Ewa Hotel beach forecast: weather, water & waves
Waikīkī, HI · Oʻahu, United States · 21.273, -157.821
Seaweed, water and beach grades update every 6 hours; live conditions load below.
Also listed as Ewa Hotel Waikiki.
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Questions about Ewa Hotel
Does Ewa Hotel get sargassum (seaweed)?
No. Atlantic sargassum does not reach Hawaii.
How warm is the water at Ewa Hotel?
About 80°F in October. The sea is warmest in September (about 81°F) and coolest in March (about 76°F).
When is the best time to visit Ewa Hotel?
For warm water and dry weather, aim for September through February. September is usually the quietest of those, with about 15 rainy days and a sea near 81°F.
When is hurricane season in Oʻahu?
The central Pacific hurricane season runs June through November. Storms rarely reach Oʻahu; Veabird rates the risk here as low.
What guests say about Ewa Hotel Waikiki
Guests like Location · Friendly staff · Proximity to beach
Watch for Cleanliness issues · Poor maintenance · Inadequate room service
- Cleanliness
4.5 - Service
8.0 - Location
9.0 - Room Quality
6.5 - Amenities
6.0 - Value for Money
7.5 - Food and Beverage
7.0 - Overall Experience
7.5
Read all 1,368 reviews · Compare on Expedia
Scores and reviews come from guests who stayed, through LiteAPI (Nuitée). The likes, watch-fors and category scores are an AI summary of those reviews. Partner links: Veabird may earn a commission.
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Where to stay nearby
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Sargassum season at Ewa Hotel
Ewa Hotel sits outside the reach of the Atlantic sargassum belt; seaweed landings are rare in any month.
Weather & water by month at Ewa Hotel
Average highs run from about 78°F in February to 85°F in August and September. The sea is warmest in September (about 81°F) and coolest in March (about 76°F). January is usually the driest, with about 12 rainy days; April and July are the wettest, with about 20 rainy days.
| Month | Avg high | Sea | Rainy days |
|---|---|---|---|
| Jan | 79°F | 77°F | 12 |
| Feb | 78°F | 77°F | 13 |
| Mar | 79°F | 76°F | 17 |
| Apr | 80°F | 77°F | 20 |
| May | 81°F | 78°F | 19 |
| Jun | 83°F | 79°F | 16 |
| Jul | 83°F | 79°F | 20 |
| Aug | 85°F | 80°F | 16 |
| Sep | 85°F | 81°F | 15 |
| Oct | 84°F | 80°F | 15 |
| Nov | 82°F | 79°F | 14 |
| Dec | 79°F | 78°F | 13 |
Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Any given year can differ.
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.
- Box jellyfish can reach leeward beaches 8–10 days after a full moon.
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Waikīkī, HI
- Pearl Harbor National Memorial
- Hanauma Bay snorkeling (reservations)
- Diamond Head hike
- North Shore surf (winter)
- Lanikai & Kailua beaches
Fly in for the best beach days
Suggested dates are a week in November. Change them to match the live forecast above.
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Nearest airports
- Honolulu Intl (HNL), ~12 km
Nearby resorts
- Hyatt Place Waikiki Beach Waikīkī, HI · 0 km
- Hotel Renew Waikīkī, HI · 0 km
- Queen Kapiolani Hotel Waikīkī, HI · 0 km
- Park Shore Waikiki Waikīkī, HI · 0 km
- Waikiki Beach Marriott Resort & Spa Waikīkī, HI · 0 km
- 'Alohilani Resort Waikiki Beach Waikīkī, HI · 0 km
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