Kahului vs Lihue, Kauai: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 324 km apart · long-term climate normals (NASA POWER, 2001–2020)
Lihue, Kauai is the sunnier overall: about 3,311 hours of sunshine a year to Kahului's 3,218. Kahului has the higher Sunshine Score in 5 of 12 months; the other 7 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Kahului | Lihue, Kauai | |
|---|---|---|
| Sunshine hours / year | 3,218 | 3,311 |
| Sunniest month | June (93/100) | June (91/100) |
| Nov–Feb average score | 86/100 | 83/100 |
| Jun–Aug average score | 92/100 | 91/100 |
| Rain / year | 620 mm | 825 mm |
| Warmest sea | 27°C / 81°F | 27°C / 81°F |
| Peak midday UV | 12 (extreme) | 12 (extreme) |
Kahului vs Lihue, Kauai month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Kahului | Lihue, Kauai | Kahului | Lihue, Kauai | Kahului | Lihue, Kauai | Kahului | Lihue, Kauai | |
| January | 87 | 86 | 24° | 24° | 61 | 68 | 25° | 25° |
| February | 87 | 83 | 24° | 24° | 63 | 84 | 25° | 24° |
| March | 83 | 76 | 24° | 24° | 83 | 125 | 24° | 24° |
| April | 90 | 88 | 24° | 24° | 47 | 57 | 25° | 24° |
| May | 91 | 90 | 25° | 26° | 37 | 49 | 25° | 26° |
| June | 93 | 91 | 26° | 26° | 28 | 43 | 26° | 26° |
| July | 92 | 91 | 26° | 27° | 32 | 41 | 26° | 26° |
| August | 91 | 90 | 27° | 27° | 40 | 47 | 27° | 27° |
| September | 91 | 89 | 27° | 27° | 38 | 51 | 27° | 27° |
| October | 88 | 85 | 27° | 27° | 55 | 76 | 26° | 27° |
| November | 86 | 83 | 26° | 26° | 65 | 84 | 26° | 26° |
| December | 85 | 80 | 25° | 25° | 71 | 100 | 26° | 26° |
The sunnier month by month: Jan even · Feb Kahului · Mar Kahului · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct Kahului · Nov Kahului · Dec Kahului.
When to pick which
- November–February: Kahului (average score 86/100 vs 83). Daytime highs are similar (25°C vs 25°C). See the winter sun ranking.
- March–May: Kahului (average score 88/100 vs 85). Daytime highs are similar (24°C vs 25°C).
- June–August: too close to call — Kahului averages 92/100, Lihue, Kauai 91/100. Daytime highs are similar (26°C vs 27°C).
- September–October: Kahului (average score 90/100 vs 87). Daytime highs are similar (27°C vs 27°C).
Sea temperature
Both seas peak at 27°C / 81°F. Swimmable water (21°C+): Kahului all year, Lihue, Kauai all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Kahului weather by month · Lihue, Kauai weather by month · Best time to visit United States.
More comparisons: Kahului vs Honolulu · Kahului vs Kailua-Kona · Kahului vs Hilo · Lihue, Kauai vs Honolulu · Lihue, Kauai vs Kailua-Kona · all head-to-heads