July, the apex of summer, impresses with the hottest weather in the year, the temperatures reach from 25.2°C (77.4°F) up to 33.6°C (92.5°F). An average of 173mm (6.81") of rainfall is recorded during this timeframe. The searing sunlight necessitates the need for protective wear such as caps and sunglasses. The humidity levels remain high, quenching the parched earth. However, spectacular sunsets amidst shimmering urban landscapes make the hangouts worthwhile.
Temperature
The month of July sees the highest average temperatures, reaching 33.6°C (92.5°F) at the peak and 25.2°C (77.4°F) at the low.
Heat index
The heat index in July is appraised at a blazing hot 48°C (118.4°F).
Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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 natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In July, the average relative humidity in
Hangzhou is 76%.
Rainfall
In July, the rain falls for 12.4 days. Throughout July, 173mm (6.81") of precipitation is accumulated. Throughout the year, in Hangzhou, there are 147.4 rainfall days, and 1438mm (56.61") of precipitation is accumulated.
Sea temperature
In Hangzhou, the average seawater temperature in July is 26°C (78.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
The average length of the day in July in Hangzhou is 13h and 53min.
On the first day of the month, sunrise is at 05:01 and sunset at 19:05. On the last day of July, sunrise is at 05:17 and sunset at 18:54 CST.
Sunshine
July has the most sunshine of the year, with an average of 6.9h of sunshine.
UV index
The months with the highest UV index are
June through
August, with an average maximum UV index of 11. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 11 during July leads to these instructions:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Directly after outdoor activities or swimming, a broad-spectrum sunscreen with SPF 30+ should be applied generously and reapplied frequently. Be wary! Reflections from sand and water make UV radiation more intense.