Best time to cruise · Best time to go
Hawaii cruises in September
September is a sweet spot: warm, mostly dry, with kids back in school and lower fares. The Aloha Festivals bring Hawaiian music, a royal court and a floral parade to Oʻahu. Late in the month, ships finishing the Alaska season start repositioning to Hawaii, adding one-way options from Vancouver.
- Best time to go
- Avg high 80°F
- 12 hrs daylight
Photo: Farragutful, CC BY-SA 4.0, via Wikimedia Commons
Hawaii in September: Best time to go
September is a sweet spot: warm, mostly dry, with kids back in school and lower fares. The Aloha Festivals bring Hawaiian music, a royal court and a floral parade to Oʻahu. Late in the month, ships finishing the Alaska season start repositioning to Hawaii, adding one-way options from Vancouver.
Across Hawaii cruise ports, September brings average highs around 80°F (27°C) and lows near 71°F, with about 2.1 inches of rain over the month and roughly 12 hours of daylight.
- Verdict
- Best time to go
- Season
- Year-round; humpback whales December to April. Best weather-and-value months April to May and September to October.
- Average high / low
- 80°F / 71°F
- Rainfall (month)
- 2.1 in
- Daylight
- About 12 hours
- Typical cruise length
- 7 nights inter-island from Honolulu; 14 to 17 nights from the West Coast
What to pack: light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms.
How September compares with the rest of the year
- Jan: Best time to go
- Feb: Best time to go
- Mar: Best time to go
- Apr: Good time to go
- May: Best time to go
- Jun: Good time to go
- Jul: Good time to go
- Aug: Good time to go
- Sep: Best time to go
- Oct: Good time to go
- Nov: Good time to go
- Dec: Good time to go
- No regular sailings
- Shoulder season
- Good time to go
- Best time to go
Hawaii weather in September
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F (°C) | 6920 | 6920 | 7021 | 7222 | 7424 | 7825 | 8027 | 8127 | 8027 | 7826 | 7323 | 6921 |
| Low °F (°C) | 6217 | 6116 | 6217 | 6418 | 6619 | 6820 | 7122 | 7222 | 7122 | 6921 | 6619 | 6217 |
| Rain in (mm) | 4.1103 | 3.793 | 4.3110 | 3.075 | 2.255 | 1.539 | 1.334 | 1.947 | 2.152 | 2.974 | 3.897 | 4.6116 |
| Daylight (hrs) | 10 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | 11 | 10 |
September weather port by port
| Port | Avg high | Avg low | Rain | Daylight |
|---|---|---|---|---|
| Honolulu | 84°F | 79°F | 2.7 in | 12 h |
| Kahului (Maui) | 82°F | 78°F | 1.7 in | 12 h |
| Hilo | 84°F | 76°F | 4.4 in | 12 h |
| Kona (Kailua-Kona) | 82°F | 80°F | 1.8 in | 12 h |
| Nawiliwili (Kauai) | 82°F | 79°F | 1.8 in | 12 h |
| Los Angeles | 75°F | 68°F | 0.2 in | 12 h |
| San Diego | 89°F | 68°F | 0.4 in | 12 h |
| San Francisco | 77°F | 58°F | 0.2 in | 12 h |
| Vancouver | 69°F | 56°F | 5.4 in | 13 h |
Average daily highs and lows, 2015–2024, from NASA POWER, adjusted to sea level. Rain is the average monthly total.
Other great cruise destinations in September
- Canada & New England in September
- Pacific Coastal in September
- Mediterranean in September
- Western Mediterranean in September
- Eastern Mediterranean & Adriatic in September
- Greek Isles in September
- Western Europe in September
- Tahiti & the South Pacific in September
- Danube River in September
- Rhine River in September
See every destination for September, with a port weather map →
Hawaii in September: FAQs
Is September a good time to cruise Hawaii?
Yes, it's one of the best months. September is a sweet spot: warm, mostly dry, with kids back in school and lower fares. The Aloha Festivals bring Hawaiian music, a royal court and a floral parade to Oʻahu. Late in the month, ships finishing the Alaska season start repositioning to Hawaii, adding one-way options from Vancouver.
What is the weather like on a Hawaii cruise in September?
Across Hawaii cruise ports, September brings average highs around 80°F (27°C) and lows near 71°F, with about 2.1 inches of rain over the month and roughly 12 hours of daylight. Conditions vary from port to port and day to day.
What should I pack for a Hawaii cruise in September?
Pack light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms. Check your cruise line's dress code for evenings.
When is the best time to cruise Hawaii?
Year-round; humpback whales December to April. Best weather-and-value months April to May and September to October.. The best months are usually January, February, March, May, September.
Where else can I cruise in September?
September is also a top month for Canada & New England, Pacific Coastal, Mediterranean, Western Mediterranean, Eastern Mediterranean & Adriatic.
Updated November 2026 by the BookMyDreamCruise editorial team. How we research and fact-check.
Sources: NASA POWER climate data.