June weather forecast
Chai Wan, Hong Kong

The first month of the summer, June, is also a moderately hot month in Chai Wan, Hong Kong, with an average temperature ranging between min 27.3°C (81.1°F) and max 29.5°C (85.1°F).

Temperature

Chai Wan's weather in June indicates an average high-temperature of a still warm 29.5°C (85.1°F), nearly consistent with the 27.7°C (81.9°F) of May. Chai Wan reports an average low-temperature of 27.3°C (81.1°F) during the subtly cooler June nights.

Heat index

In June, the average heat index is estimated at a torrid 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In June, the average relative humidity is 83%.

Rainfall

In Chai Wan, in June, it is raining for 25.1 days, with typically 206mm (8.11") of accumulated precipitation. In Chai Wan, during the entire year, the rain falls for 224.5 days and collects up to 1264mm (49.76") of precipitation.

Daylight

The month with the longest days is June, with an average of 13h and 30min of daylight.
On the first day of June, sunrise is at 05:38 and sunset at 19:03. On the last day of the month, sunrise is at 05:42 and sunset at 19:11 HKT.

Sunshine

In Chai Wan, the average sunshine in June is 9.5h.

UV index

The months with the highest UV index in Chai Wan are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 7 in June translates into the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.