What is the average temperature in Oʻahu in winter?

Last updated: 2026-05-23

Oʻahu winter (December-February) averages 65-80°F at sea level. Highs run 78-82°F; lows 65-70°F. Trade winds keep it pleasant. Rainfall peaks November-March, especially on the windward (eastern) side. Upland elevations (Pālolo, upper Mānoa) can drop to 55°F at night — pack a light layer.