Tropical savanna climate
The province is relatively dry from November to April and wet during the rest of the year for a small portion near the southern boundary. The other parts, west of Santa Cruz municipality, experience a dry season from November to April and rainy season during the rest of the year. The eastern and southernmost portions do not have distinct season, with rainfall more evenly distributed throughout the year. Laguna is classified under the Köppen climate classification as predominantly having a Tropical monsoon climate, mostly centered around the areas of Calamba to Calauan. The area stretching from Biñan to Cabuyao is classified as having a Tropical savanna climate, while the area from Luisiana to Pangil has a Tropical rainforest climate.