July weather forecast
Chai Wan, Hong Kong

July in Chai Wan, Hong Kong, is a hot summer month, with an average temperature fluctuating between 30.1°C (86.2°F) and 27.6°C (81.7°F).

Temperature

An average high-temperature of a hot 30.1°C (86.2°F) marks July, exhibiting a close resemblance to the conditions in June. Chai Wan notes an average temperature descent to a warm 27.6°C (81.7°F) in July, a small shift from its daytime peak.

Heat index

The average heat index in July is estimated at a fiery hot 38°C (100.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in July in Chai Wan is 80%.

Rainfall

In Chai Wan, in July, it is raining for 26.8 days, with typically 192mm (7.56") of accumulated precipitation. Throughout the year, there are 224.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.

Daylight

The average length of the day in July is 13h and 21min.
On the first day of the month, sunrise is at 05:42 and sunset at 19:11. On the last day of July, sunrise is at 05:54 and sunset at 19:04 HKT.

Sunshine

July has the most sunshine of the year in Chai Wan, 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 average individuals.
Note: A maximum high UV index of 7 in July translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Enhance your sun protection with tightly woven, yet airy clothing.