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Haikou Weather in May

The rainy season starts from May, with a total rainfall of 183 millimeters (7.2 inches) and the number of rainy days at 16 for the month. The average temperature is 28.1°C (82.6°F), with a minimum temperature of 24.2°C (75.6°F) and a maximum temperature of 32 °C (89.6°F).

May marks the beginning of summer, with the temperature and rainfall increasing continually. And May is when typhoons begin to appear. Summer clothing like T-shirts and a light jacket are enough for the month, and bring a light coat or a cardigan for early morning or evening coolness. Ultraviolet radiation is a little stronger since the sun shines brighter, so bring sunscreen to protect your skin. Since rainfall is frequent, bring an umbrella. May is the peak travel season, and you can expect higher hotel rates and crowded tourist attractions. If you plan to visit Haikou during May, book in advance.

Haikou Average Daily Temperatures Based on Historical Data

Date Average High Average Low
May   1 87 °F 30.56 °C 73 °F 22.78 °C
May   2 88 °F 31.11 °C 74 °F 23.33 °C
May   3 88 °F 31.11 °C 74 °F 23.33 °C
May   4 88 °F 31.11 °C 74 °F 23.33 °C
May   5 88 °F 31.11 °C 74 °F 23.33 °C
May   6 88 °F 31.11 °C 74 °F 23.33 °C
May   7 88 °F 31.11 °C 74 °F 23.33 °C
May   8 88 °F 31.11 °C 74 °F 23.33 °C
May   9 89 °F 31.67 °C 74 °F 23.33 °C
May   10 89 °F 31.67 °C 75 °F 23.89 °C
May   11 89 °F 31.67 °C 75 °F 23.89 °C
May   12 89 °F 31.67 °C 75 °F 23.89 °C
May   13 89 °F 31.67 °C 75 °F 23.89 °C
May   14 89 °F 31.67 °C 75 °F 23.89 °C
May   15 89 °F 31.67 °C 75 °F 23.89 °C
May   16 89 °F 31.67 °C 75 °F 23.89 °C
May   17 89 °F 31.67 °C 75 °F 23.89 °C
May   18 89 °F 31.67 °C 75 °F 23.89 °C
May   19 89 °F 31.67 °C 75 °F 23.89 °C
May   20 89 °F 31.67 °C 76 °F 24.44 °C
May   21 90 °F 32.22 °C 76 °F 24.44 °C
May   22 90 °F 32.22 °C 76 °F 24.44 °C
May   23 90 °F 32.22 °C 76 °F 24.44 °C
May   24 90 °F 32.22 °C 76 °F 24.44 °C
May   25 90 °F 32.22 °C 76 °F 24.44 °C
May   26 90 °F 32.22 °C 76 °F 24.44 °C
May   27 90 °F 32.22 °C 76 °F 24.44 °C
May   28 90 °F 32.22 °C 76 °F 24.44 °C
May   29 90 °F 32.22 °C 76 °F 24.44 °C
May   30 90 °F 32.22 °C 76 °F 24.44 °C
May   31 90 °F 32.22 °C 76 °F 24.44 °C

Haikou Climate Information by Month