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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Sanya Distance
Sanya 0.0 km
Sanya Phoenix Intl. Airport 11.9 km
Shan Xian 48.4 km
Dongfang 105.0 km
Qionghai 112.4 km
Haikou 115.2 km
Haikou Airport 123.3 km
Beihai 128.3 km
Quảng Ngãi 139.5 km
Zhanjiang 150.0 km
Da Nang Intl. Airport 166.6 km
Qinzhou 168.2 km
Móng Cái 208.7 km
Bạch Long Vĩ 211.4 km
Nanning 214.5 km
Nanning/Wuxu AP 216.4 km
Xinyi 223.4 km
Huế 224.4 km
Sanhu Dao 243.0 km
Yangjiang 307.9 km
Xisha Dao 318.4 km
Attapeu 321.5 km
Đồng Hới 325.7 km
Lạng SƠn 330.4 km
Sekong 330.9 km
Phu Lien 332.9 km
Longzhou 339.5 km
Salavan 354.2 km
Nam Định 382.1 km
Shangchuandao 388.0 km
Cao Bằng 393.7 km
Hà Tĩnh 402.6 km
Thanh Hóa 418.7 km
Noi Bai Intl. Airport 424.2 km
Thái Nguyên 425.4 km
Vinh Airport 427.0 km
Hà Đông district 427.4 km
Bắc Kạn 430.6 km
Taipa Airport 478.4 km
Pakse 495.0 km
Seno 505.4 km
Ubon Ratchathani Agromet 508.7 km
Shenzhen Bao'an Intl. Airport 509.6 km
Lau Fau Shan 526.7 km

Current weather