Radium Hot Springs, Yuma
Hot Springs in Arizona
Near Wellton, AZ in Arizona
What to Pack for Radium Hot Springs, Yuma
A well-packed bag handles most of what this area can throw at you.
What you bring to Radium Hot Springs matters. This list reflects the actual conditions you'll encounter.
Essential
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Water (minimum 2L) — Water sources marked on maps may be seasonal or dry; carrying enough to complete your route prevents a dangerous shortfall.
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Navigation (map/GPS/compass) — Getting lost is the leading cause of backcountry search-and-rescue calls; reliable navigation prevents the situation entirely.
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Sun protection (sunglasses, sunscreen) — Prolonged sun exposure causes headaches, fatigue, and heat exhaustion that can cut a trip short or create a medical emergency.
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First aid kit — Remote locations mean longer response times for help; a first aid kit bridges the gap between injury and professional care.
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Extra food — High-energy snacks weigh little but provide crucial fuel if you need to bushwhack out or wait for conditions to improve.
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Headlamp with extra batteries — Hands-free light is essential for navigating uneven terrain, setting up camp, or signaling for help at night.
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Fire starter — Waterproof matches or a ferro rod weigh almost nothing and can be the difference between a cold night and a survivable one.
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Emergency shelter (space blanket) — Wind and rain strip heat faster than most people realize; a compact emergency shelter blocks both.
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Knife or multi-tool — A multi-tool handles problems you can't predict: jammed zippers, tangled line, first-aid tape cutting, or gear fixes on the trail.
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Extra clothing layer — A lightweight fleece or puffy stuffs small but provides critical insulation if temperatures drop unexpectedly.
Wildlife Gear
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Hiking buddy (avoid solo) — A companion can help with first aid, signaling, and decision-making if a wildlife encounter turns serious.
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Noise maker — Group noise is especially important in dense brush or near berry patches where bears may be feeding and less alert.
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Gaiters — Thick gaiters deflect fangs before they reach skin, buying critical time in areas with rattlesnakes or copperheads.
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First-aid snakebite kit — Knowing how to immobilize a limb, mark swelling progression, and avoid harmful folk remedies can improve outcomes.
Climate Gear
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Extra water (1L/hr) — Heat exhaustion progresses to heat stroke rapidly once fluid reserves drop; consistent intake keeps your cooling system functional.
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Electrolytes — Drinking large amounts of plain water without electrolytes can actually dilute blood sodium to dangerous levels during intense exertion.
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Cooling towel — Evaporative cooling towels stay cold for hours when wet and can lower perceived temperature by several degrees.
Terrain Gear
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Wide-brim hat — At high elevation where UV is 10-12% stronger per 1,000 feet of gain, a hat provides constant passive protection.
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Sunscreen SPF50+ — Sunburn isn't just discomfort — severe burns cause fluid loss, fatigue, and impaired thermoregulation that compound in remote settings.
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Extra water (desert) — In arid heat, your body loses 1-2 liters per hour during exertion; running out of water in the desert is life-threatening.
Seasonal Gear
- Spring: Camera, Wildflower field guide
- Fall: Camera, Binoculars (foliage viewing)
Activities & Best Time to Visit Radium Hot Springs, Yuma
The Desert terrain here lends itself to a range of outdoor activities throughout the year.
From photography, picnicking, relaxation, the outdoor activities at Radium Hot Springs take advantage of the local terrain and climate.
With a photography score of 55/100, Radium Hot Springs offers Good dark sky (Bortle 3) and 3 excellent meteor showers worth capturing.
Activities
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photography — Golden hour and dramatic weather can transform ordinary scenes into striking images.
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picnicking — Picnicking turns a scenic overlook or shady grove into a memorable gathering spot.
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relaxation — Natural settings offer calm away from daily routines.
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soaking — Warm mineral waters provide a soothing outdoor experience.
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walking — Walking lets you slow down and notice details — wildflowers, birdsong, shifting light through trees.
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wildlife_viewing — Early mornings and dusk offer the best chances to quietly spot native wildlife.
Best months: Oct, Nov, Dec, Jan, Feb, Mar, Apr
Terrain: Desert — Cacti, shrubs, and drought-tolerant plants dominate arid landscapes.
Wildlife Safety at Radium Hot Springs, Yuma
A few species in this area warrant awareness — here's what to keep in mind.
Understanding the local hazards at Radium Hot Springs starts with knowing what's here: venomous snakes.
- Mountain lions
- Venomous snakes
- Flood zone
- Remote (125mi from city)
- Good dark sky (Bortle 3)
- 3 excellent meteor showers
- Fall foliage
- Spring wildflowers
Venomous Snakes
Watch your step — are present in the Desert habitat around Radium Hot Springs.
- Watch where you step and place hands
- Stay on trails
- Wear boots and long pants in snake country
- Do not reach under rocks or logs
- If bitten: stay calm, immobilize limb, seek medical help immediately
- Do NOT: cut wound, suck venom, apply tourniquet, ice, or alcohol
Nature & Wildlife at Radium Hot Springs, Yuma
The Desert terrain here supports a rich ecosystem worth noticing as you explore.
Walk quietly and you may spot Bighorn Sheep and Black-tailed Jackrabbit among the 0 tree species and 0 wildflowers that grow here.
Shrubs (5)
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Brittlebush — A rounded desert shrub with silvery fuzzy leaves and bright yellow daisy-like flowers. -
Creosote Bush — An evergreen desert shrub with small resinous leaves divided into paired leaflets. -
kofa mountain barberry — A spiny shrub with leathery leaves and bright yellow flowers.
Other Plants (5)
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saguaro
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Teddybear Cholla
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ocotillo
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Beavertail Pricklypear
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simple desert agave
Mammals (5)
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Bighorn Sheep — Rams carry massive curled horns. -
Black-tailed Jackrabbit — Brown-gray coat and powerful hind legs. -
Donkey — Coat typically gray or brown with lighter muzzle. -
Coyote — Narrow muzzle and upright ears. -
Mule Deer — Coat ranges from tawny brown in summer to gray-brown in winter.
Birds (30)
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Rock Pigeon — White or mottled urban color morphs -
European Starling — Spotted winter plumage with pale speckles -
Dark-eyed Junco — Oregon form with dark hood and brown back -
Gambel's Quail — Black face patch -
White-crowned Sparrow — Juvenile with brown crown stripes
Reptiles (14)
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Common Side-blotched Lizard — Distinct dark blotch behind the front legs on each side. -
Common Chuckwalla — Tail thick and body robust. -
Zebra-tailed Lizard — Body is pale gray or tan with subtle patterning. -
Southwestern Speckled Rattlesnake — Camouflages closely with rocky terrain. -
Desert Collared Lizard — Males often show turquoise and green tones during breeding season.
Amphibians (1)
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Red-spotted Toad
Insects (9)
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Seven-spotted Lady Beetle -
Master Blister Beetle -
Creosote Cone Gall Midge
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Queen -
Variegated Meadowhawk
Fungi (1)
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Protoparmeliopsis kofae
Other Wildlife (8)
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Desert Hairy Scorpion
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Desert Blonde Tarantula
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Camptocosa parallela
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Stripe-tailed Scorpion
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Common Desert Centipede
Nature Bingo at Radium Hot Springs, Yuma
Can you spot them all? Check off each species as you find it on your visit.
Wildlife Challenge
Botany Challenge
Radium Hot Springs, Yuma Climate & Sun
Use this climate breakdown to plan around the weather.
Climate data for Radium Hot Springs shows Arid patterns, averaging 72.9°F year-round.
Climate type: Arid
Annual avg temp: 72.9°F
Annual precipitation: 3.7 in
With an average annual temperature of 72.9°F and 3.7 inches of precipitation, Radium Hot Springs has hot, arid conditions. Summer highs average around 93°F, while winter lows drop to 55°F.
Best months to visit: Jan, Feb, Mar, Apr, Nov, Dec. Consider avoiding: Jul, Aug.
| Month | Avg Temp | Precip |
|---|---|---|
| Jan | 55°F | 0.5 in |
| Feb | 58°F | 0.4 in |
| Mar | 64°F | 0.4 in |
| Apr | 70°F | 0.1 in |
| May | 77°F | 0.1 in |
| Jun | 86°F | 0.0 in |
| Jul | 93°F | 0.4 in |
| Aug | 93°F | 0.4 in |
| Sep | 87°F | 0.4 in |
| Oct | 75°F | 0.3 in |
| Nov | 63°F | 0.3 in |
| Dec | 54°F | 0.4 in |
Daylight & Sun Times
Daylight ranges from 10 hours in winter to 14.3 hours in summer — a difference of 4.3 hours.
Summer: 4:27 AM – 6:45 PM
Winter: 6:30 AM – 4:31 PM
Radium Hot Springs, Yuma Trip Planning & Access
With the lay of the land covered, here are the trip planning details.
The closest major city is Phoenix at 125 miles, making this a short road trip destination.
Visitor Friendliness
Visitor friendliness: families (excellent), dogs (likely_allowed), elderly (highly_suitable).
- Dogs: likely_allowed — No restrictions found
- Families: excellent
- Elderly: highly_suitable
- Strollers: excellent (100/100)
- Beginners: Good starting point (Moderate difficulty (+5))
- Accessibility: Generally accessible to most visitors (90/100)
Places Near Radium Hot Springs, Yuma
Nearby trails, campgrounds, and attractions expand what you can do on this trip.
5 outdoor locations are close enough to Radium Hot Springs to combine into a single trip.
Nearby Campgrounds
Stargazing & Night Sky at Radium Hot Springs, Yuma
Don't pack up when the sun goes down — the night sky here has plenty to offer.
The night sky here rates Bortle class 3, meaning Rural sky conditions for spotting constellations and celestial events.
Constellations
Look for Ursa Minor, Cepheus — all visible from this location depending on the season.
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Ursa Minor — This compact constellation contains Polaris at the end of its handle, a reliable guide to true north. -
Cepheus — Named for a mythological king, this constellation sits beside Cassiopeia and is circumpolar in northern latitudes.
Meteor Showers
For meteor viewing, the Geminids (December 13-14) offers the best show at this location.
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Geminids — peaks December 13-14 (excellent)Cold December air often means clear skies—look overhead after midnight for bright, slow-moving meteors.
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Quadrantids — peaks January 3-4 (excellent)Bundle up—January nights are frigid, but dark skies can produce bright fireballs.
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Perseids — peaks August 11-13 (excellent)Peak activity typically builds after midnight when Perseus climbs higher.
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Eta Aquariids — peaks May 5-6 (good)Southern U.S. observers often get better rates due to the radiant's position.
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Delta Aquariids — peaks July 28-29 (fair)This steady shower rewards patient observers in dark, moonless conditions.
Planets
Planets visible to the naked eye from this location:
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Venus — The brightest planet, often called the Morning or Evening Star -
Jupiter — The largest planet, bright and steady in the night sky -
Saturn — Famous for its rings, visible as a golden steady light -
Mars — The Red Planet, recognizable by its reddish-orange hue
Equipment Guide
- Naked eye: Venus, Jupiter, Saturn, Mars, Mercury (with care)
- Binoculars: Jupiter moons, Uranus, Saturn rings (barely)
- Small telescope: Saturn rings, Jupiter bands, Mars surface features, Neptune
Viewing Tips
- Check planets rise/set times for your specific date
- Planets appear along the ecliptic (zodiac path)
- Planets don't twinkle like stars - steady light
- Venus and Jupiter are unmistakable - brightest objects after Moon
- Use a stargazing app to confirm planet positions
- Best viewing: when planet is highest in sky (transit)
Best Viewing Months
- Evening: Oct, Nov, Dec, Jan, Feb
- Morning: Jul, Aug, Sep
Seasonal Highlights at Radium Hot Springs, Yuma
Different seasons reveal different sides of Radium Hot Springs.
The landscape at Radium Hot Springs transforms through the year, with 3 notable seasonal events.
Spring Wildflowers
Peak bloom: March - April
Check local park websites for bloom reports
Fall Foliage
Peak color: October 25 – November 15
Best trees for color: Maple, Oak, Aspen
Higher elevations peak 1-2 weeks earlier
Bird Migration
Spring peak: March - April
Fall peak: October - November
Best spots: Wetlands, coastlines, mountain ridges
Radium Hot Springs, Yuma Geology & Natural History
Beyond the trails and wildlife, Radium Hot Springs sits within a landscape shaped by millions of years of geological processes. Here's what researchers and surveys have documented about this area.
Bedrock Geology
- Rock Type
- Quaternary surficial deposits, undivided
- Lithology
- Major:{sand,silt,clay}
- Age
- Cenozoic
Fossils
- Fossil Occurrences
- 2
- Unique Species
- 2
- Oldest
- 29.5 million years ago
Mineral Deposits
- Deposit Sites
- 67
- Richness
- Exceptional
- Minerals Found
- Lead, Silver, Gold, Uranium, Barium-Barite, Copper, Sand and Gravel, Construction
Endangered Species
- Species at Risk
- 1478
- ESA Endangered
- 29
- ESA Threatened
- 16
- Conservation Score
- 100/100
Temperature Records
- Record High
- 126°F (1995-07-28)
- Record Low
- 13°F (2007-01-15)
Wildfire History
This area has a moderate wildfire risk. Be aware of fire restrictions during dry months and practice safe fire practices.
- Recorded Fires
- 2
- Largest Fire
- Antelope Assist (920.7 acres)
- Most Recent
- 2016
- Fire Risk
- Moderate
Watershed
- Watershed
- Town of Tyson-Mohawk Canal
- Water Quality (Good)
- 0%
- Impaired
- 0%
Reported Phenomena
- UFO Sightings
- 5 (NUFORC)
- Eeriness Score
- 10/100
Radium Hot Springs, Yuma Safety & Conditions
For up-to-the-minute safety information, use these official resources.
Live conditions for Radium Hot Springs — bookmark these for your trip.
Coordinates: 32.741, -114.068