August weather forecast
Yachiyo, Japan

August

Weather in August

August, the last month of the summer in Yachiyo, is a tropical month, with an average temperature fluctuating between 30.9°C (87.6°F) and 24.7°C (76.5°F).

Temperature

August, characterized by an average high temperature of 30.9°C (87.6°F) and a low temperature of 24.7°C (76.5°F), is generally the warmest month.

Heat index

For August, the heat index is calculated to be a scorching 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In August, the average relative humidity in Yachiyo is 77%.

Rainfall

In Yachiyo, in August, during 9 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Yachiyo, during the entire year, the rain falls for 98.7 days and collects up to 190mm (7.48") of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In Yachiyo, the average length of the day in August is 13h and 29min.
On the first day of August in Yachiyo, sunrise is at 04:47 and sunset at 18:44. On the last day of the month, sunrise is at 05:10 and sunset at 18:08 JST.

Sunshine

With an average of 10.2h of sunshine, August has the most sunshine of the year.

UV index

In Yachiyo, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 6 during August translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What is the hottest time of year in Yachiyo?
Yachiyo's warmest month, August, generally records average temperatures ranging from a high of 30.9°C (87.6°F) to a low of 24.7°C (76.5°F).
Is it hot in Yachiyo during August?
The high-temperature in Yachiyo, Japan, during August is 30.9°C (87.6°F) and the low-temperature is 24.7°C (76.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 40°C (104°F).
What is the average humidity in August in Yachiyo?
In Yachiyo, Japan, the average relative humidity in August is 77%.
How many days does it rain in August in Yachiyo?
In Yachiyo, in August, during 9 rainfall days, 15mm (0.59") of precipitation is typically accumulated.
When it does not snow in Yachiyo?
March through December are months without snowfall in Yachiyo, Japan.
How many hours of daylight does Yachiyo have in August?
In August, the average day length in Yachiyo, Japan, is 13h and 29min.
When is the sunrise / sunset in August in Yachiyo?
In August, on the first day of the month, sunrise is at 04:47 and sunset at 18:44. On the last day of the month, in Yachiyo, sunrise is at 05:10 and sunset at 18:08 JST.
What month has the most sunshine in Yachiyo?
With an average of 10.2h of sunshine, August has the most sunshine of the year in Yachiyo, Japan.
How long on average sun shines in August in Yachiyo?
The average sunshine duration in August in Yachiyo is 10.2h.
What is the UV index reading in August in Yachiyo?
In August, the average daily maximum UV index in Yachiyo, Japan, is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August - Yachiyo, Japan
Average temperature in August
Yachiyo, Japan
  • Average high temperature in August: 30.9°C

The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in August: 24.7°C

The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

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

The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in August - Yachiyo, Japan
Average wind speed in August
Yachiyo, Japan
  • Average wind speed in August: 12.1km/h

The windiest month (with the highest average wind speed) is April (14.8km/h).
The calmest months (with the lowest average wind speed) are June and November (11.7km/h).

Average humidity in August - Yachiyo, Japan
Average humidity in August
Yachiyo, Japan
  • Average humidity in August: 77%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).

Average rainfall in August - Yachiyo, Japan
Average rainfall in August
Yachiyo, Japan
  • Average rainfall in August: 15mm

The wettest month (with the highest rainfall) is October (25mm).
The driest month (with the least rainfall) is January (7mm).

Average rainfall days in August - Yachiyo, Japan
Average rainfall days in August
Yachiyo, Japan
  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is June (10.9 days).
The month with the least rainy days is January (4.8 days).

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

The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in August - Yachiyo, Japan
Average snowfall days in August
Yachiyo, 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, October, November and December (0 days).

Average daylight in August / Average sunshine in August - Yachiyo, Japan
Average daylight in August /
Average sunshine in August
Yachiyo, Japan
  • Average daylight in August: 13h and 3min

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 48min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in August - Yachiyo, Japan
Average sunshine days in August
Yachiyo, Japan
  • Average sunshine days in August: 19.7 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is June (16.1 days).

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

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

Average cloud cover in August - Yachiyo, Japan
Average cloud cover in August
Yachiyo, Japan
  • Average cloud cover in August: 35

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 29).

Average visibility in August - Yachiyo, Japan
Average visibility in August
Yachiyo, Japan
  • Average visibility in August: 10km

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

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