Napa weather live forecast

Today's maximum temperature in Napa is expected to be 12°C. Select a day from the live weather forecast for Napa, California, USA for more weather parameters.

  • Saturday
    27th Dec
    Scattered clouds
  • Sunday
    28th Dec
    Scattered clouds
  • Monday
    29th Dec
    Scattered clouds
  • Tuesday
    30th Dec
    Broken clouds
  • Wednesday
    31st Dec
    Sunshine and showers (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:02 on Saturday 27th December 2025 GMT

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The 5-day weather forecast for California (Napa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Napa weather forecast by day

Below are the detailed weather forecasts for Napa for the next 5 days.

Napa weather for Saturday 27th December 2025

Expect scattered clouds in Napa, California with a maximum temperature of 12°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

  • 12°C maximum temperature12
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the North15
    kph wind from N

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Napa weather for Sunday 28th December 2025

Expect scattered clouds in Napa, California with a maximum temperature of 13°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 12 kph from the North-East12
    kph wind from NE

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Napa weather for Monday 29th December 2025

Expect scattered clouds in Napa, California with a maximum temperature of 13°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Gentle breeze of 13 kph from the North-East13
    kph wind from NE

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Napa weather for Tuesday 30th December 2025

Expect broken clouds in Napa, California with a maximum temperature of 12°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

  • 12°C maximum temperature12
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the North-East16
    kph wind from NE

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Napa weather for Wednesday 31st December 2025

Expect sunshine and showers in Napa, California with a maximum temperature of 11°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 16 kph from the north-east.

  • 11°C maximum temperature11
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the North-East16
    kph wind from NE

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  • Save 10% on 2026/2027 holidays in biggest ever TUI sale
  • Max discount £500. T&Cs apply. £500 min spend
  • Travel between 1st May 2026 & 31st Oct 2027 (inclusive)
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Metric (°C / mm)  |  Imperial (°F / inches)

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