4 islands compared with data-backed recommendations
| Island | Score | Top Beach |
|---|---|---|
| Oʻahu | 7/10 |
Waikiki |
| Maui | 8/10 |
Kihei |
| Big Island | 9/10 |
Hapuna Beach |
| Kauaʻi | 6/10 |
— |
Top beach: Hapuna Beach
Why: Kohala coast has best combination of sunshine, warmth, and low humidity
Caveat: Microclimate variation is extreme — Hilo is rainy, Kona is dry
Top beach: Kihei
Consistently warm and dry on the south coast
North shore gets heavy rain, even the sunny south can be overcast
Based on our analysis, Big Island is the top pick for best weather in Hawaii. Kohala coast has best combination of sunshine, warmth, and low humidity. The top beach for this is Hapuna Beach.
Big Island is generally good for best weather throughout the year, though conditions vary by season. Microclimate variation is extreme — Hilo is rainy, Kona is dry
While all four main islands offer some version of this experience, the quality varies significantly. Kauaʻi is the weakest option because: North shore gets heavy rain, even the sunny south can be overcast
Tours listed via Viator and GetYourGuide. Safe to Swim Hawaii may earn a commission if you book, at no extra cost to you.
Free alerts when advisories change at your beach.
⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — it is not affiliated with the Hawaii Department of Health, any entity mentioned on this page, or any government agency or hotel brand. Water quality ratings on this site are estimates based on publicly available testing data and geographic analysis. They are not real-time measurements and may not reflect current conditions.
Always verify current water quality conditions with the Hawaii Department of Health Clean Water Branch before entering the water. This site is for informational purposes only and should not be the sole basis for any swimming decisions.
When in doubt, donʻt go out. 🤙