August weather forecastKoyasu, Japan
August
Weather in August
The last month of the summer, August, is another warm month in Koyasu, Japan, with an average temperature ranging between min 25.3°C (77.5°F) and max 28.8°C (83.8°F).Temperature
In Koyasu, the average temperatures in August are the highest, with a peak at 28.8°C (83.8°F) and a low of 25.3°C (77.5°F).Heat index
The heat index value during August is computed to be a hot 34°C (93.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In Koyasu, the average relative humidity in August is 80%.Rainfall
In Koyasu, in August, during 13.1 rainfall days, 56mm (2.2") of precipitation is typically accumulated. In Koyasu, during the entire year, the rain falls for 151.7 days and collects up to 886mm (34.88") of precipitation.Snowfall
April through December are months without snowfall.Daylight
In Koyasu, the average length of the day in August is 13h and 28min.On the first day of the month, sunrise is at 04:51 and sunset at 18:46. On the last day of August, in Koyasu, sunrise is at 05:14 and sunset at 18:11 JST.
Sunshine
The month with the most sunshine in Koyasu is August, with an average of 10.7h of sunshine.UV index
In Koyasu, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Koyasu, Japan
- Average high temperature in August: 28.8°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in August: 25.3°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in August
Koyasu, 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 (1009.1mbar).
Average wind speed in August
Koyasu, Japan
- Average wind speed in August: 16.7km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in August
Koyasu, Japan
- Average humidity in August: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in August
Koyasu, Japan
- Average rainfall in August: 56mm
The wettest month (with the highest rainfall) is September (125mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in August
Koyasu, Japan
- Average rainfall days in August: 13.1 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in August
Koyasu, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Koyasu, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.5 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
Koyasu, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in August
Koyasu, Japan
- Average sunshine days in August: 15 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (11.2 days).
Average UV index in August
Koyasu, 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 and December (UV index 3).
Average cloud cover in August
Koyasu, Japan
- Average cloud cover in August: 29
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Koyasu, 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).
