Kauai Island (HI)
August
Weather in Kauai Island, Hawaii for August 2026
Your guide to Kauai Island weather in August - trends and predictions
Until now, August 2026 in Kauai Island has been nearly identical to the historical average, with a temperature of 25.9 °F (showing only a slight deviation of 0.2 °F).
The forecast for the upcoming days in Kauai Island predicts a temperature of 27.8 °F, which is slightly above the historical average.
In general, the average temperature in Kauai Island at the beginning of August is 26.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 26.3 °F by the end of August.
Kauai Island experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 66.2 mm.
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Temperatures
Rain 🌧️
More
4
Dry days
27
Rainy days
0
Snow days
26°/24°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Kauai Island Weather August
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Temperatures trend during August in Kauai Island
See the weather trend as well as the moving average line
August weather in Kauai Island day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Light rain shower | 26° /23° | 3.5 mm | 6 | |
| Aug. 2 | Patchy rain possible | 26° /23° | 2.5 mm | 6 | |
| Aug. 3 | Patchy rain possible | 26° /23° | 1.5 mm | 6 | |
| Aug. 4 | Patchy rain possible | 26° /24° | 5.8 mm | 7 | |
| Aug. 5 | Patchy rain possible | 26° /24° | 1.5 mm | 6 | |
| Aug. 6 | Patchy rain possible | 26° /23° | 1 mm | 6 | |
| Aug. 7 | Patchy rain possible | 27° /23° | 1 mm | 7 | |
| Aug. 8 | Patchy rain possible | 26° /24° | 3.7 mm | 7 | |
| Aug. 9 | Patchy rain possible | 26° /24° | 3 mm | 6 | |
| Aug. 10 | Patchy rain possible | 26° /24° | 4.3 mm | 6 | |
| Aug. 11 | Patchy rain possible | 28° /24° | 0.5 mm | 11.4 | |
| Aug. 12 | Patchy rain possible | 28° /23° | 0.6 mm | 11.7 | |
| Aug. 13 | Patchy rain possible | 28° /22° | 0.3 mm | 12.9 | |
| Aug. 14 | Patchy rain possible | 28° /24° | 0.4 mm | 11.9 | |
| Aug. 15 | Patchy rain possible | 28° /24° | 0.2 mm | 6 | |
| Aug. 16 | Patchy rain possible | 27° /24° | 2.6 mm | 6 | |
| Aug. 17 | Patchy rain possible | 27° /25° | 10.3 mm | 6 | |
| Aug. 18 |  Sunny | 28° /25° | 0.9 mm | 7 | |
| Aug. 19 | Patchy rain possible | 27° /24° | 0.9 mm | 7 | |
| Aug. 20 | Patchy rain possible | 28° /23° | 1.2 mm | 6 | |
| Aug. 21 | Patchy rain possible | 28° /25° | 2.5 mm | 6 | |
| Aug. 22 | Patchy rain possible | 28° /25° | 1.8 mm | 6 | |
| Aug. 23 | Patchy rain possible | 28° /25° | 0.8 mm | 6 | |
| Aug. 24 | Patchy rain possible | 28° /24° | 0.8 mm | 7 | |
| Aug. 25 | Light rain shower | 26° /24° | 3.4 mm | 6 | |
| Aug. 26 | Light rain shower | 26° /24° | 1.8 mm | 6 | |
| Aug. 27 | Light rain shower | 26° /24° | 1.1 mm | 6 | |
| Aug. 28 | Patchy rain possible | 26° /23° | 6 mm | 6 | |
| Aug. 29 | Patchy rain possible | 26° /24° | 6.5 mm | 6 | |
| Aug. 30 | Light rain shower | 27° /24° | 2.2 mm | 6 | |
| Aug. 31 | Patchy rain possible | 27° /24° | 0.9 mm | 6 | |
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Important Notice
Our weather forecast for Kauai Island in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kauai Island forecast closer to your planned date for the most up-to-date weather information.
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Kauai Island in August - FAQ
What are the expected maximum and minimum temperatures in Kauai Island during August?
During August, expect a variety of temperatures with highs around 26° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Kauai Island during August?
Moderate rainfall is anticipated in Kauai Island during August, with a total of 66.2 mm spread over approximately 27 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Kauai Island during August?
The average wind speed in Kauai Island during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Kauai Island
Explore the daily rainfall trends and prepare for Kauai Islands August weather 💧
Typically, Kauai Island has 27 rainy days in August with a total of 66.2 mm of rainfall.
UV exposure in Kauai Island during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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