Napa weather in January 2025

Expect 55°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Napa in January. Check more long-term weather averages for Napa in January before you book your next holiday to California in 2025/2026.

  • 55°F maximum daytime temperature in January in Napa55
    55°F max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in January in Napa10
    10 days with some rainfall
  • 37°F minimum night-time temperature in January in Napa37
    37°F min night temperature
  • 10 hours of daylight per day in January in Napa10
    10 hours of daylight per day
  • No heat & humidity in January in Napa0
    No heat & humidity
  • 6.2 inches monthly rainfall in January in Napa6.2
    6.2 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Napa2
    2 (Low) UV index

More about Napa

Napa by month

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

Recommended for California

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost

TUITUI deal finder

The January weather guide for California (Napa) 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)  |  Imperial (°F)

Back to top

More about California

How warm is it in Napa in January?

Daytime temperatures usually reach 55°F in Napa in January, falling to 37°F at night.

How sunny is it in Napa in January?

There are normally 6 hours of bright sunshine each day in Napa in January - that's 57% of daylight hours.

Does it rain in Napa in January?

There are usually 10 days with some rain in Napa in January and the average monthly rainfall is 6.2 inches.

Napa January sunrise & sunset times

Browse the sunrise and sunset times for Napa in January 2025. Select a month to view Napa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:26 17:00
Thursday, 16th January 2025 07:24 17:14
Friday, 31st January 2025 07:15 17:31

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^