August weather forecast
Hong Kong, Hong Kong

August in Hong Kong carries the essence of summer warmth and high humidity. As the city navigates through this tropical month, the daily temperatures oscillate between moderately hot to high levels. One can also observe an uptick in the levels of rainfall recorded. While the precipitation lessens slightly from July to 432mm (17.01"), it’s still enough to elicit an atmosphere of abundant humidity. Regardless of the moisture-laden air, August offers decent sunlight exposure, making it a month of persistent summer warmth, rainfall, and humidity.

Temperature

Hong Kong marks the start of August with an average high-temperature of a still hot 31.1°C (88°F), hinting at a slight fluctuation from July's 31.4°C (88.5°F). In Hong Kong, the nightly August temperatures experience a slight descent from daily highs to an average low of 26.6°C (79.9°F).

Heat index

For most parts of August, the heat index is calculated to be a blisteringly hot 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

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

Rainfall

In Hong Kong, during August, the rain falls for 16.9 days and regularly aggregates up to 432mm (17.01") of precipitation. In Hong Kong, during the entire year, the rain falls for 137.8 days and collects up to 2398mm (94.41") of precipitation.

Sea temperature

In August, the average sea temperature in Hong Kong is 28.7°C (83.7°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

In Hong Kong, Hong Kong, the average length of the day in August is 12h and 53min.
On the first day of the month, sunrise is at 05:55 and sunset at 19:03. On the last day of August, sunrise is at 06:05 and sunset at 18:41 HKT.

Sunshine

In Hong Kong, the average sunshine in August is 6.1h.

UV index

The months with the highest UV index in Hong Kong, Hong Kong, are April through August, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In August, the average maximum UV index of 12 translates into the following recommendations:
Take every essential safety procedure. Individuals with fair skin could sustain burns in less than 5 minutes. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Apply generously and frequently a broad-spectrum SPF 30+ sunscreen every two hours, or immediately after swimming or any outdoor exercise. Caution! The Sun's UV intensity grows with reflections off sand and water.