July weather forecast
Nam Chung Cheng Uk, Hong Kong

July, like June, is another hot summer month in Nam Chung Cheng Uk, Hong Kong, with temperature in the range of an average low of 27.3°C (81.1°F) and an average high of 30.8°C (87.4°F).

Temperature

The transition from June to July brings an average high-temperature of a still tropical 30.8°C (87.4°F), barely different from June's 30°C (86°F). Nam Chung Cheng Uk's nighttime temperatures in July reveal a minimal variation from the daytime highs, averaging at a warm 27.3°C (81.1°F).

Heat index

In July, the average heat index is calculated to be a blisteringly hot 40°C (104°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in July is 80%.

Rainfall

In Nam Chung Cheng Uk, in July, during 25.1 rainfall days, 121mm (4.76") of precipitation is typically accumulated. Throughout the year, there are 187.1 rainfall days, and 771mm (30.35") of precipitation is accumulated.

Daylight

The average length of the day in July is 13h and 22min.
On the first day of July, sunrise is at 05:42 and sunset at 19:11. On the last day of the month, sunrise is at 05:54 and sunset at 19:04 HKT.

Sunshine

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

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 threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 7 during July leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.