Outrigger Kona Resort & Spa beach forecast: weather, water & waves
Keauhou, HI · Hawaiʻi Island (Big Island), United States · 19.558, -155.965
Updated : very low seaweed, beach grade A-, sea 80°F.
Veabird's call
Go Sunday for A-, little seaweed, mostly dry weather and 80°F water.
December and October grade A-, and Kealakekua Bay is close for a calmer outing.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 15, 18:00 UTC.
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Questions about Outrigger Kona Resort & Spa
Does Outrigger Kona Resort & Spa get sargassum (seaweed)?
No. Atlantic sargassum does not reach Hawaii.
How warm is the water at Outrigger Kona Resort & Spa?
About 80°F in November. The sea is warmest in August and September (about 82°F) and coolest in March (about 77°F).
When is the best time to visit Outrigger Kona Resort & Spa?
For warm water and dry weather, aim for October through February. October is usually the quietest of those, with about 15 rainy days and a sea near 81°F.
When is hurricane season at Outrigger Kona Resort & Spa, and how often do storms hit?
The central Pacific hurricane season runs June through November. A tropical storm passed within 86 miles of Outrigger Kona Resort & Spa in 4 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 0. The riskiest stretch is around July 30, when the chance of a storm passing in any one week is about 1% or less; across all of August it is about 3%.
What guests say about OUTRIGGER Kona Resort and Spa
Guests like Family-friendly · Exceptional service
Watch for None noted or issues with cleanliness
- Cleanliness
8.0 - Service
9.0 - Location
8.5 - Room Quality
8.5 - Amenities
8.5 - Value for Money
8.5 - Food and Beverage
8.5 - Overall Experience
8.5
Read all 640 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.
Sargassum season at Outrigger Kona Resort & Spa
Outrigger Kona Resort & Spa sits outside the reach of the Atlantic sargassum belt; seaweed landings are rare in any month.
The Big Island month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit the Big Island.
Weather & water by month at Outrigger Kona Resort & Spa
Average highs run from about 78°F in January and February to 83°F in August. The sea is warmest in August and September (about 82°F) and coolest in March (about 77°F). January and November are usually the driest, with about 11 rainy days each; June is the wettest, with about 23 rainy days.
| Month | Avg high | Sea | Rainy days |
|---|---|---|---|
| Jan | 78°F | 78°F | 11 |
| Feb | 78°F | 78°F | 12 |
| Mar | 79°F | 77°F | 17 |
| Apr | 79°F | 78°F | 18 |
| May | 80°F | 79°F | 20 |
| Jun | 80°F | 80°F | 23 |
| Jul | 82°F | 81°F | 19 |
| Aug | 83°F | 82°F | 18 |
| Sep | 82°F | 82°F | 17 |
| Oct | 82°F | 81°F | 15 |
| Nov | 81°F | 80°F | 11 |
| Dec | 80°F | 79°F | 12 |
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.
- Vog (volcanic haze) can affect air quality; check the Hawaiʻi Volcano Observatory.
- Hilo side is much wetter than the Kona–Kohala resort coast.
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Keauhou, HI
- Hawaiʻi Volcanoes National Park
- Manta ray night snorkel (Kona)
- Kealakekua Bay
- Maunakea stargazing
- Punaluʻu black sand beach
Fly in for the best beach days
Suggested dates are a week in December. Change them to match the live forecast above.
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Nearest airports
- Kona Intl (KOA), ~22 km
- Hilo Intl (ITO), ~98 km
Nearby resorts
- Kona Coast Resort Keauhou, HI · 1 km
- Kona By The Sea Kailua-Kona, HI · 7 km
- Royal Sea Cliff Resort by Outrigger Kailua-Kona, HI · 7 km
- Kona Reef Resort Kailua-Kona, HI · 8 km
- Royal Kona Resort Kailua-Kona, HI · 9 km
- Kona Islander Inn & Hotel Kailua-Kona, HI · 9 km
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