August weather forecastSasebo, Japan
August
Weather in August
August continues to bring high summer temperatures in Sasebo with a high daily temperature going up to 29.6°C (85.3°F). Despite being the hottest month, it experiences a decrease in rainfall compared to July. The reduction in rain and sustaining high temperatures, make this month particularly warm. The increase in sunshine hours further intensify temperatures. As summer gradually winds down, the changing weather patterns herald the approach of autumn.Temperature
The month of August, characterized by an average high of 29.6°C (85.3°F) and a low of 24.8°C (76.6°F), is recognized as the warmest in Sasebo, Japan.Heat index
August's average heat index is appraised at a very hot 37°C (98.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in August in Sasebo is 82%.Rainfall
In Sasebo, in August, it is raining for 19.3 days, with typically 134mm (5.28") of accumulated precipitation. Throughout the year, in Sasebo, there are 169 rainfall days, and 900mm (35.43") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 27.7°C (81.9°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.
Daylight
The average length of the day in August in Sasebo is 13h and 22min.On the first day of the month, sunrise is at 05:34 and sunset at 19:20. On the last day of August, sunrise is at 05:54 and sunset at 18:47 JST.
Sunshine
The month with the most sunshine in Sasebo is August, with an average of 10.5h of sunshine.UV index
In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be on guard! The reflective nature of sand and water boosts UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sasebo, Japan
- Average high temperature in August: 29.6°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in August: 24.8°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in August
Sasebo, Japan
- Average pressure in August: 1008.3mbar
The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008mbar).
Average wind speed in August
Sasebo, Japan
- Average wind speed in August: 11.7km/h
The windiest months (with the highest average wind speed) are January and December (16.7km/h).
The calmest month (with the lowest average wind speed) is June (10.6km/h).
Average humidity in August
Sasebo, Japan
- Average humidity in August: 82%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (71%).
Average rainfall in August
Sasebo, Japan
- Average rainfall in August: 134mm
The wettest month (with the highest rainfall) is July (192mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in August
Sasebo, Japan
- Average rainfall days in August: 19.3 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (9.5 days).
Average snowfall in August
Sasebo, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Sasebo, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Sasebo, Japan
- Average sea temperature in August: 27.7°C
The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is March (14.7°C).
Average daylight in August /
Average sunshine in August
Sasebo, Japan
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in August
Sasebo, Japan
- Average sunshine days in August: 9.7 days
The month with the most sunshine days is May (20.2 days).
The months with the least sunshine days are July and December (9.5 days).
Average UV index in August
Sasebo, 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 December (UV index 2).
Average cloud cover in August
Sasebo, Japan
- Average cloud cover in August: 34
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in August
Sasebo, Japan
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).





