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Photo by Jay Mantri on Unsplash
EasySand

100 F

Waimanalo, Hawaii · Honolulu County

100 F is a easy hiking trail near Waimanalo in Honolulu County, Hawaii.. The surface is sand. Trail data is sourced from OpenStreetMap.

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21.33677, -157.69713
Open in OpenStreetMap
5-Day Forecast

Weather at 100 F

Live forecast for the trailhead. Use it to pack and time your hike.

Avg High79°F
Avg Low71°F
Peak Rain Chance41%
Humidity81%
UV (avg)9
Air Quality33 · Good
Today
🌦
Drizzle
80°/71°
💧 14%🌬 15mph
5:48 AM7:08 PM
Sun
🌦
Drizzle
79°/70°
💧 5%🌬 11mph
5:48 AM7:08 PM
Mon
🌧
Heavy Drizzle
78°/69°
💧 29%🌬 16mph
5:48 AM7:09 PM
Tue
🌧
Light Rain
80°/72°
💧 41%🌬 17mph
5:48 AM7:09 PM
Wed
🌧
Heavy Drizzle
79°/72°
💧 18%🌬 15mph
5:48 AM7:10 PM

Forecast data © Open-Meteo. Refreshed every 6 hours. Always check the most recent forecast before heading out.

About 100 F

100 F is a easy hiking trail near Waimanalo in Honolulu County, Hawaii.. The surface is sand. Trail data is sourced from OpenStreetMap.

What “Easy” Means

Gentle terrain, well-marked. Suitable for all ages and fitness levels.

Difficulty is derived from OpenStreetMap’s Swiss Alpine Club (SAC) hiking scale, trail visibility, surface, distance, and elevation gain. Always verify current conditions before heading out.

What to Pack & Wear

Personalised to this trail’s length, elevation, difficulty, and the live forecast.

👔 What to Wear

  • 👕
    Moisture-wicking T-shirt
    Light color, breathable.
  • 🩳
    Lightweight shorts or pants
    Quick-dry preferred — sweat dries fast.
  • 🧢
    Brimmed sun hat
    Better than a cap for back-of-neck protection.
  • 🥾
    Trail runners
    Breathable mesh uppers.
  • Rain jacket / shell
    41% chance of precipitation in the forecast.

🎒 What to Pack

  • 💧
    Water
    Bring at least 1L of water; more in heat.
  • 🍫
    High-energy snacks
    A snack for the trail.
  • 🧴
    Sun protection (UV 9)
    SPF 50+ sunscreen, lip balm w/ SPF, sunglasses, sun hat.
  • 🩹
    First-aid kit
    Blister patches, ibuprofen, tape, antiseptic wipes.
  • 🗺
    Offline map
    Download your route in advance via Gaia, Caltopo, or OSM-based apps.
  • 🛍
    Dry bags for electronics
    Phone, camera, and snacks should stay dry.

Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.

Trail Safety in Hawaii

Trail conditions in Hawaii change with weather, season, and fire activity. Closures, washouts, and rerouting are common. Before heading out:

  • Check with the land manager for current conditions and closures
  • Tell someone your plan and expected return time
  • Know your turn-around limits — conditions can change fast
  • Carry the 10 essentials: water, food, navigation, first aid, light, fire, shelter, knife, sun protection, extra clothes

Frequently Asked Questions

How hard is 100 F?

100 F is rated Easy. Suitable for most hikers including families.

What is the trail surface on 100 F?

The surface is sand. Sand can be slow and tiring — pack extra water and energy snacks.

When is the best time to hike 100 F?

Hawaii has trail conditions that vary by season. Spring and fall usually offer the best mix of temperature and trail conditions. Check the 5-day forecast above for current outlook. Always verify trail status (closures, washouts, fire restrictions) with the local land manager before going.