AI-generatedMammoth Lakes, California at a glance
- Best time
- Jun – Oct
- Warmest month
- Jul · 25°
- Sunshine a year
- 2,920 h
- Rain a year
- 408 mm
- Climate
- Continental
- Time zone
- UTC−8 / UTC−7
- Elevation
- 2,402 m
Climate in Mammoth Lakes, California
Mammoth Lakes, California has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 25 °C, while February is the coolest at 1 °C. With around 2,920 hours of sunshine a year, Mammoth Lakes, California is sunny; June is the sunniest month with 10.5 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: June – October
Best for skiing: January – April
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 4°
- Midday, 13:00: about 13°
- Afternoon, 16:00: about 13°
- Evening, 20:00: about 8°
- Night, 23:00: about 5°
07:0318:20
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:47–07:38 · evening 17:45–18:36
- Blue hour
- Morning 06:36–06:47 · evening 18:36–18:47
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Mammoth Lakes, California in October?
In October, Mammoth Lakes, California is cool: daytime highs average 14 °C, and nights cool down to about 1 °C. The sun shines for around 8 hours a day. Rain is rare: about 3 days bring 20 mm in total. All in all, October is an excellent month for a holiday in Mammoth Lakes, California.
More details for October
- Daylight
- 11 h 17 min07:03 – 18:20
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 26 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC−7America/Los_Angeles
How the score comes together
- Temperatureweight 50 %79 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in October
- Sunscreen
- A jumper for the evenings
Sunshine hours in Mammoth Lakes, California
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.5 of 11.3 hours of daylight in Mammoth Lakes, California, 66 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Mammoth Lakes, California
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 55 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Mammoth Lakes, California: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Mammoth Lakes, California has about 3 rainy days with 20 mm of rain in total.
Wind and clouds in Mammoth Lakes, California
How breezy and how cloudy Mammoth Lakes, California is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Mammoth Lakes, California typically peaks at 10 km/h during the day: Beaufort 2, light air.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 26 % of the sky over Mammoth Lakes, California: mostly sunny, with about 7.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow in Mammoth Lakes, California
When Mammoth Lakes, California is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Mammoth Lakes, California has about 1 days with at least 1 cm of fresh snow, 7 cm in total. The chance of seeing snow during a week's stay is 18 out of 100: hardly any. On the slopes at about 3,000 m, the ski season usually runs Jan – Apr.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Mammoth Lakes, California
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 1°. The room should be heated.
The coolest nights are in January (−11°), the warmest in July (10°). Nights fall below 8 °C on average from September to June, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 32 | 1° | −11° | 5.5 h | 7 | 68 |
| FebruaryFeb | 34 | 1° | −11° | 6.3 h | 7 | 66 |
| MarchMar | 40 | 3° | −8° | 7.6 h | 7 | 47 |
| AprilApr | 48 | 7° | −5° | 8.5 h | 6 | 29 |
| MayMay | 82 | 13° | 0° | 9.5 h | 6 | 26 |
| JuneJun | 100 | 21° | 6° | 10.5 h | 4 | 16 |
| JulyJul | 99 | 25° | 10° | 10.4 h | 4 | 16 |
| AugustAug | 100 | 24° | 9° | 10.0 h | 3 | 13 |
| SeptemberSep | 100 | 20° | 7° | 8.9 h | 3 | 10 |
| OctoberOct | 85 | 14° | 1° | 7.5 h | 3 | 20 |
| NovemberNov | 42 | 7° | −5° | 6.0 h | 5 | 33 |
| DecemberDec | 31 | 1° | −10° | 5.2 h | 7 | 64 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
37.65° N, 118.97° W · 2,402 m · America/Los_Angeles
Best time to visit Mammoth Lakes, California
The best time to visit Mammoth Lakes, California is from June to October. Hiking and mountain trips are best from May to October, when the trails are largely free of snow. The wettest month is January with 68 mm of precipitation.
Mammoth Lakes, California through the seasons
How the weather changes over the seasons, with averages for each.
Mammoth Lakes, California in spring
Mar – May
Fair
- 3–13 °C by day
- 9 h of sun a day
- 18 rainy days in all
Mammoth Lakes, California in summer
Jun – Aug
Excellent
- 21–25 °C by day
- 10 h of sun a day
- 11 rainy days in all
Mammoth Lakes, California in autumn
Sep – Nov
Good
- 7–20 °C by day
- 8 h of sun a day
- 10 rainy days in all
Mammoth Lakes, California in winter
Dec – Feb
Poor
- 1 °C by day
- 6 h of sun a day
- 21 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Mammoth Lakes, California for you.
Your best months: June, September
Based on the climate averages; tap a month to see its details.
Compare two months in Mammoth Lakes, California
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Mammoth Lakes, California: score 100 against 85. In June, days are 7 °C warmer than in October. June has one more rainy day. The sun shines 3 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 85 | 100better |
| Day high | 14° | 21° |
| Night low | 1° | 6° |
| Sunshine | 7.5 h | 10.5 hbetter |
| Rainy days | 3better | 4 |
| Rainfall | 20 mm | 16 mm |
Based on the climate averages 1996–2025.
Which month for what?
Hiking & mountain trips
May – Oct
13–27 °C in the village, little snow
Snow
Nov – Apr
Snow on 2 or more days
Best for skiing
Jan – Apr
Estimated snow conditions on slopes at about 3,000 m, from snowfall, temperature and sunshine. A climate estimate, not a snow report.
Mammoth Lakes, California month by month
The typical weather for every month at a glance.
32January1° · 6 h
In January, Mammoth Lakes, California is freezing cold: daytime highs average 1 °C, and nights often drop below freezing (−11 °C). Expect around 6 hours of sunshine a day. Precipitation, often as snow, falls on about 7 days, totalling 68 mm. Snow falls on about 6 days. All in all, January is not an ideal month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in January34February1° · 6 h
In February, Mammoth Lakes, California is freezing cold: daytime highs average 1 °C, and nights often drop below freezing (−11 °C). Expect around 6 hours of sunshine a day. Precipitation, often as snow, falls on about 7 days, totalling 66 mm. Snow falls on about 7 days. All in all, February is not an ideal month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in February40March3° · 8 h
In March, Mammoth Lakes, California is cold: daytime highs average 3 °C, and nights often drop below freezing (−8 °C). The sun shines for around 8 hours a day. Precipitation, often as snow, falls on about 7 days, totalling 47 mm. Snow falls on about 6 days. All in all, March is a so-so month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in March48April7° · 9 h
In April, Mammoth Lakes, California is cold: daytime highs average 7 °C, and nights often drop below freezing (−5 °C). The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 29 mm. Snow falls on about 4 days. All in all, April is a so-so month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in April82May13° · 10 h
In May, Mammoth Lakes, California is cool: daytime highs average 13 °C, and nights often drop below freezing (0 °C). With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 26 mm. Snow falls on about 2 days. All in all, May is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in May100June21° · 11 h
In June, Mammoth Lakes, California is mild: daytime highs average 21 °C, and nights cool down to about 6 °C. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 16 mm in total. All in all, June is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in June99July25° · 10 h
In July, Mammoth Lakes, California is warm: daytime highs average 25 °C, and nights cool down to about 10 °C. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 16 mm in total. All in all, July is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in July100August24° · 10 h
In August, Mammoth Lakes, California is warm: daytime highs average 24 °C, and nights cool down to about 9 °C. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 13 mm in total. All in all, August is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in August100September20° · 9 h
In September, Mammoth Lakes, California is mild: daytime highs average 20 °C, and nights cool down to about 7 °C. The sun shines for around 9 hours a day. Rain is rare: about 3 days bring 10 mm in total. All in all, September is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in September85October14° · 8 h
In October, Mammoth Lakes, California is cool: daytime highs average 14 °C, and nights cool down to about 1 °C. The sun shines for around 8 hours a day. Rain is rare: about 3 days bring 20 mm in total. All in all, October is an excellent month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in October42November7° · 6 h
In November, Mammoth Lakes, California is cold: daytime highs average 7 °C, and nights often drop below freezing (−5 °C). Expect around 6 hours of sunshine a day. Rain is rare: about 5 days bring 33 mm in total. Snow falls on about 4 days. All in all, November is a so-so month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in November31December1° · 5 h
In December, Mammoth Lakes, California is freezing cold: daytime highs average 1 °C, and nights often drop below freezing (−10 °C). Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 7 days, totalling 64 mm. Snow falls on about 6 days. All in all, December is not an ideal month for a holiday in Mammoth Lakes, California.
Mammoth Lakes, California in DecemberMammoth Lakes, California compared
Put Mammoth Lakes, California side by side with another destination.
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Mammoth Lakes vs. Mariposa (Yosemite)
In October Mariposa (Yosemite) has the better holiday weather (score 97 vs. 85). During the day Mariposa (Yosemite) is 9 °C warmer than Mammoth Lakes.
| in October | Mammoth Lakes | Mariposa (Yosemite) |
|---|---|---|
| Holiday score | 85 | 97 |
| Daytime high | 14° | 23° |
| Sunshine | 8 h | 8 h |
| Rainy days | 3 | 3 |
| Best time | Jun – Oct | Apr – May, Oct |
Through the year
USA in October: the best places
In October, Mammoth Lakes, California ranks 18 among the 31 nearest destinations in this country.
- Las Vegas26°99
- 2Mariposa (Yosemite)23°98
- 3Los Angeles26°19°98
- 4Long Beach25°19°98
- 5Sedona23°97
- 6Sacramento25°96
- 7San Jose23°96
- 8Page (Lake Powell)21°96
- 18Mammoth LakesThis page14°85
Planning a trip to Mammoth Lakes, California
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Mammoth Lakes, California in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Mammoth Lakes, California has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (ski score 75).
- 93
Easter holidays
Mar – Apr
Excellent · ski conditions
- 6 °C by day
- 8.2 h of sun a day
- 6 rainy days a month
Good for: Skiing
- 86
May half-term
May – Jun
Excellent
- 15 °C by day
- 9.7 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 100
Summer holidays
Jul – Aug
ExcellentBest holidays
- 24 °C by day
- 10.1 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 85
October half-term
Oct
Excellent
- 14 °C by day
- 7.5 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 75
Christmas holidays
Dec – Jan
Good · ski conditions
- 1 °C by day
- 5.4 h of sun a day
- 7 rainy days a month
Keep in mind: Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 10 h 40 min
- Distance
- 8,450 km
- Time zone
- UTC−7
- Jet lag
- About 5 days (8 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Mammoth Lakes, California
When is the best time to visit Mammoth Lakes, California?
The best time to visit Mammoth Lakes, California is from June to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Mammoth Lakes, California?
July is the warmest month, with average highs of 25 °C and nights around 10 °C. February is the coolest month at 1 °C.
When does it rain most in Mammoth Lakes, California?
The wettest month is January with 68 mm of precipitation. The driest month is September with 10 mm.
How many hours of sunshine does Mammoth Lakes, California get?
Mammoth Lakes, California gets around 2,920 hours of sunshine a year. The sunniest month is June with 10.5 hours a day; in December there are 5.2 hours a day.
What time zone is Mammoth Lakes, California in?
Mammoth Lakes, California uses the time zone America/Los_Angeles: UTC−8 in January and UTC−7 in July.
How long is the flight from London to Mammoth Lakes, California?
A nonstop flight from London to Mammoth Lakes, California takes about 10 h 40 min, for a straight-line distance of about 8,450 km.
Which school holidays are best for Mammoth Lakes, California?
Mammoth Lakes, California has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (ski score 75). Holiday ratings (0–100): Easter holidays 93 (Ski), May half-term 86, Summer holidays 100, October half-term 85, Christmas holidays 75 (Ski).
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