We have produced a Reference Guide for the climate of Sri Lanka its impacts and related fields. This work was supported by the National Science Foundation, Sri Lanka and the IRI. Around 1,400 references on weather and climate and their impacts on activities such as agriculture, fisheries, water resources, energy, health and disasters are compiled here. References on the relationship between the oceans, land and water on weather and climate are included. References that are of interest from historical, archaeological and policy perspectives are included as well. The compilation in cognate fields is limited to references that have a direct bearing on weather and climate. References on South Asian and Indian Ocean that bear on Sri Lanka are included.