July weather forecast
Chung Sam Wai, Hong Kong

July, the same as June, in Chung Sam Wai, Hong Kong, is another hot summer month, with an average temperature varying between 30.8°C (87.4°F) and 27.3°C (81.1°F).

Temperature

The average high-temperature is a still hot 30.8°C (87.4°F) in July, hardly different from the 30.1°C (86.2°F) recorded in June. During July, the nighttime temperatures align closely with the daytime averages, measuring a moderately hot 27.3°C (81.1°F).

Heat index

For July, the heat index is calculated to be a blisteringly hot 40°C (104°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index values are typically calculated for conditions of shade and a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in July in Chung Sam Wai is 80%.

Rainfall

In July, the rain falls for 25.3 days. Throughout July, 184mm (7.24") of precipitation is accumulated. Throughout the year, in Chung Sam Wai, there are 207.6 rainfall days, and 1194mm (47.01") of precipitation is accumulated.

Daylight

In July, the average length of the day is 13h and 22min.
On the first day of July in Chung Sam Wai, sunrise is at 05:43 and sunset at 19:12. On the last day of the month, sunrise is at 05:55 and sunset at 19:05 HKT.

Sunshine

With an average of 9.9h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During July, 7 as the daily maximum UV index converts into the following advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.