March typically marks the transition from Hawaii’s wetter winter season to its drier summer months. Expect daytime temperatures ranging from the mid-70s to low 80s Fahrenheit (low-to-mid 20s Celsius). Ocean temperatures are generally pleasant for swimming. Rainfall decreases compared to the winter months, though showers are still possible, especially on windward sides of the islands. The precise conditions can vary between islands and even within microclimates on a single island.
Understanding typical climatic conditions during this period allows for informed travel planning. Packing appropriate attire, scheduling outdoor activities, and selecting accommodations can be optimized based on expected sunshine, rainfall, and temperature. Historically, March offers a balance between pleasant weather and fewer crowds compared to peak season, making it an attractive time for visitors.