July weather forecast
Nam Wan, Hong Kong

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

Temperature

The advent of July presents an average high-temperature of a hot 30.1°C (86.2°F), maintaining a close correlation with the preceding month. Nights in July in Nam Wan exhibit a minor reduction to an average low temperature of 27.6°C (81.7°F).

Heat index

The heat index value for July is appraised at a fiery hot 38°C (100.4°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

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

Rainfall

In July, the rain falls for 26.8 days. Throughout July, 192mm (7.56") of precipitation is accumulated. 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 05:43 and sunset at 19:11. On the last day of July, sunrise is at 05:55 and sunset at 19:04 HKT.

Sunshine

July has the most sunshine of the year, with an average of 10h 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 health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 7 in July transforms into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.