Mammoth Lakes California, USA Travel Guide
Winter (November - April): This period has significant snowfall and cold temperatures. Average high temperatures range from 30°F (-1°C) to 40°F (4°C), with lows often below 20°F (-7°C). Heavy snowfall, averaging 400 inches at Mammoth Mountain Main Lodge, creates prime conditions for snow sports. Humidity generally remains low.
Summer (July - August): These months are warm, dry, and sunny. Average high temperatures reach 70°F (21°C) to 80°F (27°C), with cool nights. Afternoon thunderstorms are possible. Low humidity prevails. This season is ideal for hiking, fishing, and water sports.
High Season (Mid-December to Mid-April for winter, July - August for summer): This season draws ski/snowboard enthusiasts and summer hikers. Accommodation and activities are more expensive. Slopes and restaurants are crowded. Booking well in advance is a good idea. Access to all terrain and trails happens during these times.
Shoulder Season (Spring: May - June; Fall: September - October): Fewer crowds and lower prices are common. Opportunity exists for mixed activities, such as spring skiing and early season hiking. Wildflowers bloom in spring, and stunning fall foliage appears in autumn. Weather is variable; some high-elevation areas might be snow-bound. Early snowstorms can happen in late fall.
7,880 feet (2,400 meters)
Hydrate well, avoid alcohol and heavy exertion on day one. Gradual acclimatization is a good idea. Descend if symptoms worsen.
Headache, nausea, fatigue, dizziness, difficulty sleeping.
Winter & Summer
Road closures possible. Chains or 4WD vehicles may be necessary.
Afternoon storms are possible. Seek shelter if thunder is heard.
Dry Summer & Fall
Check air quality advisories. Local authorities issue alerts.
Potentially affects air quality. Trail or area closures are possible.
Skiing/Snowboarding: December - April, with peak conditions from January to March. Hiking (High Elevation): July - September. Camping: July - September.
Hiking (Lower Elevation/Lakes): June - October. Mountain Biking: Late June - October. Fishing: May - October. Fall Foliage Viewing: Late September - Mid-October.
Post-ski season, pre-summer activities. Deepest accommodation discounts.
Post-fall foliage, pre-ski season. Quiet atmosphere.
Many businesses closed or have limited hours. Weather is unpredictable. Limited activity options.
Mixed-activity days, like late-season hiking combined with early-season snow activities.
For Mammoth Lakes, as part of the United States, standard U.S. Entry requirements apply.
Citizens of certain countries, like most European Union countries, Australia, New Zealand, Japan, South Korea, and the UK, may enter the U.S. For tourism or business for up to 90 days without a visa under the Visa Waiver Program (VWP).
This visa applies to travelers not eligible for the VWP or planning stays longer than 90 days. The application includes completing Form DS-160, paying a fee, and attending an interview at an U.S. Embassy or consulate.
Mammoth Lakes is generally a resort destination, especially during peak seasons. Costs vary significantly based on your travel style and time of year. The currency is the United States Dollar (USD or $). ATMs are widely available, and credit cards are universally accepted. Inform your bank of travel plans. Avoid exchanging large amounts of cash at airports due to unfavorable rates.
| Category | Budget Traveler (USD) | Mid-Range Traveler (USD) |
|---|---|---|
| Accommodation | $50 - $100 (hostel/basic motel/camping) | $150 - $300 (standard hotel/condo) |
| Meals | $30 - $60 (groceries, fast casual) | $70 - $120 (casual restaurants, some finer dining) |
| Daily Total (Est.) | $95 - $235 | $255 - $590 |
Mammoth Lakes is a safe destination, but its high-altitude, mountain environment has unique health and safety considerations.
Hydrate, avoid alcohol/exertion on day one. Electrolyte packets aid hydration. Descend if symptoms worsen.
Use high SPF Sunscreen (30+). Wear Wide-brimmed hats and Sunglasses. High altitude expands UV radiation.
Dry mountain air increases fluid loss. Carry a Reusable water bottle and drink often.
Mammoth Hospital: 85 Sierra Park Road, Mammoth Lakes, CA 93546. Offers emergency services, urgent care, and various medical specialties.
Pharmacies: Vons and Rite Aid have pharmacies in town. For immediate medical, fire, or police emergencies, call 911.
Routine vaccinations, like MMR, DTaP, and Polio, should be current. A Flu shot is worth considering if traveling during flu season.
Tap water in Mammoth Lakes is safe. Backcountry water needs treatment. Consider a Portable water filter.
Mammoth Lakes has a very low crime rate. It is a safe community for visitors. Still, secure valuables, especially in vehicles or at trailheads.
Black bears are present. Store food in bear-resistant containers. Never feed wildlife. Keep campsites clean and secure car doors/windows. Learn about Bear spray usage.
Recreational marijuana is legal in California for adults 21+. Consumption in public places or on federal land (national parks/forests) is illegal. Driving under the influence is illegal.
California is an active seismic zone. Be aware of "drop, cover, and hold on" procedures during earthquakes. Wildfires occur, especially in summer and fall; monitor local news and air quality.
Travel insurance is highly recommended, especially considering the costs of U.S. Healthcare. It is a good idea to secure coverage for medical emergencies, trip interruption or cancellation due to weather or injury, baggage loss, and emergency evacuation, notably if participating in adventure sports.
A travel insurance storefront for adventurous travelers. Visit World Nomads
Insurance designed for digital nomads and remote teams. Visit SafetyWing
Provides medical and travel-related coverage for foreigners visiting the United States. Visit Insubuy
