Coastal tourism is one of the most attractive and a popular activity all over the world which is growing fast and has been transmuted into a multi-purpose activity. In this regard, weather conditions and climatic circumstances are considered factors effective on tourism industry and generally life, health and welfare of human beings. Considering climatic circumstances, we can choose type of tourism attraction and plan specifically. One of the methods through which the extent of welfare can be investigated bioclimaticaly is Becker method.In order to statistically evaluate the bioclimatic circumstances of human being in coastal line of Guilan province, climatic elements such as temperature (minimum and maximum) and wind speed were collected for a period of 20 years from synoptic stations in Astra, Anzali, Rasht and Ramsar. Ramsar station was selected as a neighboring and climatically similar station and due to absence of a synoptic station with 20-year data in East of Guilan province.Evaluating the 4 stations according to Becker index showed that costal line in Guilan possesses optimal and relatively optimal climatic circumstances at least during 7 months of a year.

Sustainable development of rural tourism is based on a holistic approach to realization and continuance of development processes in the environmental dimensions of tourism target villages. Sustainable development can be achieved if the overlap is created between different dimensions. This means that each social system achieves a desirable level of sustainability to make it possible to judge sustainability. The community of tourism target villages has undergone extensive changes influenced by trends and policies of recent decades, but evidence shows that villages are moving towards unsuitability, and especially social unsuitability. The aim of the present study is to rank socio-cultural sustainability of tourism based on VIKOR model in tourism target villages of Noor city. It also aims to identify and design a network analysis process for determining the sustainable development of tourism, explain the links between elements and factors affecting sustainability using a descriptive-analytic methodology, and rank dimensions of rural tourism sustainability. The data were collected using library and field methods from 310 households that were selected as the research sample through Cochran formula. The results of the study showed that the protection of cultural patterns was ranked as the first sociocultural dimension (R=0.713, S=0.250, & Q=1), while awareness rising was ranked seventh (Q=0.000).