Kahului vs Kailua-Kona: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 135 km apart · long-term climate normals (NASA POWER, 2001–2020)
Kailua-Kona is the sunnier overall: about 3,315 hours of sunshine a year to Kahului's 3,218. Kahului has the higher Sunshine Score in 10 of 12 months; the other 2 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 | Kailua-Kona | |
|---|---|---|
| Sunshine hours / year | 3,218 | 3,315 |
| Sunniest month | June (93/100) | June (90/100) |
| Nov–Feb average score | 86/100 | 83/100 |
| Jun–Aug average score | 92/100 | 88/100 |
| Rain / year | 620 mm | 938 mm |
| Warmest sea | 27°C / 81°F | 28°C / 82°F |
| Peak midday UV | 12 (extreme) | 12 (extreme) |
Kahului vs Kailua-Kona month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Kahului | Kailua-Kona | Kahului | Kailua-Kona | Kahului | Kailua-Kona | Kahului | Kailua-Kona | |
| January | 87 | 84 | 24° | 25° | 61 | 81 | 25° | 26° |
| February | 87 | 83 | 24° | 25° | 63 | 88 | 25° | 26° |
| March | 83 | 74 | 24° | 25° | 83 | 134 | 24° | 26° |
| April | 90 | 83 | 24° | 25° | 47 | 85 | 25° | 25° |
| May | 91 | 87 | 25° | 26° | 37 | 66 | 25° | 26° |
| June | 93 | 90 | 26° | 26° | 28 | 50 | 26° | 27° |
| July | 92 | 89 | 26° | 27° | 32 | 53 | 26° | 27° |
| August | 91 | 85 | 27° | 27° | 40 | 74 | 27° | 28° |
| September | 91 | 90 | 27° | 27° | 38 | 49 | 27° | 28° |
| October | 88 | 87 | 27° | 27° | 55 | 67 | 26° | 28° |
| November | 86 | 82 | 26° | 27° | 65 | 93 | 26° | 27° |
| December | 85 | 81 | 25° | 26° | 71 | 98 | 26° | 26° |
The sunnier month by month: Jan Kahului · Feb Kahului · Mar Kahului · Apr Kahului · May Kahului · Jun Kahului · Jul Kahului · Aug Kahului · Sep even · Oct even · Nov Kahului · Dec Kahului.
When to pick which
- November–February: Kahului (average score 86/100 vs 83). Daytime highs are similar (25°C vs 26°C). See the winter sun ranking.
- March–May: Kahului (average score 88/100 vs 81). Daytime highs are similar (24°C vs 25°C).
- June–August: Kahului (average score 92/100 vs 88). Daytime highs are similar (26°C vs 27°C).
- September–October: too close to call — Kahului averages 90/100, Kailua-Kona 89/100. Daytime highs are similar (27°C vs 27°C).
Sea temperature
Kailua-Kona's sea gets warmer: 28°C / 82°F at its peak vs 27°C. Swimmable water (21°C+): Kahului all year, Kailua-Kona all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Kahului weather by month · Kailua-Kona weather by month · Best time to visit United States.
More comparisons: Kahului vs Honolulu · Kahului vs Lihue, Kauai · Kahului vs Hilo · Kailua-Kona vs Honolulu · Kailua-Kona vs Lihue, Kauai · Kailua-Kona vs Hilo · all head-to-heads