🌤 Weather at Wailoa River State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 65–81 °F | 69–83 °F | 68–83 °F | 64–79 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Hilo Intl Airport, 1 mi away, elevation 38 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Wailoa River State Park is a public state park in Hawaii near Hilo. Spanning 132 acres and established in 1969, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | Hawaii |
| Nearest City | Hilo |
| Park Size | 132 acres |
| Established | 1969 |
| Google Rating | ⭐ 4.4/5 (350 reviews) |
Location & Getting There
Wailoa River State Park is located near Hilo, Hawaii. The park’s coordinates are 19.7186, -155.0750.
Things to Do
Hawaii state parks protect some of the most stunning landscapes on Earth — from active volcanic calderas and tropical rainforests to pristine coral reef bays and dramatic sea cliffs. Activities include hiking through lush valleys and along volcanic crater rims, snorkeling in crystal-clear protected bays, swimming at world-class tropical beaches, surfing legendary breaks, camping in beachfront and forest settings, kayaking along Na Pali-style coastlines, stargazing at high-altitude sites, and exploring ancient Hawaiian heiau (temples) and petroglyph fields.
Best Time to Visit
Hawaii parks are a year-round destination with consistently warm temperatures (75-85°F). The dry season (April–October) offers the best beach and hiking conditions. The wet season (November–March) brings bigger surf on north shores, whale watching (humpbacks arrive December–April), and lusher waterfalls, though trail conditions can be muddy. Windward (east) sides of each island receive significantly more rain than leeward (west). High altitude parks like Haleakalā can be cold (below 40°F) — bring layers regardless of season.
Visitor Tips
Most Hawaii state parks are free to enter, though some popular sites require advance reservations and parking fees. Diamond Head and Hanauma Bay require mandatory advance reservations. Camping permits must be obtained through the DLNR website in advance. Respect Hawaiian cultural sites — never remove rocks, sand, or artifacts. Many trails close after heavy rain for safety. Reef-safe sunscreen is required by law in Hawaii. Always check current conditions before hiking, as flash floods are a real danger in valley trails.
Explore More Hawaii State Parks
Wailoa River State Park is one of many outstanding state parks in Hawaii. Discover more parks in our Best State Parks in Hawaii guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Wailoa River SP — Hilo’s urban waterfront park. The park’s river, estuary, and ponds support Hawaiian stilts, golden plovers, and mullet. A tsunami memorial honors victims of the 1946 and 1960 tsunamis that devastated Hilo — the 1960 tsunami killed 61 people and destroyed the entire bayfront.
Nearby Attractions
Hilo — surrounding. Hilo Farmers Market — 0.5 miles. Liliuokalani Gardens — adjacent (largest Japanese garden outside Japan).
Nearby state parks: If you have extra time, Wailuku River State Park is a short drive away, and Akaka Falls State Park is a short drive away.
🐾 Dogs & Pets at Wailoa River State Park
- Pets allowed? statewide rule
- Pets are heavily restricted in Hawaii state parks: they are not permitted in pavilions, swimming areas, campgrounds, lodges, on beaches or wherever posted, and only limited areas allow them.
- Leash rule statewide rule
- Where permitted, pets must be crated, caged, on a 6-foot or shorter leash, or otherwise under physical restrictive control at all times
- Beaches & swim areas statewide rule
- Pets are not permitted on beaches or in swimming areas statewide
- Cabins & lodging statewide rule
- Pets are not permitted in lodges or campgrounds, so overnight accommodations are effectively pet-free
- Statewide exceptions statewide rule
- Rules vary by park and posting; effectively day-use only in the limited unposted areas where pets are tolerated
Are dogs allowed at Wailoa River State Park?
Pets are heavily restricted in Hawaii state parks: they are not permitted in pavilions, swimming areas, campgrounds, lodges, on beaches or wherever posted, and only limited areas allow them. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via dlnr.hawaii.gov. More: Hawaii state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Wailoa River State Park
From our editorial guides, matched to this park’s activities:
