August weather forecastYachimata, Japan
August
Weather in August
The last month of the summer, August, is another warm month in Yachimata, Japan, with an average temperature fluctuating between 24.9°C (76.8°F) and 29.9°C (85.8°F).Temperature
Yachimata's August weather, marked by an average high temperature of 29.9°C (85.8°F) and an average low temperature of 24.9°C (76.8°F), is the warmest in the year.Heat index
August's average heat index is computed to be a very hot 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
The average relative humidity in August is 79%.Rainfall
In Yachimata, in August, it is raining for 17.6 days, with typically 78mm (3.07") of accumulated precipitation. Throughout the year, there are 191.3 rainfall days, and 1095mm (43.11") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in August is 13h and 29min.On the first day of the month, sunrise is at 04:46 and sunset at 18:43. On the last day of August, in Yachimata, sunrise is at 05:10 and sunset at 18:07 JST.
Sunshine
The month with the most sunshine in Yachimata is August, with an average of 10.3h of sunshine.UV index
The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Yachimata, Japan
- Average high temperature in August: 29.9°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in August: 24.9°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (4.2°C).
Average pressure in August
Yachimata, Japan
- Average pressure in August: 1010.1mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in August
Yachimata, Japan
- Average wind speed in August: 14km/h
The windiest month (with the highest average wind speed) is March (17.7km/h).
The calmest month (with the lowest average wind speed) is June (13.4km/h).
Average humidity in August
Yachimata, Japan
- Average humidity in August: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (61%).
Average rainfall in August
Yachimata, Japan
- Average rainfall in August: 78mm
The wettest month (with the highest rainfall) is October (149mm).
The driest month (with the least rainfall) is January (50mm).
Average rainfall days in August
Yachimata, Japan
- Average rainfall days in August: 17.6 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in August
Yachimata, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (17mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Yachimata, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.8 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
Yachimata, Japan
- Average daylight in August: 13h and 30min
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 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in August
Yachimata, Japan
- Average sunshine days in August: 10.7 days
The month with the most sunshine days is January (18.8 days).
The months with the least sunshine days are June and September (7.9 days).
Average UV index in August
Yachimata, 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, February, March and December (UV index 3).
Average cloud cover in August
Yachimata, Japan
- Average cloud cover in August: 33
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in August
Yachimata, Japan
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).





