Kauai

    United States

    The Garden Isle thrives with dramatic sea cliffs, deep green canyons, and unrestrained tropical growth.

    Warmest month is August at 30°C on average. Coolest is January at 26°C. Driest reading falls in January with 5 rain days.

    Costs and travel essentials

    • CoffeeWorld Bank PPP baseline
      $4.50 (~$4.50)
      Country-level price estimate for United States, 2026-07-11. Scaled from a US baseline, not a local survey.
    • BeerWorld Bank PPP baseline
      $6.00 (~$6.00)
      Country-level price estimate for United States, 2026-07-11. Scaled from a US baseline, not a local survey.
    • Flight timeMethodology
      15h 30m from London Heathrow
      Great-circle plus routing overhead.
    • Flight CO2eDEFRA 2024 factors
      4,421 kg return from London Heathrow
      DEFRA 2024 economy factors, includes radiative forcing.
    • FCDO advisorygov.uk, snapshot compiled 2026-07-11
      No specific FCDO warnings against travel.
      Check the latest FCDO advice before booking.
    • Tap waterCDC / WHO guidance
      Tap water is generally safe to drink.
    MonthAvg highDaily spreadRain days
    January26°2°C5
    February26°3°C8
    March26°3°C9
    April27°2°C8
    May28°2°C7
    June28°3°C6
    July29°2°C7
    August30°2°C7
    September30°2°C6
    October29°2°C8
    November28°2°C9
    December26°4°C9

    What to do

    • Hike the Kalalau Trail on the Na Pali Coast
    • Take a helicopter tour of Waimea Canyon
    • Kayak the Wailua River to hidden waterfalls

    How we know this

    Values are the average of the last ten calendar years of daily readings from Visual Crossing, snapped to the destination cluster. Daily spread is the width between the 10th and 90th percentiles of daily highs, not a forecast error margin. Rain days count any day with at least 1 mm of precipitation.