Mammoth Lakes weather in January 2027

Q: How hot is it in Mammoth Lakes in January?

Daytime temperatures usually reach 20°C in Mammoth Lakes in January, falling to 8°C at night.

Q: How sunny is it in Mammoth Lakes in January?

There are normally 7 hours of bright sunshine each day in Mammoth Lakes in January - that's 70% of daylight hours.

Q: Does it rain in Mammoth Lakes in January?

There are usually 5 days with some rain in Mammoth Lakes in January and the average monthly rainfall is 80mm.

Expect daytime maximum temperatures of 4°C in Mammoth Lakes, California in January based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 125 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
-9
-9°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
125
125 mm of monthly rainfall
3
3 (Moderate) UV index

More about Mammoth Lakes

Mammoth Lakes by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for California

On the Beach: Free perks on 2026 holidays

Sale

Book 2026 holidays & get free perks with On the Beach
Perks vary based on hotel star rating & promotional T&Cs
Free lounge access, gadget cover, weather protection & more

Go to On the Beach deal >>

Expires at 23:59 on Monday 31st Aug 2026 · View all On the Beach offers

The January weather guide for California (Mammoth Lakes) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about California

How hot is it in Mammoth Lakes in January?

Daytime temperatures usually reach 20°C in Mammoth Lakes in January, falling to 8°C at night.

How sunny is it in Mammoth Lakes in January?

There are normally 7 hours of bright sunshine each day in Mammoth Lakes in January - that's 70% of daylight hours.

Does it rain in Mammoth Lakes in January?

There are usually 5 days with some rain in Mammoth Lakes in January and the average monthly rainfall is 80mm.

Mammoth Lakes January sunrise & sunset times

Browse the sunrise and sunset times for Mammoth Lakes in January 2027. Select a month to view Mammoth Lakes sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec