Flooding is the defining safety concern at Redwood National and State Parks, with county records showing 11 flood events and 13 heavy rain incidents logged in recent data. The combination of dense forest canopy, steep terrain, and saturated coastal soils means water levels in creeks and low-lying campsites can rise faster than forecasts suggest. Humboldt County's violent crime rate of 526.5 per 100,000 also sits well above the national average, making site selection matter beyond just weather.
Before your trip, download offline trail maps since cell service drops out across much of the park, and check the NWS forecast for Humboldt County specifically — not just a general app. Camp on elevated ground rather than creek-adjacent sites, and keep rain gear and waterproof bags for electronics and sleeping bags accessible in your vehicle rather than buried in your pack. If staying in a nearby gateway town, choose well-lit, established RV parks over roadside pull-offs given the local crime figures.
Top recorded hazards in Humboldt County
County dataFrom NOAA Storm Events (2024). Counts of recorded incidents — not all occurred at this park.
- Heavy Rain 13
- Flood 11
- Thunderstorm Wind 3
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About Redwood National and State Parks
Renowned for the world’s tallest trees, Redwood’s landscapes span from open prairies and oak woodlands to pristine rivers and untamed coastline. This ancient home has supported people for thousands of years. The National Park Service and California State Parks now work to safeguard and rejuvenate these lands for everyone’s enjoyment, learning, and inspiration.
Weather
Visitors should be prepared for cooler and damp weather. Dress in layers and expect to get wet. Year-round temperatures along California's redwood coast: mid-40s°F (7°C) to mid-60s°F (18°C). Summer can be foggy, with highs occasionally reaching low 70s°F (20°C). Winters are cooler with considerable rain. October through April averages 60-80 inches of rain over the region.