No METAR or TAF is being reported for ZSYN right now. Many smaller airports never publish one.
ZSSH Huai'an Lianshui · 108 km ZSLG Lianyungang Huaguoshan · 145 km ZSWX Sunan Shuofang (Wuxi) · 216 km ZSNJ Nanjing Lukou · 226 km ZSSS Shanghai Hongqiao · 270 km ZSPD Shanghai Pudong · 295 km ZSQD Qingdao Jiaodong · 326 km ZSOF Hefei Xinqiao · 342 km