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研究了西双版纳地区夜雨及雾雨的天气气候特征及时空分布规律，分析了夜雨、雾雨的形成机制及其农业气候意义。结果表明，本区降水呈夜雨与昼雨相均衡的状况，夜雨率达５４５％～５７７％，尤其是雾季和干热季可分别达７１４％、７０６％。夜雨形成多是山风环流造成的地形雨，雨强小，雨时长，因而对作物的有效性高。夜间雾雨则在作物生态环境中起着至关重要的作用，可部分缓解干旱季节作物需水的不足。因此，深入探讨夜雨和雾雨资源是制定有效防御干旱对策的重要依据。
The weather and climate distribution of night rain and foggy rain in Xishuangbanna were studied. The formation mechanism of rainy night and foggy rain and its agricultural climatic significance were analyzed. The results show that the precipitation in this area is balanced with the night rain and the daytime rain, and the night rain rate reaches 545% ~ 577%, especially in the foggy and dry-hot season, it can reach 714% and 706 respectively %. The formation of rainy night is mostly caused by the mountainous circulation of rain, strong rainfall, rain duration, and thus highly effective crops. Fog at night plays a crucial role in the crop ecological environment and can partially alleviate the shortage of crop water requirement during the drought season. Therefore, an in-depth discussion of night rain and fog rain resources is an important basis for formulating effective countermeasures against drought.