Kailua-Kona vs Hilo: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 105 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 Hilo's 2,716. Kailua-Kona has the higher Sunshine Score in 12 of 12 months — a clean sweep.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Kailua-Kona | Hilo | |
|---|---|---|
| Sunshine hours / year | 3,315 | 2,716 |
| Sunniest month | June (90/100) | June (71/100) |
| Nov–Feb average score | 83/100 | 67/100 |
| Jun–Aug average score | 88/100 | 68/100 |
| Rain / year | 938 mm | 2,301 mm |
| Warmest sea | 28°C / 82°F | 27°C / 81°F |
| Peak midday UV | 12 (extreme) | 10 (very high) |
Kailua-Kona vs Hilo month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Kailua-Kona | Hilo | Kailua-Kona | Hilo | Kailua-Kona | Hilo | Kailua-Kona | Hilo | |
| January | 84 | 67 | 25° | 25° | 81 | 192 | 26° | 25° |
| February | 83 | 67 | 25° | 25° | 88 | 183 | 26° | 24° |
| March | 74 | 67 | 25° | 25° | 134 | 272 | 26° | 24° |
| April | 83 | 67 | 25° | 25° | 85 | 241 | 25° | 24° |
| May | 87 | 67 | 26° | 26° | 66 | 175 | 26° | 24° |
| June | 90 | 71 | 26° | 27° | 50 | 132 | 27° | 25° |
| July | 89 | 67 | 27° | 27° | 53 | 152 | 27° | 26° |
| August | 85 | 67 | 27° | 28° | 74 | 168 | 28° | 27° |
| September | 90 | 67 | 27° | 28° | 49 | 166 | 28° | 27° |
| October | 87 | 67 | 27° | 27° | 67 | 184 | 28° | 27° |
| November | 82 | 67 | 27° | 26° | 93 | 216 | 27° | 26° |
| December | 81 | 67 | 26° | 25° | 98 | 220 | 26° | 26° |
The sunnier month by month: Jan Kailua-Kona · Feb Kailua-Kona · Mar Kailua-Kona · Apr Kailua-Kona · May Kailua-Kona · Jun Kailua-Kona · Jul Kailua-Kona · Aug Kailua-Kona · Sep Kailua-Kona · Oct Kailua-Kona · Nov Kailua-Kona · Dec Kailua-Kona.
When to pick which
- November–February: Kailua-Kona (average score 83/100 vs 67). Daytime highs are similar (26°C vs 25°C). See the winter sun ranking.
- March–May: Kailua-Kona (average score 81/100 vs 67). Daytime highs are similar (25°C vs 25°C).
- June–August: Kailua-Kona (average score 88/100 vs 68). Daytime highs are similar (27°C vs 27°C).
- September–October: Kailua-Kona (average score 89/100 vs 67). Daytime highs are similar (27°C vs 28°C).
Sea temperature
Kailua-Kona's sea gets warmer: 28°C / 82°F at its peak vs 27°C. Swimmable water (21°C+): Kailua-Kona all year, Hilo all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Kailua-Kona weather by month · Hilo weather by month · Best time to visit United States.
More comparisons: Kailua-Kona vs Honolulu · Kailua-Kona vs Kahului · Kailua-Kona vs Lihue, Kauai · Hilo vs Honolulu · Hilo vs Kahului · all head-to-heads