This is an older update. Read the latest Big Island update →Big Island update · 2026-04-20

Big Island: West Shore Calm, Brown Water Advisory Still Active

West-facing beaches like Hapuna and Spencer Beach Park provide sheltered, calm waters. Brown water advisory remains—check water quality before swimming.

Big Island: West Shore Calm, Brown Water Advisory Still Active beach conditions image

The Big Island’s west shore remains the best option for calm ocean conditions today, with Hapuna Beach Park and Spencer Beach Park offering small surf (1.4–2.2 ft) and lifeguard-monitored areas. A statewide brown water advisory continues due to storm runoff, warning against swimming in discolored or murky water. Avoid windward shores, river mouths, and areas with visible contamination. Stick to sheltered west-facing beaches and check the Hawaii Department of Health’s latest water quality updates before entering the water.

Recommended Beaches

Hapuna Beach Park

Big Island · Best window: midday

high confidence
  • Small surf (1.4 ft) with calm waters—ideal for swimming and sunbathing
  • Lifeguard-monitored and sheltered from windward chop
  • Patchy rain nearby but low wind (2.7 mph WNW)—best midday visibility
View beach page →

Spencer Beach Park

Big Island · Best window: morning

high confidence
  • Breakwall-protected cove with shallow, calm waters—safe for families and beginners
  • Less prone to runoff contamination due to sheltered location
  • Lifeguard on duty and dry picnic areas available
View beach page →

Carlsmith Beach Park

Big Island · Best window: afternoon

medium confidence
  • Protected lagoon with calm waters—good for wading and sea turtle sightings
  • Shaded areas provide shelter from sun
  • Avoid if water appears murky or discolored
View beach page →
Neighborhood: Hilo

Onekahakaha Beach Park

Big Island · Best window: midday

medium confidence
  • Artificial lagoon offers enclosed, calm swimming area—ideal for families
  • Grassy picnic areas provide dry refuge
  • Lifeguard-monitored, but check water clarity before entering
View beach page →
Neighborhood: Hilo

Richardson Ocean Park

Big Island · Best window: morning

medium confidence
  • Sheltered cove with calm waters—good for snorkeling if visibility is clear
  • Lifeguard on duty and picnic facilities available
  • Check water quality before entering due to runoff risks
View beach page →

Who Is This Update For?

🏄 Beginners

Stick to west-facing beaches like Hapuna or Spencer Beach Park—calm, lifeguarded waters are safest. Avoid windward shores, murky water, and areas with visible runoff. Pack sun protection and check for bacteria advisories before entering.

👨‍👩‍👧 Families

Hapuna and Spencer Beach Park are your best bets—shallow, calm waters and lifeguards. Supervise kids closely, even in sheltered areas. Bring snacks and plan indoor backups (e.g., Imiloa Astronomy Center) if conditions change.

🌊 Experienced

West shore beaches offer small to moderate surf (1.4–2.2 ft) for swimming or light snorkeling. Avoid windward shores—strong currents persist. Monitor water quality updates; conditions can shift quickly with runoff.

Full Briefing

Ocean Conditions

high

West-facing beaches (Hapuna, Spencer) offer the calmest conditions today, with small to moderate surf (1.4–2.2 ft) and relatively clear waters. A statewide brown water advisory remains in effect due to storm runoff, warning against swimming in discolored or murky water. Windward shores and river mouths are particularly risky—avoid areas with visible contamination. The Hawaii Department of Health advises treating all beach sites as potentially unsafe for swimming until further notice. Lifeguards are on duty at Hapuna and Spencer Beach Park.

Weather Snapshot

high

The Big Island’s west shore is partly cloudy today, with temperatures in the low 70s. Hapuna Beach Park reports 69.4°F with a 100% chance of patchy rain nearby, while Kahaluʻu Beach Park is at 70.4°F with light NNW winds (3.1 mph). Windward areas may experience slightly higher winds. Monitor updates from the National Weather Service for any changes.

News To Know

high

The Big Island’s beaches remain under a brown water advisory, with health officials warning that bacterial levels remain elevated due to recent Kona Low storms. No new beach closures have been announced, but visitors should continue to avoid discolored or murky water. Former Governor George Ariyoshi passed away at age 100, marking the loss of a significant local leader. For updates, check the Hawaii Department of Health’s latest water quality reports.

What Changed Since Yesterday

Quick Hits

  • West shore beaches (Hapuna, Spencer) are safest today—calm, clear waters and lifeguards.
  • Brown water advisory still in effect; avoid murky or discolored water.
  • Hapuna Beach Park has patchy rain nearby—best midday.
  • Have an indoor backup plan (e.g., museums, aquariums) if conditions change.
  • Check Hawaii Department of Health’s latest water quality updates before entering the water.

Disclaimer: This update is generated using AI and automated data sources including weather APIs, surf forecasts, and news feeds. It is not professional safety advice. Ocean conditions change rapidly and may differ from what is described here. Always check with on-site lifeguards, observe posted warning signs, and consult official sources such as the National Weather Service before entering the water. HawaiiYeah assumes no liability for injury, loss, or damage arising from use of this information. See our full disclaimer.

Join the Community

Stay Connected

Follow us for the latest beach updates, surf reports, and island vibes