SANYA

natural conditions Wind conditions: The usual wind is northeast wind, and the seasonal wind direction is southwest wind. May to November is the typhoon season, with wind speeds reaching 40 meters per second and wind speeds of 10-12 levels. There are 3-4 typhoons that invade the port every year. When typhoons invade, the water in Sanya rises and the waves are large, which has a significant impact on port production. Precipitation: The annual average precipitation is 1263 millimeters. During the rainy season from June to October and typhoon season, there is often an increase in rainfall. The precipitation accounts for 90.2% of the annual total. Foggy conditions: Sanya Port has no fog all year round. Temperature: The annual average temperature is 25.5 ℃, with the highest temperature in July, with a monthly average of 28.3 ℃, and the lowest temperature in January, with a monthly average of 20.7 ℃. Tide: It is an irregular diurnal tide type, mainly consisting of diurnal tide. There are 14 days of diurnal tide per month, and the highest tide level during diurnal tide is 2.2 Meter, lasting for 16 hours, with a minimum tide level of 0.6 meters, an average tide level of 1.03 meters, a maximum tidal range of 2.26 meters, and a minimum tidal range of 0.06 meters. The average tidal range is 0.79 meters. Tide: During high tide, the water is divided into two tributaries, one flowing southeast through the dock and entering the Sanya River with a flow rate of 0.35 meters per second; The other one flows northwest from the gap of Baipai Reef, with a flow rate of 0.35 meters per second. The ebb tide flows in opposite directions, with flow velocities of 1.08 meters per second and 0.07 meters per second, respectively. The ebb tide lasts for 8 hours, and sediment is carried into the sea by the ebb tide, resulting in less sedimentation in the harbor basin. Navigation assistance information Channel: The water area of the channel is 70000 square meters, with a total length of 1650 meters. The old channel is 400 meters long, 35 meters wide, 3.5 meters deep, and has an azimuth of 283 degrees and 30 minutes. The main channel (new channel) is 1250 meters long, 45 meters wide, 7 meters deep, and has an azimuth angle of 248 degrees. Anchorage: It has one quarantine pilot anchorage, one loading and unloading dock anchorage, and one typhoon prevention anchorage. The quarantine pilot anchorage is located at 18 degrees 11 minutes 0 seconds north latitude and 109 degrees 26 minutes 0 seconds east longitude, with a water depth of 2.8 meters and a mud bottom. It can accommodate several tens of thousands of tons of ships; The loading and unloading anchorage is located at latitude 18 degrees 13 minutes 07 north, longitude 109 degrees 27 minutes 0 seconds east, with a water depth of 9.2 meters and a mud bottom. It can accommodate more than 10 10000 ton ships and avoid typhoons of level 12.