July weather forecast
Happy Valley, Hong Kong

July brings in the classic summer heat to Happy Valley, Hong Kong. Clear skies during the day time provide excellent visibility for sightseeing. In the transition to August, the climatic conditions remain relatively constant with minor fluctuations. Cooling off is often a challenge as the nighttime temperature rises. Remarkably, the temperature scales to a year-high of 30.1°C (86.2°F), adding to the summer warmth.

Temperature

Happy Valley's shift into July is marked by a subtle change to a hot 30.1°C (86.2°F) from June's 29.5°C (85.1°F) in temperature. Happy Valley's average low temperature, barely cooler than the daytime high, steadies at a warm 27.6°C (81.7°F) during July.

Heat index

The heat index value for July is computed to be a torrid 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. 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 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. 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. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in July is 80%.

Rainfall

In Happy Valley, in July, during 26.8 rainfall days, 192mm (7.56") of precipitation is typically accumulated. Throughout the year, there are 224.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.

Daylight

In Happy Valley, the average length of the day in July is 13h and 21min.
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 in Happy Valley, with an average of 10h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 7 translates into the following recommendations:
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. Opt for tightly woven and loose clothing to enhance protection from the Sun.