This is an older update. Read the latest Big Island update →Big Island update · 2026-05-09

Big Island Beach Conditions Today

Surf, weather, safety alerts, and the best beaches for 2026-05-09.

At a glance

Best beach
Hapuna Beach Park
Best time
midday
Confidence
high
Water advisories
2 active

Active water advisories

Big Island: Calm West Shore, Volcanic Ash Advisory Near Kīlauea beach conditions image

The Big Island's west shore continues to deliver calm ocean conditions today, but a brown water advisory remains in effect for Hilo Bay and the Hamakua Coast, and a volcanic ash advisory is active for areas north/northwest of Halemaʻumaʻu following Kīlauea's 46th eruption of 2026. Hapuna Beach Park and Spencer Beach Park are the safest picks for swimming, with small surf (2 ft) and lifeguards on duty. Avoid beaches in the advisory zones, and check air quality updates if you're sensitive to volcanic ash. Pack sun protection and monitor Hawaii Department of Health and NWS advisories before heading out.

Recommended Beaches

Hapuna Beach Park

Big Island · Best window: midday

high confidence
  • Small surf (2 ft) and lifeguard-monitored areas-safest swimming on the island today
  • Partly cloudy skies, light NNE winds (3.1 mph), and picnic facilities ideal for families
  • Outside brown water and ashfall advisory zones-lower risk of contamination
View beach page →

Spencer Beach Park

Big Island · Best window: morning

high confidence
  • Breakwall-protected cove with shallow, calm waters-perfect for families and beginners
  • Lifeguard on duty and picnic areas available
  • No active advisories-safe for swimming and snorkeling
View beach page →

Carlsmith Beach Park

Big Island · Best window: midday

medium confidence
  • Shallow, protected waters with resident sea turtles-great for snorkeling and wading
  • Lifeguard-monitored and less crowded than other west shore beaches
  • Outside advisory zones-lower risk of contamination
View beach page →
Neighborhood: Hilo

Richardson Ocean Park

Big Island · Best window: afternoon

medium confidence
  • Sheltered cove with calm waters-good for light snorkeling if visibility is clear
  • Lifeguard on duty and picnic tables available
  • Lower risk of brown water contamination compared to windward areas
View beach page →
Neighborhood: Hilo

Onekahakaha Beach Park

Big Island · Best window: morning

medium confidence
  • Protected lagoon with calm waters-ideal for families and beginner swimmers
  • Lifeguard on duty and picnic facilities available
  • Outside brown water advisory zone-safer for swimming
View beach page →

Full Briefing

Ocean Conditions

high

West-facing beaches (Hapuna, Spencer) offer the calmest conditions today, with small surf (2-3 ft) and clear waters. A brown water advisory remains active for Hilo Bay and the Hamakua Coast-avoid swimming in these areas until the advisory lifts. Light winds (2.9-3.1 mph) prevail, with Kahaluʻu Beach Park experiencing slightly breezier conditions (SW winds). No active surf advisories, but avoid murky or discolored water, especially near river mouths or after rain. Volcanic ash may affect water clarity near Kīlauea's eruption zone.

Weather Snapshot

high

The Big Island's west shore is partly cloudy today, with temperatures around 70°F. Hapuna Beach Park reports partly cloudy skies with light NNE winds (3.1 mph). Kahaluʻu Beach Park has a 60% chance of patchy rain nearby and light SW winds (2.9 mph). Volcanic ash advisories are in effect for areas north/northwest of Halemaʻumaʻu-check NWS updates if sensitive to ash. No significant rain expected, but gusty easterly winds (up to 22 mph) may affect air quality near the eruption zone.

News To Know

medium

A brown water advisory remains in effect for Hilo Bay and the Hamakua Coast-avoid swimming in these areas. Kīlauea's 46th eruption of 2026 has triggered an ashfall advisory for areas north/northwest of Halemaʻumaʻu, which may affect air quality and coastal zones. A tourist was caught on video throwing a rock at an endangered Hawaiian monk seal on Maui, sparking outrage and calls for stricter wildlife protections. FEMA funding is available for victims of the March Kona Low floods-visit a local recovery center for assistance.

Quick Hits

  • Hapuna Beach Park is the safest swim spot today-small surf (2 ft) and lifeguards.
  • Spencer Beach Park offers protected, shallow waters-ideal for families.
  • Avoid Hilo Bay and Hamakua Coast due to brown water advisory-check DOH updates.
  • Volcanic ash may affect air quality near Kīlauea-monitor NWS advisories.
  • Tourist caught harming monk seal on Maui-respect wildlife and keep distance.

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