Climate change is a proven and burning issue in this world. It has visibly impacted different nations. From this research on Gharapjhong Rural Municipality of Mustang district of country Nepal, it is again proved that the climate at the local level has been experiencing increasing trends of both precipitation and temperature as per the data from 1988 to 2017. The study was conducted to study the impact of climate change on agriculture of the Mountainous area of Nepal i.e. Gharapjhong Rural Municipality of Mustang District. Field observation, Questionnaire survey, Key Informant Interview, and Focus Group Discussion was carried out to obtain primary data whereas; secondary data were collected from the Department of Hydrology and Meteorology, Ministry of Agriculture and Livestock Development, Budget program for Gharapjhong Rural Municipality (2074/2075), authorized report and papers. Different trend analyses and correlations were plotted to validate the research objectives. The analysis of productivity trend (1999/00- 2016/17) was found to be increased in maize, potato, barley whereas decrement of trend in wheat and oilseed. Apple productivity data from the year 2012/13 to 2016/17 also shows linear increments. Both the agricultural data analysis part and local people’s experience part show similar outcomes, i.e. positive as well as negative impact on agricultural production due to climate change. Analysis of sales of chemical fertilizers data (2013/14 to 2016/17) shows the increasing trend of chemical fertilizers. The majority of the respondents are practicing inter-cropping, planting new crops, increasing the use of biofertilizers and pesticides. Whereas, every respondent is using an irrigation system to cope with an increasing climatic trend.

Keywords : Climate change, Impact, Agriculture, Adaptation, Gharapjhong Rural Municipality.