iwakuni, Japan

Average visibility in August - Iwakuni, Japan
  • Average visibility in August: 9km

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

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Iwakuni, Japan

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