Kauai County (Kauai Island)
May
Weather in Kauai County, Hawaii for May 2026
Your guide to Kauai County weather in May - trends and predictions
Until now, May 2026 in Kauai County is slightly cooler than the historical average by -0.9 °F.
The forecast for the next days in Kauai County predicts temperatures to be around 25 °F, close to the historical average.
In general, the average temperature in Kauai County at the beginning of May is 24.3 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 24.7 °F by the end of May.
Kauai County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 184.7 mm.
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Temperatures
Rain 🌧️
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0
Dry days
31
Rainy days
0
Snow days
24°/22°
Temperatures
23 km/h
Avg max wind
75 %
Avg humidity
Kauai County Weather May
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Temperatures trend during May in Kauai County
See the weather trend as well as the moving average line
May weather in Kauai County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 25° /22° | 2.4 mm | 6 | |
| May 2 | Patchy rain possible | 24° /22° | 1.4 mm | 6 | |
| May 3 | Light rain shower | 25° /22° | 4.6 mm | 6 | |
| May 4 | Patchy rain possible | 24° /22° | 3.9 mm | 5 | |
| May 5 | Light rain shower | 24° /22° | 6.9 mm | 6 | |
| May 6 | Light rain shower | 24° /22° | 10.1 mm | 8 | |
| May 7 | Light rain shower | 24° /21° | 6.2 mm | 6 | |
| May 8 | Light rain shower | 24° /21° | 8.5 mm | 5 | |
| May 9 |  Patchy light drizzle | 24° /22° | 5.8 mm | 6 | |
| May 10 | Light rain shower | 24° /22° | 8.4 mm | 5 | |
| May 11 | Patchy rain possible | 25° /22° | 1.4 mm | 10.5 | |
| May 12 | Patchy rain possible | 25° /22° | 1.4 mm | 7.5 | |
| May 13 |  Moderate rain | 24° /22° | 5.8 mm | 11.2 | |
| May 14 | Moderate rain | 25° /22° | 5.6 mm | 10.8 | |
| May 15 | Patchy rain possible | 25° /22° | 1.2 mm | 0 | |
| May 16 | Patchy rain possible | 26° /22° | 0.3 mm | 5 | |
| May 17 | Patchy rain possible | 26° /22° | 0.3 mm | 5 | |
| May 18 | Patchy rain possible | 25° /23° | 0.4 mm | 5 | |
| May 19 | Patchy rain possible | 26° /22° | 0.2 mm | 5 | |
| May 20 | Patchy rain possible | 26° /23° | 0.7 mm | 5 | |
| May 21 | Patchy rain possible | 25° /23° | 0.7 mm | 5 | |
| May 22 | Patchy rain possible | 25° /22° | 0.5 mm | 5 | |
| May 23 | Patchy rain possible | 26° /22° | 0.3 mm | 5 | |
| May 24 | Patchy rain possible | 26° /22° | 0.4 mm | 5 | |
| May 25 | Light rain shower | 25° /22° | 3.8 mm | 6 | |
| May 26 | Patchy rain possible | 24° /22° | 1.8 mm | 5 | |
| May 27 | Patchy rain possible | 24° /22° | 1.2 mm | 5 | |
| May 28 | Patchy rain possible | 25° /22° | 1.3 mm | 6 | |
| May 29 | Patchy rain possible | 25° /22° | 1.1 mm | 6 | |
| May 30 | Patchy rain possible | 25° /22° | 2.7 mm | 6 | |
| May 31 | Light rain shower | 25° /22° | 5.5 mm | 6 | |
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Important Notice
Our weather forecast for Kauai County in May 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 County forecast closer to your planned date for the most up-to-date weather information.
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Kauai County in May - FAQ
What are the expected maximum and minimum temperatures in Kauai County during May?
During May, expect a variety of temperatures with highs around 24° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Kauai County during May?
Significant rainfall exceeding 184.7 mm is expected in Kauai County during May, occurring over more than 31 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Kauai County during May?
The average wind speed in Kauai County during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Kauai County
Explore the daily rainfall trends and prepare for Kauai Countys May weather 💧
Typically, Kauai County has 31 rainy days in May with a total of 184.7 mm of rainfall.
UV exposure in Kauai County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Kauai County?Get accurate weather forecasts for Kauai County, located at latitude 22.049 and longitude -159.531. Stay updated with localized weather information tailored for Kauai County.
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