Rule Rainbow Chaser

Rainbow Chaser Forecast for Waimea Canyon, Hawaii

Lihue, Hawaii, United States

Waimea Canyon exposes red volcanic walls, deep ravines, and narrow waterfalls; roadside overlooks reveal overlapping ridges toward the coast.

Currently

Real-time conditions

Rainbow Probability

Sun Elevation65.1° (Daylight)

Local Precipitation0.7mm

Local Rain0.0mm

Local Showers0.0mm

Local Precipitation Chance53%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Possible Rainbow

Waimea Canyon

Tomorrow · 17:00–18:00 · 1h window

Medium confidence

48%

🌈Rainbow Probability70%

Sun Elevation: 29.6° (Daylight)

Local Precipitation: 0.4mm

Local Rain: 0.0mm

Local Showers: 0.1mm

Possible Rainbow at Sunset

Waimea Canyon

Tomorrow · 18:00–19:00

🌈Rainbow Probability:70%

Medium

Possible Rainbow

Waimea Canyon

Fri, Aug 7 · 08:00–09:00

🌈Rainbow Probability:70%

Medium

Tentative Chance of Rainbow

Waimea Canyon

Sun, Aug 9 · 08:00–09:00

🌈Rainbow Probability:60%

Low

Tentative Chance of Rainbow at Sunset

Waimea Canyon

Sun, Aug 9 · 18:00–19:00

🌈Rainbow Probability:60%

Low

Promising Chance of Rainbow

Waimea Canyon

Mon, Aug 10 · 07:00–10:00

🌈Rainbow Probability:71.7-90%

Low

Tentative Chance of Rainbow

Waimea Canyon

Wed, Aug 12 · 08:00–09:00

🌈Rainbow Probability:60%

Low

+4 more windows in the next 14 days

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Rainbow Chaser conditions across Hawaii. The requirements and hourly values below show how those signals apply at Waimea Canyon.

Explore Rainbow Chaser conditions across Hawaii →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Waimea Canyon during the last 365 days.

Last 30 days

recorded matching windows · 59% average confidence

Last 90 days

160

recorded matching windows · 59% average confidence

Last 365 days

288

recorded matching windows · 58% average confidence

Most frequent recorded start hour

17:00 local time, shared by 65 of 288 matches recorded in the last 365 days.

Most represented month

July, with 64 of 288 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour

5matching hours in the next 95 hoursJump to next match

AND logic: all conditions required

Meets requirement

Misses requirement

Time Pacific/Honolulu	Rainbow Probability ≥ 60.0%	Visibility ≥ 8000.0m
Tue, Aug 4
10:00	0%	24135m
11:00	0%	24033m
12:00	0%	23368m
13:00	0%	23695m
14:00	0%	24134m
15:00	0%	23961m
16:00	0%	23887m
17:00	60%	24134m
18:00	60%	24134m
19:00	0%	24134m
20:00	0%	24135m
21:00	0%	24134m
22:00	0%	24135m
23:00	0%	24134m
Wed, Aug 5
24:00	0%	13106m
01:00	0%	19156m
02:00	0%	24032m
03:00	0%	24134m
04:00	0%	24134m
05:00	0%	24134m
06:00	0%	24135m
07:00	0%	24134m
08:00	0%	19002m
09:00	58%	14759m
10:00	0%	23271m
11:00	0%	24134m
12:00	0%	24135m
13:00	0%	24134m
14:00	0%	24135m
15:00	0%	24134m
16:00	0%	24134m
17:00	0%	24135m
18:00	0%	24134m
19:00	0%	24134m
20:00	0%	24134m
21:00	0%	23856m
22:00	0%	24135m
23:00	0%	12294m
Thu, Aug 6
24:00	0%	11850m
01:00	0%	21098m
02:00	0%	23909m
03:00	0%	24135m
04:00	0%	24135m
05:00	0%	19919m
06:00	0%	24135m
07:00	0%	23891m
08:00	0%	23310m
09:00	42%	23371m
10:00	0%	23890m
11:00	0%	24135m
12:00	0%	24135m
13:00	0%	24134m
14:00	0%	21402m
15:00	0%	24134m
16:00	0%	23621m
17:00	70%	21070m
18:00	70%	17043m
19:00	0%	12498m
20:00	0%	24027m
21:00	0%	22132m
22:00	0%	20620m
23:00	0%	24134m
Fri, Aug 7
24:00	0%	24134m
01:00	0%	24135m
02:00	0%	23195m
03:00	0%	17392m
04:00	0%	20049m
05:00	0%	17625m
06:00	0%	24135m
07:00	0%	24134m
08:00	70%	24135m
09:00	59%	23759m
10:00	0%	16687m
11:00	0%	22047m
12:00	0%	24135m
13:00	0%	24134m
14:00	0%	24135m
15:00	0%	24134m
16:00	0%	24135m
17:00	0%	24135m
18:00	0%	24135m
19:00	0%	24134m
20:00	0%	24135m
21:00	0%	21951m
22:00	0%	19767m
23:00	0%	17582m
Sat, Aug 8
24:00	0%	19603m
01:00	0%	21623m
02:00	0%	23643m
03:00	0%	23807m
04:00	0%	23971m
05:00	0%	24135m
06:00	0%	24135m
07:00	55%	24135m
08:00	55%	24135m

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Rainbow Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time Pacific/Honolulu	Precipitation Chance %	Rainfall mm	Showers mm	Solar Elevation °	Sunshine Duration seconds	Total Cloud Coverage %	Total Precipitation mm
Wed, Aug 5 Sunrise 06:11 Sunset 19:14
11:00	53%	0mm	0.01mm	65°	3600seconds	100%	0.69mm
12:00	54%	0mm	0.05mm	79°	3600seconds	100%	0.69mm
13:00	55%	0mm	0.02mm	83°	3600seconds	100%	0.69mm
14:00 ☾	56%	0mm	0.03mm	71°	3600seconds	100%	0.75mm
15:00 ☾	50%	0mm	0.01mm	57°	3600seconds	100%	0mm
16:00 ☾	45%	0mm	0.01mm	44°	3600seconds	99%	0mm
17:00 ☾	39%	0mm	0.01mm	30°	3600seconds	99%	0mm
18:00 ☾	53%	0mm	0.02mm	16°	3600seconds	100%	0.06mm
19:00 ☾	67%	0mm	0.07mm	2.7°	3600seconds	100%	0.06mm
20:00 ☾	82%	0mm	0.03mm	-11°	3600seconds	93%	0.19mm
21:00 ☾	82%	0mm	0.08mm	-23°	0seconds	100%	0.06mm
22:00 ☾	82%	0mm	0.06mm	-34°	0seconds	100%	0.13mm
23:00 ☾	82%	0mm	0.38mm	-44°	0seconds	100%	0.31mm
Thu, Aug 6 Sunrise 06:12 Sunset 19:14
24:00 ☾	86%	0mm	0.33mm	-50°	0seconds	100%	0.5mm
01:00 ☾	90%	0mm	0.15mm	-51°	0seconds	100%	0.69mm
02:00 ☾	95%	0mm	0.1mm	-47°	0seconds	100%	0.81mm
03:00 ☾	82%	0mm	0.07mm	-39°	0seconds	100%	0.13mm
04:00 ☾	69%	0mm	0.06mm	-28°	0seconds	100%	0.31mm
05:00 ☾	56%	0mm	0.22mm	-16°	0seconds	100%	0.5mm
06:00 ☾	59%	0mm	0.03mm	-3.4°	0seconds	100%	0.69mm
07:00	62%	0mm	0.1mm	9.9°	0seconds	100%	0.81mm
08:00	65%	0mm	0.17mm	24°	0seconds	99%	0.88mm
09:00	68%	0.01mm	0.09mm	37°	3600seconds	100%	0.06mm
10:00	70%	0mm	0.07mm	51°	3600seconds	98%	0.19mm
11:00	72%	0mm	0.03mm	65°	3600seconds	100%	0.25mm
12:00	76%	0mm	0.06mm	78°	3600seconds	100%	0.31mm
13:00	80%	0mm	0.08mm	83°	3600seconds	100%	0.38mm
14:00 ☾	85%	0mm	0.16mm	71°	3600seconds	100%	0.5mm
15:00 ☾	75%	0mm	0.23mm	57°	3600seconds	100%	0.13mm
16:00 ☾	66%	0mm	0.2mm	43°	3600seconds	100%	0.25mm
17:00 ☾	56%	0mm	0.14mm	30°	3600seconds	100%	0.44mm
18:00 ☾	65%	0mm	0.29mm	16°	3600seconds	100%	0.63mm
19:00 ☾	73%	0mm	0.44mm	2.6°	3600seconds	100%	1mm
20:00 ☾	82%	0mm	0.15mm	-11°	3600seconds	100%	1.3mm
21:00 ☾	67%	0mm	0.1mm	-23°	0seconds	100%	0.19mm
22:00 ☾	53%	0mm	0.14mm	-35°	0seconds	100%	0.25mm
23:00 ☾	39%	0mm	0.02mm	-44°	0seconds	100%	0.31mm
Fri, Aug 7 Sunrise 06:12 Sunset 19:13
24:00 ☾	39%	0mm	0.02mm	-50°	0seconds	100%	0.38mm
01:00 ☾	39%	0mm	0.03mm	-51°	0seconds	66%	0.38mm
02:00 ☾	39%	0mm	0.09mm	-47°	0seconds	99%	0.44mm
03:00 ☾	39%	0mm	0.53mm	-39°	0seconds	100%	0.19mm
04:00 ☾	39%	0mm	0.26mm	-28°	0seconds	99%	0.44mm
05:00 ☾	39%	0mm	0.19mm	-16°	0seconds	100%	0.69mm
06:00 ☾	39%	0mm	0.05mm	-3.5°	0seconds	100%	0.81mm
07:00	39%	0mm	0.01mm	9.9°	0seconds	100%	0.81mm
08:00	39%	0mm	0.03mm	23°	0seconds	87%	0.81mm
09:00	26%	0mm	0.14mm	37°	3600seconds	100%	0.06mm
10:00	13%	0mm	0.3mm	51°	3600seconds	100%	0.25mm
11:00	0%	0.01mm	0.13mm	65°	3600seconds	100%	0.5mm
12:00	13%	0mm	0.03mm	78°	3600seconds	100%	0.56mm
13:00	26%	0.01mm	0mm	83°	3600seconds	100%	0.56mm
14:00 ☾	39%	0mm	0mm	71°	3600seconds	100%	0.63mm
15:00 ☾	39%	0mm	0mm	57°	3600seconds	100%	0mm
16:00 ☾	39%	0mm	0mm	43°	3600seconds	100%	0mm
17:00 ☾	39%	0mm	0mm	29°	3600seconds	100%	0mm
18:00 ☾	58%	0mm	0mm	16°	3600seconds	100%	0mm
19:00 ☾	76%	0mm	0mm	2.5°	3600seconds	100%	0mm
20:00 ☾	95%	0mm	0.03mm	-11°	3600seconds	100%	0mm
21:00 ☾	90%	0mm	0.09mm	-23°	2400seconds	100%	0.08mm
22:00 ☾	86%	0mm	0.14mm	-35°	1200seconds	100%	0.17mm
23:00 ☾	82%	0mm	0.2mm	-44°	0seconds	100%	0.25mm
Sat, Aug 8 Sunrise 06:12 Sunset 19:12
24:00 ☾	85%	0.01mm	0.14mm	-51°	0seconds	100%	0.35mm
01:00 ☾	89%	0.03mm	0.07mm	-52°	0seconds	100%	0.46mm
02:00 ☾	93%	0.04mm	0.01mm	-48°	0seconds	100%	0.56mm
03:00 ☾	75%	0.03mm	0.01mm	-39°	1200seconds	100%	0.4mm
04:00 ☾	57%	0.02mm	0.01mm	-29°	2400seconds	100%	0.23mm
05:00 ☾	39%	0.01mm	0.01mm	-17°	3600seconds	100%	0.06mm
06:00 ☾	53%	0.007mm	0.007mm	-3.6°	3600seconds	79%	0.06mm
07:00	68%	0.003mm	0.003mm	9.8°	3600seconds	57%	0.06mm
08:00	82%	0mm	0mm	23°	3600seconds	36%	0.06mm
09:00	68%	0.003mm	0mm	37°	3600seconds	55%	0.04mm
10:00	53%	0.007mm	0mm	51°	3600seconds	74%	0.02mm

How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →

Forecast generated

Aug 5, 2026, 8:06 PM UTC

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