Kauaʻi beach forecast
United States · 20 beaches and resorts
Veabird grades 20 beaches and resorts in Kauaʻi, United States, every six hours on seaweed, water, waves, weather and crowds. The most are in Kapaʻa, Poʻipū and Līhuʻe. These beaches sit outside the Atlantic sargassum belt, so seaweed is rarely a factor. Across the region, average highs run from about 78°F in January and February to 86°F in August and September, and the sea from about 75°F to 81°F. Rain is most likely in December and least likely in June.
This week, beach by beach
Kapaʻa
- Aston Islander on the BeachSatB+SunA-MonA-TueB+WedA-
- Coral Reef ResortSatB+SunA-MonA-TueB+WedA-
- Hilton Garden Inn Kauai Wailua BaySatB+SunA-MonA-TueB+WedA-
- Kaha Lani ResortSatB+SunA-MonA-TueB+WedA-
- Plantation Hale SuitesSatB+SunA-MonA-TueB+WedA-
- Pono Kai ResortSatB+SunA-MonA-TueB+WedA-
- Sheraton Kauai Coconut Beach ResortSatB+SunA-MonA-TueB+WedA-
- Waipouli Beach Resort & Spa Kauai by OutriggerSatB+SunA-MonA-TueB+WedA-
Poʻipū
- Grand Hyatt Kauai ResortSatA-SunBMonB+TueBWedB
- Kiahuna Plantation ResortSatA-SunBMonB+TueBWedB
- Koloa Landing Resort at PoipuSatA-SunBMonB+TueBWedB
- Lawai Beach ResortSatA-SunBMonB+TueBWedB
- Marriott’s Waiohai Beach ClubSatA-SunBMonB+TueBWedB
- Poipu Shores ResortSatA-SunBMonB+TueBWedB
- Sheraton Kauai ResortSatA-SunBMonB+TueBWedB
Līhuʻe
- Banyan Harbor ResortSatA-SunBMonB+TueB-WedB+
- Kauai InnSatA-SunBMonB+TueB-WedB+
- OUTRIGGER Kauaʻi Beach Resort & SpaSatB+SunA-MonA-TueB+WedA-
- The Royal Sonesta Kaua'i Resort LihueSatB+SunA-MonA-TueB+WedA-
Hanalei
- Hanalei Colony ResortSatA-SunB+MonB+TueB+WedB+
Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.
Weather & water by month
| Month | Avg high | Sea | Chance of rain |
|---|---|---|---|
| Jan | 78°F | 77°F | 40% |
| Feb | 78°F | 75°F | 35% |
| Mar | 79°F | 75°F | 38% |
| Apr | 80°F | 75°F | 32% |
| May | 82°F | 77°F | 25% |
| Jun | 84°F | 79°F | 20% |
| Jul | 85°F | 79°F | 25% |
| Aug | 86°F | 81°F | 22% |
| Sep | 86°F | 81°F | 22% |
| Oct | 84°F | 79°F | 30% |
| Nov | 82°F | 79°F | 38% |
| Dec | 79°F | 77°F | 42% |
Regional monthly averages from Veabird's climate table for Kauaʻi; resort pages add their own spot's numbers where available.
Seaweed cleanup & barriers
- Offshore barriers
- Not needed: Atlantic sargassum does not reach Hawaii.
- Public cleanup
- Volunteer groups (Sustainable Coastlines Hawaiʻi, Hawaiʻi Wildlife Fund) clear ocean plastic, heaviest on windward shores.
- Resort crews
- Resort crews groom beaches daily.
- Typical clearing time
- n/a
Safety notes
Domestic travel (no State Dept advisory)
- Winter swells (Nov–Mar) make north- and west-facing shores dangerous; summer swells hit south shores.
- Shorebreak and rip currents cause most visitor injuries: swim at lifeguarded beaches.
- Hawaiʻi bans sunscreens with oxybenzone and octinoxate.
- Stay 50 ft from monk seals and 10 ft from sea turtles.
- North shore (Hanalei, Princeville) is calm in summer and dangerous in winter; Poʻipū is the reverse.
- Flash floods close the Kūhiō Highway and Nā Pali trails after heavy rain.
Things to do in Kauaʻi
- Nā Pali Coast (boat or Kalalau Trail)
- Waimea Canyon
- Hanalei Bay
- Poʻipū beaches & Spouting Horn
- Wailua River kayak