August weather forecastChatan, Japan

Weather in August

August, the last month of the summer in Chatan, is another warm month, with an average temperature varying between 28.2°C (82.8°F) and 29.5°C (85.1°F).

Temperature

August tends to be the warmest month, with temperatures averaging a daily high of 29.5°C (85.1°F) and a low of 28.2°C (82.8°F).

Heat index

The average heat index in August is appraised at a sweltering 36°C (96.8°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Chatan, the average relative humidity in August is 81%.

Rainfall

In Chatan, in August, it is raining for 19.1 days, with typically 149mm (5.87") of accumulated precipitation. In Chatan, during the entire year, the rain falls for 215.5 days and collects up to 1300mm (51.18") of precipitation.

Sea temperature

With an average sea temperature of 28.7°C (83.7°F), August is the month with the warmest seawater.
Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C (77°F) and 29°C (84.2°F), ensuring comfort and enjoyment for extended time frames.

Daylight

In August, the average length of the day in Chatan, Japan, is 13h and 3min.
On the first day of August in Chatan, sunrise is at 05:54 and sunset at 19:16. On the last day of the month, sunrise is at 06:08 and sunset at 18:49 JST.

Sunshine

In August, the average sunshine in Chatan, Japan, is 9.1h.

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in August converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! Reflections from sand and water can intensify the Sun's UV radiation.