May sees warm weather during the day and coolness at night. The maximum temperature is 28 °C (82 °F) and the minimum temperate is 12 °C (54 °F). The temperature difference between day and night is significant. A T-shirt and a light jacket are enough but wear more clothing to stay warm in the evening. The rainfall is higher than in previous months. It is not so dry and ultraviolet radiation is strong. If you are outdoors for a long time, wear sunscreen with SPF 12– 15 and with PA + to protect your skin.
May falls during the peak travel season. At this time, hotel rates are often higher than usual and tourist attractions are crowded. If you plan to visit Tianjin during this period, book in advance.