Rainbow Falls — a waterfall in Hawaii County, Hawaii at about 113 m (371 ft) above sea level — is a popular subject for landscape photographers. The nearest town is Hilo, about 2.3 km (1.4 mi) away (Rainbow Falls lies WSW of town).
Rainbow Falls, or Waiānuenue, is a waterfall located in Hilo, Hawaii. It is 80 ft (24 m) tall and almost 100 ft (30 m) in diameter. The falls are part of the Hawai'i State Parks. At Rainbow Falls, the Wailuku River rushes into a large pool below. The gorge is blanketed by lush, dense nonnative tropical rainforest and the turquoise-colored pool is bordered by beautiful, although nonnative, wild ginger. Monstera is also in abundance. The falls are accessible via Wailuku River State Park, Waiānuenue Avenue, coordinates 19°43′9″N 155°6′34″W, and are best seen from the park's viewing platform. Known in the Hawaiian language as Waiānuenue (literally "rainbow water"), the falls flows over a natural lava cave, the mythological home to Hina, an ancient Hawaiian goddess. Rainbow Falls derives its name from the fact that, on sunny mornings around 10 am, rainbows can be seen in the mist thrown...From the Wikipedia article “Rainbow Falls (Hawaii)”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Rainbow Falls the sunrise point swings a long way through the year: about 65° (ENE) at the June solstice and 115° (ESE) in late December. Sunset moves from 295° (WNW) in June to 245° (WSW) in December, and the midday sun climbs to 86° in summer but only 47° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:25 AM | 90° E | 6:32 PM | 270° W | 70° | 12h 07m |
| June solstice (Jun 21) | 5:43 AM | 65° ENE | 7:03 PM | 295° WNW | 86° | 13h 19m |
| September equinox (Sep 22) | 6:10 AM | 89° E | 6:18 PM | 271° W | 70° | 12h 08m |
| December solstice (Dec 21) | 6:51 AM | 115° ESE | 5:48 PM | 245° WSW | 47° | 10h 56m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Waterfalls photograph best in soft, even light: overcast days, deep shade, or the hour after sunrise before direct sun hits the water. Bright sun on white water blows highlights and adds harsh contrast.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:35 AM | 6:58 AM | 7:30 AM | 5:31 PM | 6:03 PM | 6:26 PM | 11h 04m |
| February | 6:28 AM | 6:50 AM | 7:20 AM | 5:51 PM | 6:21 PM | 6:43 PM | 11h 31m |
| March | 6:08 AM | 6:30 AM | 6:59 AM | 6:02 PM | 6:31 PM | 6:53 PM | 12h 01m |
| April | 5:41 AM | 6:03 AM | 6:33 AM | 6:09 PM | 6:39 PM | 7:01 PM | 12h 36m |
| May | 5:22 AM | 5:46 AM | 6:16 AM | 6:19 PM | 6:50 PM | 7:13 PM | 13h 04m |
| June | 5:18 AM | 5:42 AM | 6:14 AM | 6:30 PM | 7:01 PM | 7:26 PM | 13h 19m |
| July | 5:27 AM | 5:51 AM | 6:22 AM | 6:32 PM | 7:03 PM | 7:27 PM | 13h 13m |
| August | 5:39 AM | 6:02 AM | 6:32 AM | 6:20 PM | 6:50 PM | 7:13 PM | 12h 48m |
| September | 5:47 AM | 6:09 AM | 6:38 AM | 5:55 PM | 6:24 PM | 6:46 PM | 12h 15m |
| October | 5:54 AM | 6:16 AM | 6:45 AM | 5:28 PM | 5:58 PM | 6:20 PM | 11h 42m |
| November | 6:07 AM | 6:30 AM | 7:01 AM | 5:11 PM | 5:42 PM | 6:05 PM | 11h 12m |
| December | 6:24 AM | 6:48 AM | 7:20 AM | 5:13 PM | 5:45 PM | 6:09 PM | 10h 57m |
Local time (Pacific/Honolulu), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Rainbow Falls, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 7.8 hours on a moonless night), and the core peaks around 41° above the southern horizon. Our light-pollution model puts the sky at about Bortle 7 (suburban / urban transition), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 6° | — |
| February | 4:04 AM – 5:34 AM | 1.5 | 27° | SE → SE |
| March | 2:13 AM – 5:13 AM | 3.0 | 38° | SE → SSE |
| April | 12:14 AM – 4:44 AM | 4.5 | 41° | SE → S |
| May | 10:09 PM – 4:19 AM | 6.2 | 41° | SE → SSW |
| June | 8:25 PM – 4:15 AM | 7.8 | 41° | SE → SW |
| July | 8:25 PM – 2:45 AM | 6.3 | 41° | SSE → SW |
| August | 8:07 PM – 12:47 AM | 4.7 | 41° | S → SW |
| September | 7:37 PM – 10:47 PM | 3.2 | 38° | SSW → SW |
| October | 7:11 PM – 8:51 PM | 1.7 | 27° | SW → SW |
| November | Below 10° in darkness | — | 8° | — |
| December | Below 10° in darkness | — | -17° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 7 Bortle 7 — Suburban / urban transition. The whole sky has a grey-white glow; the Milky Way is invisible to the eye. Modeled zenith brightness ≈ 18.82 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show January as the clearest month (about 50% average cloud cover) and March as the cloudiest (62%). August is the warmest month and February the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 79 | 77 | 78 | 76 | 79 | 81 | 80 | 83 | 82 | 79 | 78 | 76 |
| Low °F | 50 | 46 | 48 | 52 | 53 | 55 | 56 | 56 | 56 | 56 | 53 | 50 |
| Precip. (in) | 5.6 | 6.6 | 8.6 | 7.7 | 5.4 | 4.2 | 4.7 | 5.4 | 4.8 | 5.3 | 6.7 | 6.6 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this waterfall
- Keep a microfiber cloth handy — spray drifts onto the lens, especially at the plunge pool.
- Bracket shutter speeds: 1/8 s, 1/2 s and 2 s give very different water textures and you can choose later.
- A 3-stop ND filter lets you use slow shutter speeds even when the light is bright.
- Shoot a vertical and a horizontal frame; tall falls often work better in portrait orientation.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Peak flow is usually in late spring; autumn adds color around the falls, and winter can bring ice formations at colder locations.
Suggested gear: Tripod, Circular polarizer, 3–6 stop ND filter, Lens cloth, Waterproof footwear. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Rainbow Falls, closest first.
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Botanical GardenWaterfallWaterfallWaterfallWaterfallFAQ
When is the best time to photograph Rainbow Falls?
What time is golden hour at Rainbow Falls?
Where does the sun rise and set at Rainbow Falls?
Can you see the Milky Way from Rainbow Falls?
Do you need a permit to photograph at Rainbow Falls?
How far is Rainbow Falls from Hilo?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.