Hawaii · United States
September
The most underrated month — summer weather persists as crowds and prices drop sharply after Labor Day.
Best match
#4 of 12 months
There are better months for Hawaii — see the full ranking below.
See when to go instead →Climate
High
31°C
Low
25°C
Rain
22mm
Sun
8.5hrs/day
30-year climate normals · Open Meteo ERA5
How September scores in Hawaii
Weather
Outstanding
Value
Good
Crowds
Good
Events
Above average
Atmosphere
Excellent
What you gain in September
- ↑US Labor Day (first Monday in September) marks the end of peak summer travel, and the weeks following see a dramatic drop in both visitor numbers and accommodation pricing — Hawaii in mid-to-late September has near-identical weather to July and August at 30–40% lower rates
- ↑Beaches across all islands feel meaningfully calmer after school returns: Waikiki is walkable again, Hanauma Bay snorkel reservations become easier to obtain, and Maui's most popular beaches offer parking without the dawn-arrival requirement of July
- ↑Ocean conditions remain excellent into September — water temperature peaks in September at approximately 27°C, swell activity is minimal, and snorkelling visibility is at its clearest of the year; this is the finest month for underwater Hawaii
What you sacrifice
- ↓Labor Day weekend itself (first weekend of September) still carries peak-season pricing and crowds — the drop-off happens in the week following, not on the holiday weekend itself
- ↓Hurricane season (June–November) peaks in September for the Central Pacific — while strikes on Hawaii are rare, late-season tropical activity can occasionally generate swells that affect north-facing beaches; monitor forecasts
- ↓Some seasonal beach concessions and activity operators begin to reduce hours in late September as the primary summer season winds down; early morning and late afternoon options can narrow at some smaller beach parks
How September compares to May (best month)
| Factor | September | May ★ |
|---|---|---|
| Weather | 9 | 9 |
| Value | 6 | 7 |
| Crowds | 6 | 7 |
September in other destinations
Lisbon (24.6°C)Barcelona (25.5°C)Tokyo (28.1°C)Bali (30.4°C)Santorini (24.1°C)Paris (21.6°C)New York (23.9°C)Marrakech (31.6°C)Amsterdam (18.8°C)Maldives (30.2°C)Rome (26.5°C)Bangkok (31°C)Istanbul (24.2°C)Vienna (22.1°C)Seoul (25.1°C)Dubrovnik (24.9°C)Rio de Janeiro (27.3°C)Kyoto (28.6°C)Phuket (31°C)Cape Town (19°C)Prague (21°C)Amalfi Coast (27°C)Mexico City (22°C)Medellín (28°C)Fiji (27°C)London (20°C)Sydney (20°C)Iceland (10°C)Tulum (32°C)Dubai (39°C)Singapore (32°C)Hoi An (31°C)Chiang Mai (31°C)Miami (32.8°C)Florence (26.3°C)Queenstown (12.5°C)Madrid (28.7°C)Porto (25°C)Edinburgh (16°C)Copenhagen (18°C)Budapest (23°C)Kraków (19°C)Tbilisi (26°C)Palawan (30°C)Hanoi (31°C)Osaka (29°C)Goa (30°C)Cusco (20°C)Buenos Aires (18°C)Mykonos (27°C)Zanzibar (27°C)Sri Lanka (30°C)Costa Rica (24°C)Cancun (31°C)Krabi (31°C)Athens (29°C)Seville (31°C)Cartagena (31°C)Siem Reap (31°C)Havana (31°C)Split (26°C)Taipei (31°C)Kuala Lumpur (32°C)Valletta (29°C)Ho Chi Minh City (32°C)Cappadocia (27°C)Dominican Republic (31°C)Jamaica (32°C)Tanzania (25°C)Seychelles (27°C)Nepal (26°C)Jordan (32°C)Azores (25°C)Bora Bora (27°C)Los Angeles (28.1°C)Cairo (35.9°C)Kenya (25.3°C)Jaipur (32.1°C)Las Vegas (36.2°C)San Francisco (20.8°C)Madeira (26.5°C)Vancouver (19.2°C)Muscat (38.1°C)Lima (17.8°C)Cinque Terre (25°C)Kotor (27°C)Tel Aviv (30°C)Santiago (18°C)Bogotá (18°C)Bruges (19.2°C)Penang (31.8°C)Lombok (31°C)Cape Verde (29.2°C)Fez (32.8°C)Kerala (30°C)Kigali (27°C)Hong Kong (29°C)Oslo (18°C)Auckland (16°C)
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Hawaii, not across destinations. Methodology →