August weather forecastHamamatsu, Japan

Weather in August

Despite an apparent plateauing of temperatures, August announces the pinnacle of summer's sizzle in Hamamatsu with a maximum temperature going up to 29.2°C (84.6°F). In stark contrast to the preceding month, August records a decrease in rainfall, presenting partly cloudy skies. The luminous presence of the sun dominates a good portion of the day, benefitting sun-seekers. Humidity levels show a slight reduction, making the thermal sensation outside more tolerable. Endearing coastal winds gently agitate the waters, holding the sea temperature steady.

Temperature

In Hamamatsu, the average temperatures in August are the highest, with a peak at 29.2°C (84.6°F) and a low of 24.3°C (75.7°F).

Heat index

The heat index value for August is evaluated at a sweltering 35°C (95°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
One should consider that heat index numbers are for shaded settings and light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in August in Hamamatsu is 79%.

Rainfall

In Hamamatsu, in August, it is raining for 19.3 days, with typically 100mm (3.94") of accumulated precipitation. In Hamamatsu, during the entire year, the rain falls for 160.9 days and collects up to 1265mm (49.8") of precipitation.

Snowfall

In Hamamatsu, snow does not fall in January, March through December.

Sea temperature

With an average sea temperature of 26.8°C (80.2°F), August is the month with the warmest seawater.
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 Hamamatsu, the average length of the day in August is 13h and 26min.
On the first day of the month, sunrise is at 04:59 and sunset at 18:51. On the last day of August, sunrise is at 05:21 and sunset at 18:17 JST.

Sunshine

August has the most sunshine of the year, with an average of 11h of sunshine.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.