National Environment Agency (NEA) publishes monthly mean daily sunshine duration measured at the Changi Climate Station from 1982 through 2023. The CSV series pairs naturally with NEA temperature and rainfall collections for holistic climate monitoring in Singapore. Solar energy planners and environmental scientists can examine irradiance proxies over decades at the national reference site. Use this open-data collection for consistent long-run sunshine statistics aligned with Singapore’s official climate station network.
The monthly mean sunshine hours in a day recorded at the Changi Climate Station.
National Environment Agency monthly mean daily sunshine duration in hours at Changi Climate Station from January 1982 through June 2026. Climate researchers and planners use the long sunshine series for weather normals and outdoor activity planning in Singapore.