Research was undertaken to assess the awareness of selected smallholder farmers on climate change issues, its effects on their agricultural production, and how they cope and/or adapt to climate change impacts. This article confirms that climate change impacts are already being observed and experienced by smallholder upland farmers in Indonesia and the Philippines. Farmers in the Philippines have observed stronger and more frequent rainfall and typhoons, while high temperatures have been prevailing in the upland areas of Indonesia. Among the observed effects include a higher incidence of pests and diseases, low crop productivity/yield, stunted growth, delays in fruiting and harvesting and a declining quality in the produce. The incidence of pests and diseases, including the growth of noxious weeds has also caused increase in labour costs. These circumstances have led to lower farm income. Results revealed that farmers make use of their local knowledge in addressing the effects of climate change. These include changing of their crops that would suit the changing rainfall pattern, integrating more crops to maximize the production, rejuvenation of trees, enrichment of crops, practice of agroforestry and rituals. Few farmers opted to get engaged with off-farm and non-farm activities. The results also point out the need to capacitate local institutions so that they could effectively communicate or disseminate information about the different climate change adaptation strategies that are appropriate in the farming communities within their respective areas, and strengthen the local knowledge of the upland farmers in adapting to the impacts of climate change.