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 Elevation44.6° (Daylight)

Local Precipitation0.3mm

Local Rain0.0mm

Local Showers0.4mm

Local Precipitation Chance88%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Promising Chance of Rainbow

Waimea Canyon

Today · 17:00–18:00 · 1h window

Medium confidence

67%

🌈Rainbow Probability95%

Sun Elevation: 30.9° (Daylight)

Local Precipitation: 0.6mm

Local Rain: 0.0mm

Local Showers: 0.2mm

Possible Rainbow at Sunset

Waimea Canyon

Today · 18:00–19:00

🌈Rainbow Probability:70%

Medium

Tentative Chance of Rainbow

Waimea Canyon

Tomorrow · 08:00–09:00

🌈Rainbow Probability:60%

Medium

Possible Rainbow at Sunset

Waimea Canyon

Tomorrow · 18:00–19:00

🌈Rainbow Probability:80%

Medium

Possible Rainbow

Waimea Canyon

Fri, Jul 17 · 08:00–09:00

🌈Rainbow Probability:70%

Medium

Possible Rainbow

Waimea Canyon

Sat, Jul 18 · 08:00–09:00

🌈Rainbow Probability:70%

Medium

Possible Rainbow

Waimea Canyon

Sat, Jul 18 · 17:00–18:00

🌈Rainbow Probability:70%

Medium

+9 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

140

recorded matching windows · 58% average confidence

Last 365 days

252

recorded matching windows · 58% average confidence

Most frequent recorded start hour

17:00 local time, shared by 56 of 252 matches recorded in the last 365 days.

Most represented month

May, with 54 of 252 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

9matching 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, Jul 14
15:00	0%	24134m
16:00	0%	24134m
17:00	95%	19537m
18:00	60%	24134m
19:00	0%	24135m
20:00	0%	23142m
21:00	0%	24134m
22:00	0%	24135m
23:00	0%	24134m
Wed, Jul 15
24:00	0%	24135m
01:00	0%	24135m
02:00	0%	24135m
03:00	0%	24135m
04:00	0%	23572m
05:00	0%	24135m
06:00	0%	20722m
07:00	41%	23897m
08:00	80%	20755m
09:00	40%	24135m
10:00	0%	24134m
11:00	0%	24134m
12:00	0%	24135m
13:00	0%	24135m
14:00	0%	22097m
15:00	0%	24135m
16:00	0%	18772m
17:00	95%	19835m
18:00	70%	24135m
19:00	0%	20080m
20:00	0%	20069m
21:00	0%	23478m
22:00	0%	19391m
23:00	0%	18890m
Thu, Jul 16
24:00	0%	19203m
01:00	0%	18510m
02:00	0%	24135m
03:00	0%	24134m
04:00	0%	23764m
05:00	0%	23141m
06:00	0%	22656m
07:00	41%	24135m
08:00	60%	24134m
09:00	0%	24134m
10:00	0%	24135m
11:00	0%	24134m
12:00	0%	24135m
13:00	0%	24135m
14:00	0%	24134m
15:00	0%	24135m
16:00	0%	24134m
17:00	57%	24135m
18:00	80%	20410m
19:00	0%	20232m
20:00	0%	20730m
21:00	0%	24134m
22:00	0%	24134m
23:00	0%	24135m
Fri, Jul 17
24:00	0%	24134m
01:00	0%	24135m
02:00	0%	24135m
03:00	0%	24135m
04:00	0%	24135m
05:00	0%	24135m
06:00	0%	24134m
07:00	0%	24134m
08:00	70%	24134m
09:00	47%	24135m
10:00	0%	24135m
11:00	0%	24134m
12:00	0%	24135m
13:00	0%	24134m
14:00	0%	24134m
15:00	0%	24134m
16:00	0%	24134m
17:00	55%	24135m
18:00	55%	24134m
19:00	0%	24134m
20:00	0%	24134m
21:00	0%	24134m
22:00	0%	24135m
23:00	0%	24135m
Sat, Jul 18
24:00	0%	24135m
01:00	0%	24135m
02:00	0%	24135m
03:00	0%	24135m
04:00	0%	24135m
05:00	0%	24135m
06:00	0%	24135m
07:00	51%	24135m
08:00	70%	24135m
09:00	54%	24121m
10:00	0%	24108m
11:00	0%	24094m
12:00	0%	24108m
13:00	0%	24121m

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, Jul 15 Sunrise 06:03 Sunset 19:23
16:00 ☾	88%	0mm	0.42mm	45°	3600seconds	4%	0.31mm
17:00 ☾	82%	0mm	0.21mm	31°	3600seconds	36%	0.56mm
18:00 ☾	87%	0mm	0.04mm	17°	3600seconds	13%	0.69mm
19:00 ☾	92%	0mm	0.2mm	4.5°	3600seconds	6%	0.81mm
20:00 ☾	98%	0mm	0.24mm	-8.4°	3600seconds	5%	1mm
21:00 ☾	78%	0mm	0.21mm	-20°	0seconds	4%	0.25mm
22:00 ☾	59%	0mm	0.41mm	-31°	0seconds	4%	0.56mm
23:00 ☾	39%	0mm	0.43mm	-40°	0seconds	18%	1mm
Thu, Jul 16 Sunrise 06:03 Sunset 19:23
24:00 ☾	53%	0mm	0.54mm	-45°	0seconds	2%	1.6mm
01:00 ☾	67%	0mm	0.54mm	-47°	0seconds	40%	2.1mm
02:00 ☾	82%	0mm	0.06mm	-43°	0seconds	50%	2.4mm
03:00 ☾	68%	0mm	0.06mm	-35°	0seconds	38%	0.06mm
04:00 ☾	54%	0mm	0.07mm	-25°	0seconds	24%	0.13mm
05:00 ☾	40%	0mm	0.11mm	-14°	0seconds	8%	0.19mm
06:00 ☾	45%	0mm	0.1mm	-1.4°	0seconds	11%	0.31mm
07:00	51%	0mm	0.07mm	11°	0seconds	4%	0.44mm
08:00	56%	0mm	0.07mm	25°	0seconds	6%	0.56mm
09:00	56%	0mm	0.06mm	38°	3600seconds	6%	0.06mm
10:00	55%	0mm	0.03mm	52°	3600seconds	7%	0.13mm
11:00	55%	0mm	0.03mm	66°	3600seconds	3%	0.13mm
12:00	68%	0mm	0mm	80°	3600seconds	85%	0.19mm
13:00	82%	0mm	0mm	86°	3600seconds	100%	0.19mm
14:00 ☾	95%	0mm	0.01mm	72°	3600seconds	24%	0.19mm
15:00 ☾	95%	0mm	0.04mm	58°	3600seconds	94%	0mm
16:00 ☾	95%	0mm	0.04mm	45°	3600seconds	62%	0.06mm
17:00 ☾	95%	0mm	0.06mm	31°	3600seconds	6%	0.13mm
18:00 ☾	95%	0mm	0.19mm	17°	3600seconds	88%	0.25mm
19:00 ☾	95%	0mm	0.18mm	4.4°	3600seconds	49%	0.38mm
20:00 ☾	95%	0mm	0.09mm	-8.4°	3600seconds	7%	0.56mm
21:00 ☾	90%	0mm	0.11mm	-20°	0seconds	48%	0.13mm
22:00 ☾	85%	0mm	0.01mm	-31°	0seconds	18%	0.19mm
23:00 ☾	80%	0mm	0.01mm	-40°	0seconds	35%	0.19mm
Fri, Jul 17 Sunrise 06:04 Sunset 19:23
24:00 ☾	84%	0mm	0.01mm	-46°	0seconds	84%	0.25mm
01:00 ☾	88%	0mm	0.02mm	-47°	0seconds	97%	0.25mm
02:00 ☾	93%	0mm	0.04mm	-43°	0seconds	76%	0.31mm
03:00 ☾	75%	0mm	0.03mm	-36°	0seconds	100%	0.06mm
04:00 ☾	57%	0.03mm	0.09mm	-26°	0seconds	100%	0.13mm
05:00 ☾	39%	0.04mm	0.02mm	-14°	0seconds	100%	0.19mm
06:00 ☾	53%	0.01mm	0.04mm	-1.5°	0seconds	100%	0.25mm
07:00	68%	0mm	0.03mm	11°	0seconds	97%	0.25mm
08:00	82%	0.01mm	0.03mm	25°	0seconds	86%	0.31mm
09:00	68%	0mm	0.04mm	38°	3600seconds	84%	0.06mm
10:00	55%	0mm	0.05mm	52°	3600seconds	45%	0.06mm
11:00	41%	0mm	0.05mm	66°	3600seconds	27%	0.13mm
12:00	54%	0mm	0.05mm	80°	3600seconds	100%	0.19mm
13:00	68%	0mm	0.04mm	86°	3600seconds	38%	0.19mm
14:00 ☾	82%	0mm	0.02mm	72°	3600seconds	4%	0.25mm
15:00 ☾	82%	0mm	0.02mm	58°	3600seconds	5%	0mm
16:00 ☾	82%	0mm	0.02mm	45°	3600seconds	100%	0mm
17:00 ☾	82%	0mm	0.03mm	31°	3600seconds	86%	0.06mm
18:00 ☾	85%	0mm	0.03mm	17°	3600seconds	8%	0.06mm
19:00 ☾	89%	0mm	0.07mm	4.4°	3600seconds	99%	0.13mm
20:00 ☾	93%	0mm	0.07mm	-8.5°	3600seconds	87%	0.19mm
21:00 ☾	89%	0mm	0.09mm	-21°	2400seconds	74%	0.21mm
22:00 ☾	86%	0mm	0.1mm	-31°	1200seconds	62%	0.23mm
23:00 ☾	82%	0mm	0.12mm	-40°	0seconds	49%	0.25mm
Sat, Jul 18 Sunrise 06:04 Sunset 19:22
24:00 ☾	82%	0.003mm	0.08mm	-46°	0seconds	53%	0.29mm
01:00 ☾	82%	0.007mm	0.04mm	-47°	0seconds	57%	0.33mm
02:00 ☾	82%	0.01mm	0mm	-43°	0seconds	62%	0.38mm
03:00 ☾	67%	0.01mm	0.01mm	-36°	1200seconds	47%	0.31mm
04:00 ☾	53%	0.01mm	0.03mm	-26°	2400seconds	32%	0.25mm
05:00 ☾	39%	0.01mm	0.04mm	-14°	3600seconds	17%	0.19mm
06:00 ☾	47%	0.02mm	0.04mm	-1.6°	3600seconds	17%	0.25mm
07:00	56%	0.02mm	0.03mm	11°	3600seconds	18%	0.31mm
08:00	64%	0.03mm	0.03mm	25°	3600seconds	18%	0.38mm
09:00	70%	0.03mm	0.02mm	38°	3600seconds	19%	0.31mm
10:00	76%	0.02mm	0.02mm	52°	3600seconds	19%	0.25mm
11:00	82%	0.02mm	0.01mm	66°	3600seconds	20%	0.19mm
12:00	86%	0.02mm	0.02mm	80°	3600seconds	20%	0.23mm
13:00	90%	0.03mm	0.03mm	86°	3600seconds	19%	0.27mm
14:00 ☾	95%	0.03mm	0.04mm	72°	3600seconds	19%	0.31mm
15:00 ☾	90%	0.02mm	0.04mm	58°	2400seconds	23%	0.29mm

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

Jul 16, 2026, 1:02 AM UTC

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