May weather forecast and climate
Shanghai, China

The mother River Huangpu dividing the city into two in Shanghai, China
The mother River Huangpu dividing the city into two in Shanghai, China

Weather in May

The last month of the spring, May, is a moderately hot month in Shanghai, China, with temperature in the range of an average high of 24.8°C (76.6°F) and an average low of 17.3°C (63.1°F).

Temperature

In Shanghai, the average high-temperature increases, from a comfortable 19.5°C (67.1°F) in April, to a warm 24.8°C (76.6°F). In Shanghai, in May, the average low-temperature is 17.3°C (63.1°F).

Humidity

In May, the average relative humidity is 72%.

Rainfall

In May, the rain falls for 10.4 days. Throughout May, 84.5mm (3.33") of precipitation is accumulated. In Shanghai, China, during the entire year, the rain falls for 120.8 days and collects up to 1166.1mm (45.91") of precipitation.

Sea temperature

In Shanghai, the average seawater temperature in May is 16°C (60.8°F).
Note: For swimming, a surface water temperature of 16°C (60.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Shanghai, the average length of the day is 13.7h.

Sunshine

The average sunshine in May is 5.5h.

UV index

The average daily maximum UV index in May is 10. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 10 transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the average humidity in May in Shanghai?

The average relative humidity in May in Shanghai is 72%.

How many days does it rain in May in Shanghai?

In Shanghai, in May, it is raining for 10.4 days, with typically 84.5mm (3.33") of accumulated precipitation.

What is the sea water temperature in May in Shanghai?

In May, the average sea temperature in Shanghai, China, is 16°C (60.8°F). For most, swimming in 16°C (60.8°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).

How many hours of daylight does Shanghai have in May?

The average length of the day in May in Shanghai, China, is 13.7h.

How long on average sun shines in May in Shanghai?

The average sunshine in May in Shanghai is 5.5h.

What is the UV index intensity in May in Shanghai?

In Shanghai, the average daily maximum UV index in May is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV rays.

Average temperature in May
Shanghai, China

Average temperature in May - Shanghai, China
  • Average high temperature in May: 24.8°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is January (8.1°C).

  • Average low temperature in May: 17.3°C

Months with the highest average low temperature are July and August (25.8°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).

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Average humidity in May
Shanghai, China

Average humidity in May - Shanghai, China
  • Average humidity in May: 72%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is December (71%).

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Average rainfall in May
Shanghai, China

Average rainfall in May - Shanghai, China
  • Average rainfall in May: 84.5mm

The wettest month (with the highest rainfall) is August (213.7mm).
The driest month (with the least rainfall) is December (43.9mm).

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Average rainfall days in May
Shanghai, China

Average rainfall days in May - Shanghai, China
  • Average rainfall days in May: 10.4 days

The month with the highest number of rainy days is June (12.7 days).
The month with the least rainy days is October (6.9 days).

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Average sea temperature in May
Shanghai, China

Average sea temperature in May - Shanghai, China
  • Average sea temperature in May: 16°C

The best month for swimming (with the highest average sea temperature) is August (27°C).
The coldest months (with the lowest average sea temperature) are February and March (8°C).

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Average daylight in May /
Average sunshine in May
Shanghai, China

Average daylight in May / Average sunshine in May - Shanghai, China
  • Average daylight in May: 13.7h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 5.5h

The month with the most sunshine is July (Average sunshine: 6.2h).
The month with the least sunshine is January (Average sunshine: 3.7h).

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Average UV index in May
Shanghai, China

Average UV index in May - Shanghai, China
  • Average UV index in May: 10

Months with the highest UV index are June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 3).

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