Gulangyu Island — Water Temperature in May

Water Temperature Range

19°C

minimum

23°C

average

28°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
MAY 1	-10°C	24°C	20°C	21°C
MAY 2	24°C	21°C	20°C	22°C
MAY 3	24°C	21°C	20°C	22°C
MAY 4	24°C	21°C	21°C	21°C
MAY 5	24°C	22°C	22°C	21°C
MAY 6	24°C	22°C	22°C	22°C
MAY 7	24°C	22°C	21°C	22°C
MAY 8	24°C	22°C	22°C	22°C
MAY 9	24°C	22°C	22°C	22°C
MAY 10	24°C	22°C	22°C	22°C
MAY 11	24°C	23°C	22°C	23°C
MAY 12	24°C	23°C	23°C	23°C
MAY 13	24°C	23°C	23°C	24°C
MAY 14	24°C	23°C	22°C	24°C
MAY 15	24°C	23°C	23°C	23°C
MAY 16	24°C	24°C	22°C	24°C
MAY 17	24°C	24°C	23°C	25°C
MAY 18	24°C	24°C	23°C	24°C
MAY 19	24°C	25°C	24°C	25°C
MAY 20	24°C	24°C	23°C	25°C
MAY 21	25°C	24°C	24°C	25°C
MAY 22	24°C	25°C	25°C	26°C
MAY 23	25°C	25°C	24°C	26°C
MAY 24	25°C	25°C	24°C	26°C
MAY 25	25°C	25°C	24°C	26°C
MAY 26	26°C	25°C	24°C	26°C
MAY 27	27°C	25°C	25°C	26°C
MAY 28	27°C	25°C	24°C	27°C
MAY 29	27°C	25°C	24°C	25°C
MAY 30	27°C	25°C	24°C	27°C
MAY 31	28°C	25°C	24°C	27°C

May: Climate and Swimming Opportunities

Average Night Air Temperature

21°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

139 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

5 hrs

Average Wind Speed

11 km/h

Average Humidity

84%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.