Hilo weather by month & the best time to visit
🇺🇸 United States · beach resort · tropical rainforest climate
The best time to visit Hilo is June — its sunniest month (Sunshine Score 71/100), with January and February close behind. Hilo averages about 2,716 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 132 mm of rain in June.
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- Sun hours / year
- 2,716
- Sunniest month
- June
- Peak score
- 71/100
- Rain / year
- 2,301 mm
- Midday UV at peak
- 10 (very high)
- Sea at warmest
- 27°C / 81°F
- Elevation
- 8 m
When is the best time to visit Hilo?
For sunshine, the best time to visit Hilo is June, then January and February. The dullest month is January (67/100, 192 mm of rain). The full month-by-month picture is in the table below.
How sunny is Hilo?
Hilo gets a lot of sun: around 2,716 hours a year. Conditions barely change through the year — only 4 Sunshine Score points separate June from January. It ranks #135 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 2,301 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 67 | 25° / 77°F | 21° / 70°F | 192 mm | 6 | 25° / 77°F |
| February | 67 | 25° / 77°F | 21° / 70°F | 183 mm | 7 | 24° / 75°F |
| March | 67 | 25° / 77°F | 21° / 70°F | 272 mm | 8 | 24° / 75°F |
| April | 67 | 25° / 77°F | 22° / 72°F | 241 mm | 9 | 24° / 75°F |
| May | 67 | 26° / 79°F | 22° / 72°F | 175 mm | 9 | 24° / 75°F |
| June | 71 | 27° / 81°F | 23° / 73°F | 132 mm | 9 | 25° / 77°F |
| July | 67 | 27° / 81°F | 23° / 73°F | 152 mm | 10 | 26° / 79°F |
| August | 67 | 28° / 82°F | 24° / 75°F | 168 mm | 10 | 27° / 81°F |
| September | 67 | 28° / 82°F | 24° / 75°F | 166 mm | 9 | 27° / 81°F |
| October | 67 | 27° / 81°F | 24° / 75°F | 184 mm | 8 | 27° / 81°F |
| November | 67 | 26° / 79°F | 23° / 73°F | 216 mm | 6 | 26° / 79°F |
| December | 67 | 25° / 77°F | 22° / 72°F | 220 mm | 6 | 26° / 79°F |
Sea temperature in Hilo by month
The sea off Hilo is warmest in August at around 27°C / 81°F, and coolest in February at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Hilo on the interactive sunshine globe →
Nearby places for sunshine
- Kailua-Kona United States · 105 km · best in Jun · 3,315 h sun/yr
- Kahului United States · 195 km · best in Jun · 3,218 h sun/yr
- Honolulu United States · 349 km · best in Jun · 3,113 h sun/yr
- Lihue, Kauai United States · 511 km · best in Jun · 3,311 h sun/yr
- San Francisco United States · 3,728 km · best in Sep · 2,879 h sun/yr
- Monterey United States · 3,728 km · best in Aug · 3,366 h sun/yr
Nearest destinations
- Waimea (Kamuela) United States · 72 km · 3,019 h sun/yr · best in Jun
- Hana United States · 156 km · 3,218 h sun/yr · best in Jun
- Lahaina United States · 219 km · 3,218 h sun/yr · best in Jun
- Lanai City United States · 231 km · 3,218 h sun/yr · best in Jun
Head-to-head
How Hilo compares month by month: Hilo vs Honolulu · Hilo vs Kahului · Hilo vs Kailua-Kona · all comparisons
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