Naples weather in January 2026

Expect daytime maximum temperatures of 12°C in Naples, Campania in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 103 mm of rainfall in the month.

  • 12°C maximum daytime temperature in January in Naples12
    12°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in January in Naples14
    14 days with some rainfall
  • 4°C minimum night-time temperature in January in Naples4
    4°C min night temperature
  • 10 hours of daylight per day in January in Naples10
    10 hours of daylight per day
  • No heat & humidity in January in Naples0
    No heat & humidity
  • 103 mm monthly rainfall in January in Naples103
    103 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Naples2
    2 (Low) UV index
  • 15°C sea temperature in January in Naples15
    15°C sea temperature

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The January weather guide for Campania (Naples) 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)

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More about the Campania

How warm is it in Naples in January?

Daytime temperatures usually reach 12°C in Naples in January, falling to 4°C at night.

How sunny is it in Naples in January?

There are normally 4 hours of bright sunshine each day in Naples in January - that's 38% of daylight hours.

How warm is the sea around Naples in January?

The average sea temperature around Naples in January is 15°C.

Does it rain in Naples in January?

There are usually 14 days with some rain in Naples in January and the average monthly rainfall is 103mm.

Naples January sunrise & sunset times

Browse the sunrise and sunset times for Naples in January 2026. Select a month to view Naples sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:27 16:46
Friday, 16th January 2026 07:25 17:01
Saturday, 31st January 2026 07:14 17:19

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