August weather forecast
Onahama, Japan

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Weather in August

The last month of the summer, August, is also a moderately hot month in Onahama, Japan, with an average temperature ranging between min 22.7°C (72.9°F) and max 27.2°C (81°F).

Temperature

The warmest period is August, when temperatures fluctuate between an average high of 27.2°C (81°F) and a low of 22.7°C (72.9°F).

Heat index

August's average heat index is appraised at a tropical 31°C (87.8°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The average relative humidity in August is 83%.

Rainfall

In August, the rain falls for 16.1 days. Throughout August, 62mm (2.44") of precipitation is accumulated. Throughout the year, in Onahama, there are 149.2 rainfall days, and 755mm (29.72") of precipitation is accumulated.

Snowfall

In Onahama, snow does not fall in April through October and December.

Daylight

In Onahama, the average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 04:41 and sunset at 18:43. On the last day of August, sunrise is at 05:06 and sunset at 18:06 JST.

Sunshine

The month with the most sunshine in Onahama is August, with an average of 9.8h of sunshine.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the warmest month in Onahama?

August, marked by an average high-temperature of 27.2°C (81°F) and a low-temperature of 22.7°C (72.9°F), is the warmest month.

What are August temperatures in Onahama?

Onahama in August has an average high-temperature of 27.2°C (81°F) and an average low-temperature of 22.7°C (72.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 31°C (87.8°F).

What is the average humidity in August in Onahama?

The average relative humidity in August in Onahama is 83%.

How many days does it rain in August in Onahama?

In Onahama, in August, it is raining for 16.1 days, with typically 62mm (2.44") of accumulated precipitation.

When it does not snow in Onahama?

In Onahama, snow does not fall in April through October and December.

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

In Onahama, Japan, the average day length in August is 13h and 33min.

When is the sunrise / sunset in August in Onahama?

In August, on the first day of the month, sunrise is at 04:41 and sunset at 18:43. On the last day of the month, in Onahama, sunrise is at 05:06 and sunset at 18:06 JST.

What month has the most sunshine in Onahama?

The month with the most sunshine in Onahama is August, with an average of 9.8h of sunshine.

How many hours of sunshine does Onahama have in August?

The average sunshine duration in August in Onahama, Japan, is 9.8h.

When is the highest UV index in Onahama?

The months with the highest UV index in Onahama, Japan, are July and August, with an average maximum UV index of 6.

What is the UV index reading in August in Onahama?

In August, the average daily maximum UV index in Onahama 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 temperature in August
Onahama, Japan

Average temperature in August - Onahama, Japan
  • Average high temperature in August: 27.2°C

The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (6.7°C).

  • Average low temperature in August: 22.7°C

The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in August
Onahama, Japan

Average pressure in August - Onahama, Japan
  • Average pressure in August: 1010.2mbar

The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).

Average wind speed in August
Onahama, Japan

Average wind speed in August - Onahama, Japan
  • Average wind speed in August: 11.9km/h

The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).

Average humidity in August
Onahama, Japan

Average humidity in August - Onahama, Japan
  • Average humidity in August: 83%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (65%).

Average rainfall in August
Onahama, Japan

Average rainfall in August - Onahama, Japan
  • Average rainfall in August: 62mm

The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is January (27mm).

Average rainfall days in August
Onahama, Japan

Average rainfall days in August - Onahama, Japan
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in August
Onahama, Japan

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

The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

Average snowfall days in August
Onahama, Japan

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

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Onahama, Japan

Average daylight in August / Average sunshine in August - Onahama, Japan
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).

Average sunshine days in August
Onahama, Japan

Average sunshine days in August - Onahama, Japan
  • Average sunshine days in August: 11 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in August
Onahama, Japan

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

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).

Average cloud cover in August
Onahama, Japan

Average cloud cover in August - Onahama, Japan
  • Average cloud cover in August: 40

The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).

Average visibility in August
Onahama, Japan

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

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

Onahama, Japan

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