August weather forecastKoshihara, Japan
August
Weather in August
August, the last month of the summer in Koshihara, is also a moderately hot month, with an average temperature ranging between max 29.4°C (84.9°F) and min 28.3°C (82.9°F).Temperature
August stands out as Koshihara's warmest month, with temperatures ranging between an average high of 29.4°C (84.9°F) and a low of 28.3°C (82.9°F).Heat index
The heat index in August is evaluated at a sweltering 36°C (96.8°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 primarily vital for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In August, the average relative humidity is 81%.Rainfall
In Koshihara, in August, during 20.8 rainfall days, 169mm (6.65") of precipitation is typically accumulated. In Koshihara, during the entire year, the rain falls for 227.4 days and collects up to 1405mm (55.31") of precipitation.Daylight
In August, the average length of the day in Koshihara is 13h and 2min.On the first day of August, sunrise is at 05:54 and sunset at 19:15. On the last day of the month, sunrise is at 06:08 and sunset at 18:49 JST.
Sunshine
The average sunshine in August is 9h.UV index
The months with the highest UV index in Koshihara are June through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 7 in August suggests the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Koshihara, Japan
- Average high temperature in August: 29.4°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.9°C).
- Average low temperature in August: 28.3°C
The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).
Average pressure in August
Koshihara, Japan
- Average pressure in August: 1006.6mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in August
Koshihara, Japan
- Average wind speed in August: 22.3km/h
The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).
Average humidity in August
Koshihara, Japan
- Average humidity in August: 81%
The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).
Average rainfall in August
Koshihara, Japan
- Average rainfall in August: 169mm
The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).
Average rainfall days in August
Koshihara, Japan
- Average rainfall days in August: 20.8 days
The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).
Average daylight in August /
Average sunshine in August
Koshihara, Japan
- Average daylight in August: 13h and 0min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in August: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Koshihara, Japan
- Average sunshine days in August: 7.3 days
The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).
Average UV index in August
Koshihara, Japan
- Average UV index in August: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in August
Koshihara, Japan
- Average cloud cover in August: 36
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Koshihara, Japan
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
