June weather forecast
Cheung Chau, Hong Kong

The first month of the summer, June, is a tropical month in Cheung Chau, Hong Kong, with an average temperature varying between 26.8°C (80.2°F) and 30.1°C (86.2°F).

Temperature

June ushers in an average high-temperature of a tropical 30.1°C (86.2°F), aligning closely with the preceding month. Cheung Chau records a negligible downturn from daytime temperatures, averaging a low of 26.8°C (80.2°F) in the month of June.

Heat index

The heat index for June is computed to be a sweltering 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in June is 82%.

Rainfall

In Cheung Chau, during June, the rain falls for 24.7 days and regularly aggregates up to 198mm (7.8") of precipitation. Throughout the year, in Cheung Chau, there are 207.6 rainfall days, and 1194mm (47.01") of precipitation is accumulated.

Daylight

The month with the longest days is June, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:39 and sunset at 19:03. On the last day of June, in Cheung Chau, sunrise is at 05:43 and sunset at 19:11 HKT.

Sunshine

The average sunshine in June in Cheung Chau is 9.2h.

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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in June leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.