Kahului vs Hilo: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 195 km apart · long-term climate normals (NASA POWER, 2001–2020)
Kahului is the sunnier overall: about 3,218 hours of sunshine a year to Hilo's 2,716. Kahului 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
| Kahului | Hilo | |
|---|---|---|
| Sunshine hours / year | 3,218 | 2,716 |
| Sunniest month | June (93/100) | June (71/100) |
| Nov–Feb average score | 86/100 | 67/100 |
| Jun–Aug average score | 92/100 | 68/100 |
| Rain / year | 620 mm | 2,301 mm |
| Warmest sea | 27°C / 81°F | 27°C / 81°F |
| Peak midday UV | 12 (extreme) | 10 (very high) |
Kahului vs Hilo month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Kahului | Hilo | Kahului | Hilo | Kahului | Hilo | Kahului | Hilo | |
| January | 87 | 67 | 24° | 25° | 61 | 192 | 25° | 25° |
| February | 87 | 67 | 24° | 25° | 63 | 183 | 25° | 24° |
| March | 83 | 67 | 24° | 25° | 83 | 272 | 24° | 24° |
| April | 90 | 67 | 24° | 25° | 47 | 241 | 25° | 24° |
| May | 91 | 67 | 25° | 26° | 37 | 175 | 25° | 24° |
| June | 93 | 71 | 26° | 27° | 28 | 132 | 26° | 25° |
| July | 92 | 67 | 26° | 27° | 32 | 152 | 26° | 26° |
| August | 91 | 67 | 27° | 28° | 40 | 168 | 27° | 27° |
| September | 91 | 67 | 27° | 28° | 38 | 166 | 27° | 27° |
| October | 88 | 67 | 27° | 27° | 55 | 184 | 26° | 27° |
| November | 86 | 67 | 26° | 26° | 65 | 216 | 26° | 26° |
| December | 85 | 67 | 25° | 25° | 71 | 220 | 26° | 26° |
The sunnier month by month: Jan Kahului · Feb Kahului · Mar Kahului · Apr Kahului · May Kahului · Jun Kahului · Jul Kahului · Aug Kahului · Sep Kahului · Oct Kahului · Nov Kahului · Dec Kahului.
When to pick which
- November–February: Kahului (average score 86/100 vs 67). Daytime highs are similar (25°C vs 25°C). See the winter sun ranking.
- March–May: Kahului (average score 88/100 vs 67). Daytime highs are similar (24°C vs 25°C).
- June–August: Kahului (average score 92/100 vs 68). Daytime highs are similar (26°C vs 27°C).
- September–October: Kahului (average score 90/100 vs 67). Daytime highs are similar (27°C vs 28°C).
Sea temperature
Both seas peak at 27°C / 81°F. Swimmable water (21°C+): Kahului all year, Hilo all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Kahului weather by month · Hilo weather by month · Best time to visit United States.
More comparisons: Kahului vs Honolulu · Kahului vs Lihue, Kauai · Kahului vs Kailua-Kona · Hilo vs Honolulu · Hilo vs Kailua-Kona · all head-to-heads