Honolulu vs Hilo: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 349 km apart · long-term climate normals (NASA POWER, 2001–2020)
Honolulu is the sunnier overall: about 3,113 hours of sunshine a year to Hilo's 2,716. Honolulu 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
| Honolulu | Hilo | |
|---|---|---|
| Sunshine hours / year | 3,113 | 2,716 |
| Sunniest month | June (91/100) | June (71/100) |
| Nov–Feb average score | 82/100 | 67/100 |
| Jun–Aug average score | 90/100 | 68/100 |
| Rain / year | 771 mm | 2,301 mm |
| Warmest sea | 27°C / 81°F | 27°C / 81°F |
| Peak midday UV | 12 (extreme) | 10 (very high) |
Honolulu vs Hilo month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Honolulu | Hilo | Honolulu | Hilo | Honolulu | Hilo | Honolulu | Hilo | |
| January | 84 | 67 | 25° | 25° | 71 | 192 | 25° | 25° |
| February | 82 | 67 | 25° | 25° | 82 | 183 | 25° | 24° |
| March | 80 | 67 | 25° | 25° | 94 | 272 | 24° | 24° |
| April | 88 | 67 | 26° | 25° | 54 | 241 | 25° | 24° |
| May | 89 | 67 | 27° | 26° | 47 | 175 | 26° | 24° |
| June | 91 | 71 | 27° | 27° | 37 | 132 | 26° | 25° |
| July | 90 | 67 | 28° | 27° | 40 | 152 | 26° | 26° |
| August | 89 | 67 | 28° | 28° | 44 | 168 | 27° | 27° |
| September | 88 | 67 | 28° | 28° | 50 | 166 | 27° | 27° |
| October | 84 | 67 | 28° | 27° | 73 | 184 | 27° | 27° |
| November | 82 | 67 | 27° | 26° | 86 | 216 | 26° | 26° |
| December | 80 | 67 | 25° | 25° | 93 | 220 | 26° | 26° |
The sunnier month by month: Jan Honolulu · Feb Honolulu · Mar Honolulu · Apr Honolulu · May Honolulu · Jun Honolulu · Jul Honolulu · Aug Honolulu · Sep Honolulu · Oct Honolulu · Nov Honolulu · Dec Honolulu.
When to pick which
- November–February: Honolulu (average score 82/100 vs 67). Daytime highs are similar (26°C vs 25°C). See the winter sun ranking.
- March–May: Honolulu (average score 86/100 vs 67). Daytime highs are similar (26°C vs 25°C).
- June–August: Honolulu (average score 90/100 vs 68). Daytime highs are similar (28°C vs 27°C).
- September–October: Honolulu (average score 86/100 vs 67). Daytime highs are similar (28°C vs 28°C).
Sea temperature
Both seas peak at 27°C / 81°F. Swimmable water (21°C+): Honolulu all year, Hilo all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Honolulu weather by month · Hilo weather by month · Best time to visit United States.
More comparisons: Honolulu vs Kahului · Honolulu vs Lihue, Kauai · Honolulu vs Kailua-Kona · Hilo vs Kahului · Hilo vs Kailua-Kona · all head-to-heads