Mammoth Lakes, California weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: June – October
Best for skiing: January – April
What is the weather like in Mammoth Lakes, California in August?
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.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 99 | 100 | 100 |
| Day | 25° | 24° | 20° |
| Night | 10° | 9° | 7° |
| Sun | 10 h | 10 h | 9 h |
| Rain days | 4 | 3 | 3 |
More details for August
- Daylight
- 13 h 40 min06:11 – 19:51
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 19 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−7America/Los_Angeles
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- 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 August
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Mammoth Lakes, California in August: quick answers
Is Mammoth Lakes, California hot in August?
Warm rather than hot: in August, daytime highs in Mammoth Lakes, California average 24 °C and nights cool to about 9 °C.
Does it rain much in Mammoth Lakes, California in August?
Rain is rare: about 3 days bring 13 mm in total.
Mammoth Lakes, California month by month
The whole year in Mammoth Lakes, CaliforniaAll destinations: USAWhere to go in August
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