July stands out as the month receiving a high amount of daylight, topping the chart at 13.3 hours. The weather during this month, is dominated by an intense combination of sweltering heat and high rainfall. As a result, sun protection becomes imperative due to the peak UV index reaching 12. Despite the heightened summer effects, the love for beaches and water sports continues to lure tourists.
Temperature
July tends to be the warmest month in
Macau, with temperatures averaging a daily high of 31.6°C and a low of 26.2°C.
Heat index
During July, the heat index is calculated to be an extremely hot 44°C.
Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In July, the average relative humidity in Macau is 81.8%.
Rainfall
In Macau, in July, during 16 rainfall days, 297mm of precipitation is typically accumulated. In Macau,
China, during the entire year, the rain falls for 130.2 days and collects up to 2058mm of precipitation.
Sea temperature
The month with the warmest seawater is July, with an average sea temperature of 29.3°C.
Note: Swimming, diving, and other water activities in temperatures ranging from 25°C to 29°C are highly enjoyable and provide prolonged comfort without unease.
Daylight
In July, the average length of the day in Macau is 13h and 20min.
On the first day of the month, sunrise is at 05:45 and sunset at 19:13. On the last day of July, sunrise is at 05:57 and sunset at 19:07 CST.
Sunshine
July has the most sunshine of the year in Macau, with an average of 7.2h of sunshine.
UV index
April through
August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In July, a daily UV index of 12 turns into the following recommendations:
Ensure every key safety measure. People with light skin might sustain burns in fewer than 5 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Prompt application of a broad-spectrum sunscreen, SPF 30+, is necessary after a swim or an outdoor workout and it should be re-applied every two hours. Attention! The combination of sand and water reflections enhances UV ray intensity.