August weather forecast
Unehara, Japan

August

Weather in August

The last month of the summer, August, is also a moderately hot month in Unehara, Japan, with an average temperature fluctuating between 23.8°C (74.8°F) and 29.2°C (84.6°F).

Temperature

August is Unehara's warmest month, registering average high temperatures of 29.2°C (84.6°F) and lows of 23.8°C (74.8°F).

Heat index

For August, the heat index is estimated at a torrid 35°C (95°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Unehara, in August, it is raining for 17.7 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, in Unehara, there are 137.3 rainfall days, and 405mm (15.94") of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In August, the average length of the day is 13h and 26min.
On the first day of the month, sunrise is at 05:12 and sunset at 19:05. On the last day of August, sunrise is at 05:34 and sunset at 18:30 JST.

Sunshine

August has the most sunshine of the year in Unehara, with an average of 10.8h of sunshine.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index in Unehara. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 7 in August leads to these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the hottest time of year in Unehara?
The warmest temperatures in Unehara, Japan, occur during August, when averages reach a peak of 29.2°C (84.6°F) and a low of 23.8°C (74.8°F).
How hot is August in Unehara?
Unehara in August has an average high-temperature of 29.2°C (84.6°F) and an average low-temperature of 23.8°C (74.8°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 35°C (95°F).
What is the average humidity in August in Unehara?
In August, the average relative humidity in Unehara, Japan, is 80%.
How many days does it rain in August in Unehara?
In Unehara, Japan, in August, during 17.7 rainfall days, 64mm (2.52") of precipitation is typically accumulated.
When it does not snow in Unehara?
In Unehara, Japan, snow does not fall in March through November.
What is the average length of the day in August in Unehara?
The average day length in August in Unehara, Japan, is 13h and 26min.
When is the sunrise / sunset in August in Unehara?
On the first day of August in Unehara, sunrise is at 05:12 and sunset at 19:05. On the last day of the month, sunrise is at 05:34 and sunset at 18:30 JST.
What month has the most sunshine in Unehara?
The month with the most sunshine in Unehara is August, with an average of 10.8h of sunshine.
How long on average sun shines in August in Unehara?
The average sunshine duration in August is 10.8h.
What is the month with the highest UV index in Unehara?
The months with the highest UV index are July and August, with an average maximum UV index of 7.
What is the UV index reading in August in Unehara?
In August, the average daily maximum UV index in Unehara is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August
Unehara, 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 (6.9°C).

  • Average low temperature in August: 23.8°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average pressure in August
Unehara, Japan
  • Average pressure in August: 1009.2mbar

The month with the highest atmospheric pressure is February (1020.3mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).

Average wind speed in August
Unehara, Japan
  • Average wind speed in August: 9km/h

The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is June (8.7km/h).

Average humidity in August
Unehara, Japan
  • Average humidity in August: 80%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are March and April (73%).

Average rainfall in August
Unehara, Japan
  • Average rainfall in August: 64mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is November (11mm).

Average rainfall days in August
Unehara, Japan
  • Average rainfall days in August: 17.7 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in August
Unehara, Japan
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (11mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in August
Unehara, 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).

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

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 54min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in August
Unehara, Japan
  • Average sunshine days in August: 10.2 days

The month with the most sunshine days is March (20.1 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in August
Unehara, Japan
  • Average UV index in August: 7

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 August
Unehara, Japan
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in August
Unehara, Japan
  • Average visibility in August: 10km

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

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