Last 7 days
Today
30° / 23° High / Low (°C)
87% Humidity
4% Rain probability
Drizzle Condition
~2h Rain duration
What this means
In Honolulu on 21 Jun 2026, no rain is expected: 4% chance, 0.2 mm forecast (source: Open-Meteo).
Today should stay dry — just 4% chance of rain, and no more than 0.2mm if any falls. Safe to leave the umbrella at home.
Rain season
Honolulu has a gentle, year-round tropical climate with a wet season (November–March) when Pacific fronts bring the most rain, and a drier summer. Annual totals average 560mm in the city, though the Ko'olau Mountains directly behind Honolulu receive vastly more. Trade winds keep temperatures comfortable year-round. Severe weather is rare; tsunami risk from Pacific earthquakes is the greater natural hazard.
Elsewhere in United States