Weather in Honolulu in September
Honolulu, United States averages a high of 28.2°C (82.8°F) and low of 24.3°C (75.7°F) in September, with 6 rain days and 11.7 hours of daily sunshine. Travel score: 86.4/100 (Excellent). The best time to visit Honolulu is September.
High
28°C83°F
Low
24°C76°F
🌧️
6
rain days
☀️
11.7
hrs/day sunshine
💧
73%
humidity
86— Excellent
September in Honolulu is hot and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Honolulu?
How much does it rain in Honolulu in September?
Honolulu receives an average of 19.5mm of rainfall across 6 rainy days in September. The annual total is 402.9mm.
What should I pack for Honolulu in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31