Weekly note
Kauaʻi: An aerial view of the lush green Na Pali Coast mountains in Kauai, Hawaii

The numbers

Daily high27°C
Nightly low23°C
Feels like, afternoon31°C
Rainy days, 1 mm or more17 · 163 mm
Humidity80%
Sunshine11.9 h/day
Daylight12.9 h/day
Hiking2 of 31 days dry and 10–27 °C
Beach and sea14 of 31 days dry and 23–35 °C; sea 27 °C, warm
Crowds65 / 100, higher is quieter

Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.

Weather read at Kapaʻa, on the east coast, 13 km from the airport (LIH): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.

How busy it gets

August: busy. Busiest in August and November; quietest in January and March.

Kauaʻi in pictures

What to pack

  • Summer clothes by day, highs around 27°C.
  • Rain gear you will actually use: about 17 rainy days and 163 mm.
  • Sun protection: about 12 hours of sunshine a day.
  • Humidity averages 80%; breathable fabrics dry faster.

Each line is a threshold over the ten-year figures above, not advice from anywhere else.

Before you go

Type A and B plugs at 120 V. Drives on the right. The currency is the United states dollar. No UK Foreign Office advice against travel. Everything for United States: cost of living, languages, emergency numbers and health.

On arrival in Kauaʻi: the apps, paying, getting around, tipping and the emergency numbers.

August elsewhere

In August from

The other months at Kauaʻi

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