The first month of the summer, June
, is still a warm month in Shanghai
, with average temperature ranging between min 21.7°C (71.1°F) and max 27.8°C (82°F).
In Shanghai, the average high-temperature in June marginally rises, from 24.8°C (76.6°F) in May
, to a still moderately hot 27.8°C (82°F). The average low-temperature, in Shanghai, is 21.7°C (71.1°F).
In June, the average heat index is calculated to be a tropical 31.5°C (88.7°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.Note
: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
With an average relative humidity of 79%, June is the most humid month.
In Shanghai, during June, the rain falls for 12.7 days and regularly aggregates up to 181.8mm (7.16") of precipitation. Throughout the year, in Shanghai, there are 120.8 rainfall days, and 1166.1mm (45.91") of precipitation is accumulated.
In June, the average sea temperature is 21°C (69.8°F).Note
: For most, swimming in 21°C (69.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
June has the longest days of the year, with an average of 14.2h of daylight.
In June, the average sunshine in Shanghai is 4.4h.
June through August
, with an average maximum UV index of 11, are months with the highest UV index in Shanghai. A UV Index of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV rays for average individuals.Note
: The daily maximum UV index of 11 in June interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system.