August weather forecast
Takamatsu, Japan

The last month of the summer, August, is another hot month in Takamatsu, Japan, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 23.6°C (74.5°F).

Temperature

Takamatsu witnesses the warmest weather in August, with temperatures averaging a high of 31.7°C (89.1°F) and a low of 23.6°C (74.5°F).

Heat index

For August, the heat index is computed to be a scorching 41°C (105.8°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In August, the average relative humidity is 74%.

Rainfall

In August, in Takamatsu, the rain falls for 14 days. Throughout August, 92mm (3.62") of precipitation is accumulated. In Takamatsu, during the entire year, the rain falls for 189 days and collects up to 1124mm (44.25") of precipitation.

Snowfall

March through December 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: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

In August, the average length of the day is 13h and 25min.
On the first day of August in Takamatsu, sunrise is at 05:14 and sunset at 19:05. On the last day of the month, sunrise is at 05:36 and sunset at 18:31 JST.

Sunshine

August has the most sunshine of the year, with an average of 7.3h of sunshine.

UV index

In August, the average daily maximum UV index is 10. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 10 in August leads to these guidelines:
It is crucial to take precautions; skin and eyes can get damaged if left unprotected. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Even on overcast days, a sunscreen with a sun protection factor of no less than 30 should be generously applied and reapplied, particularly after swimming or outdoor activities. Take note! Sand and water reflections strengthen the Sun's UV exposure.