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Mammoth Mountain, United States · Alpine mountain climate

Mammoth Mountain in October: go or not?

Good time. Mammoth Mountain in October gets 7.4/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 37.63°N · 118.97°W
⚡ This month's verdict
Go for it
Mammoth Mountain · October
7.4
1–15°
Temperature
9%
Rain
8h
Sun
❄️ Alpine climate☀️ High-altitude UV🌦️ Changeable weather
Photo : Miguel Ángel Sanz via Unsplash
The month in detail

What to expect in October

Off-season for skiing Mammoth Mountain — lifts are closed. Consider hiking, mountain biking or summer activities at altitude. Rain risk remains low (9.0% of days), leaving good room for outdoor activities.

October ranks 5 out of 12 months in Mammoth Mountain. Compared to September: −5°C daytime, −0.9h of sun per day.

This month's conditions

What it's like in October

UV index
6 · moderate
protect during midday hours
Feels like
dry air
-6°
Daylight
11.0h of daylight
Air quality
good
AQI 33
Compare

Is October the right month?

The best month in Mammoth Mountain is July (9.0/10), 1.6 pt higher than October.

See July →See all 12 months →
Context

Our verdict

Mammoth Mountain is the reference ski resort of the Californian Sierra Nevada: 3370m summit, season among the longest in North America (sometimes November to July in good years). July is my favourite month (9.4/10): 10-25°C, 9% rain, clear sky for hikes towards Devils Postpile , Rainbow Falls, Convict Lake .

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🏨
Stay
Hotels & rentals · Mammoth Mountain
Expedia →
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Activities
Tours, tickets, experiences
See ↓
✈️
Flights
Multi-airline comparator
Kiwi →

🎟️ Activities & tours · Mammoth Mountain

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a mountain stay.

Country · United States

🗣️LanguageEnglish
💶CurrencyUS Dollar ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeAlpine mountain climate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 25°C
❄️Coolest monthJanuary · 1°C
🌧️Rainiest month ⓘMarch · 36%

🏔️ Mountain stay

⛰️Village altitude2424 m
🎿Ski area2424 → 3370 m
⛷️Ski seasonDec → May
🥾Hiking seasonJun → Sep
🧗High mountains ⓘGuide recommended
Explore

Other destinations in October

If October doesn't convince you for this destination, compare with others.

Similar climate
Lake TahoeUnited StatesSteamboat SpringsUnited StatesPark CityUnited StatesSun ValleyUnited StatesPeloponneseGreece
Nearby
MontereyUnited States283 kmSan FranciscoUSA304 kmNapa ValleyUnited States304 kmSanta BarbaraUnited States363 km
Other top picks
DurbanSouth Africa7.7LimaPeru7.7El HierroSpain7.9KigaliRwanda7.9Gold CoastAustralia8.0
← SeptemberNovember →
🗺️ See all 754 destinations on the map
Location

Where is Mammoth Mountain ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
United States
Alpine mountain climate climate with a 9.0 → 1.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
37.63°N · 118.97°W
Questions

Frequently asked questions

When is the best time to visit Mammoth Mountain?
It depends on the activity. For skiing: March (ski score 8.5/10). For hiking/summer: June (9.2/10, 21.0°C).
Can you ski in Mammoth Mountain in winter?
Yes, it's peak ski season. Average ski score December–February: 8.2/10. Cold temperatures (1°C max in January) and frequent snowfall.
Is it warm in Mammoth Mountain in summer?
In June, temperatures average 21.0°C. Best period for hiking and outdoor activities.
What is the wettest month in Mammoth Mountain?
November is the wettest month with November has the lowest climate score of the year.
Do you need sun protection in Mammoth Mountain in October?
The average UV index reaches 6 in October in Mammoth Mountain (moderate), with about 11.0h of daylight. Protect during midday hours.