Mountain air

Mammoth Lakes, California weather in May

Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

82

Holiday weather in May

Excellent

Best time to visit: June – October

Best for skiing: January – April

What is the weather like in Mammoth Lakes, California in May?

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.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score4882100
Day7°13°21°
Night−5°0°6°
Sun9 h10 h11 h
Rain days664

More details for May

Daylight
14 h 10 min05:47 – 19:57
UV index
11 · extremeclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
13 km/haverage daily peakAll months
Cloud cover
35 %on averageAll months
Hot days
0 days30 °C or more
Snow days
2 days1 cm or more of fresh snowAll months
Time zone
UTC−7America/Los_Angeles

How the score comes together

  • Temperatureweight 50 %70 %
  • Sunshineweight 20 %100 %
  • Few rainy daysweight 30 %89 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Mammoth Lakes, California in May: quick answers

Is Mammoth Lakes, California hot in May?

No. In May, Mammoth Lakes, California is cool: daytime highs average 13 °C and nights drop to about 0 °C.

Does it rain much in Mammoth Lakes, California in May?

Rain falls on about 6 days, adding up to 26 mm.

Mammoth Lakes, California month by month

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