August weather forecastNishio, Japan
August
Weather in August
The last month of the summer, August, is a hot month in Nishio, Japan, with an average temperature varying between 25.1°C (77.2°F) and 31°C (87.8°F).Temperature
In Nishio, the month of August registers the highest temperatures, averaging 31°C (87.8°F) at the peak and 25.1°C (77.2°F) at the lowest.Heat index
The heat index value during August is calculated to be a sweltering 39°C (102.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in August is 75%.Rainfall
In Nishio, Japan, during August, the rain falls for 15.3 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 128.7 rainfall days, and 478mm (18.82") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Nishio.Sea temperature
August is the month with the warmest seawater in Nishio, with an average sea temperature of 26.8°C (80.2°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
In August, the average length of the day in Nishio is 13h and 26min.On the first day of the month, sunrise is at 05:01 and sunset at 18:54. On the last day of August, sunrise is at 05:23 and sunset at 18:20 JST.
Sunshine
The month with the most sunshine is August, with an average of 10.8h of sunshine.UV index
July and August, with an average maximum UV index of 7, are months with the highest UV index in Nishio. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! UV intensity is amplified by reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Nishio, Japan
- Average high temperature in August: 31°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in August: 25.1°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in August
Nishio, Japan
- Average pressure in August: 1010mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in August
Nishio, Japan
- Average wind speed in August: 10.2km/h
The windiest month (with the highest average wind speed) is January (16.5km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in August
Nishio, Japan
- Average humidity in August: 75%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is February (68%).
Average rainfall in August
Nishio, Japan
- Average rainfall in August: 35mm
The wettest month (with the highest rainfall) is July (80mm).
The driest month (with the least rainfall) is January (13mm).
Average rainfall days in August
Nishio, Japan
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in August
Nishio, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Nishio, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Nishio, Japan
- Average sea temperature in August: 26.8°C
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest months (with the lowest average sea temperature) are February and March (14.8°C).
Average daylight in August /
Average sunshine in August
Nishio, Japan
- Average daylight in August: 13h and 24min
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 54min).
- Average sunshine in August: 10h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in August
Nishio, Japan
- Average sunshine days in August: 12.7 days
The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in August
Nishio, Japan
- Average UV index in August: 7
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in August
Nishio, Japan
- Average cloud cover in August: 31
The months with the most cloud cover are June and July (Cloud cover 41).
The months with the least cloud cover are January and November (Cloud cover 30).
Average visibility in August
Nishio, Japan
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).





