Hawaii Weather in March: What to Expect

March in Hawaii is early spring — warm, mostly dry, and pleasant across the islands.

Typical Conditions

• Temperatures: Daytime highs 78–82°F (26–28°C); nights ~70°F (21°C).
• Rainfall: One of the drier months — avg ~2.5 in (64 mm) statewide. Brief, passing showers (windward sides); leeward coasts (Waikīkī, Kona, Kihei) often rain-free.
• Humidity: ~75% — noticeable but comfortable with trade winds.
• Ocean temp: 75–80°F (24–27°C) — excellent for swimming, snorkeling, surfing.
• Trade winds: NE trades 10–20 mph; consistent, cooling.

Island Variations

• Kauaʻi (North Shore): Wetter — lush, waterfalls flowing.
• Big Island (Hilo vs. Kona): Hilo wet (10+ in); Kona dry/sunny.
• Maui (Hana vs. Wailea): Windward wet, leeward dry.

Events

Honolulu Festival (early Mar), Whale season peaks (Maui), Kona Brewers Festival, Prince Kuhio Day (Mar 26 — state holiday).

Pack: Light layers, reef-safe sunscreen, light rain jacket, swimwear. No heavy gear needed.