What conditions does Rainbow Chaser look for?

Rainbow Probability: ≥ 60.0%. Visibility: ≥ 8000.0m

How often do conditions match?

There are 14 upcoming opportunity windows in the next 10 days.

More Rainbow Chaser in Hawaii

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Rule Rainbow Chaser

Hilo - Rainbow Chaser - Hawaii

Hilo, Hawaii, United States

Sun breaking through rain — perfect rainbow conditions

Currently

Real-time conditions

Rainbow Probability

81%

Sun Elevation36.9° (Daylight)

Precipitation1.2mm

Rain0.0mm

Showers1.4mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Promising Chance of Rainbow

Hilo

Today · 17:00–18:00 · 1h window

Medium confidence

66%

🌈Rainbow Probability95%

Sun Elevation: 22.8° (Daylight)

Precipitation: 1.6mm

Rain: 0.0mm

Showers: 0.4mm

Possible Rainbow at Sunset

Hilo

Today · 18:00–19:00

🌈Rainbow Probability:70%

Medium

Possible Rainbow

Hilo

Tomorrow · 16:00–18:00

🌈Rainbow Probability:70.4-80%

Low

Tentative Chance of Rainbow at Sunset

Hilo

Tomorrow · 18:00–19:00

🌈Rainbow Probability:65.2%

Medium

Promising Chance of Rainbow

Hilo

Thu, Apr 30 · 07:00–09:00

🌈Rainbow Probability:64.5-85%

Low

Possible Rainbow

Hilo

Thu, Apr 30 · 16:00–18:00

🌈Rainbow Probability:70-80.2%

Low

Possible Rainbow

Hilo

Fri, May 1 · 08:00–09:00

🌈Rainbow Probability:70%

Medium

+7 more windows in the next 10 days

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks Hawaii's world-famous rainbow conditions. We analyze sun position, precipitation patterns, cloud breaks, and visibility to predict when and where rainbows are most likely to appear.

Hawaii sees more rainbows than almost anywhere else on Earth. The combination of consistent trade winds, abundant tropical showers, and reliable sunshine creates the perfect recipe. In Hawaiian culture, rainbows (ānuenue) hold deep spiritual significance—they're even on the state license plate.

What makes Hawaii special for rainbow photography:

Frequency - Trade wind showers and sunshine create multiple daily rainbow opportunities
Dramatic backdrops - Volcanic peaks, waterfalls, and tropical valleys frame the arcs
Double rainbows - Common in Hawaii due to intense tropical light
Accessibility - Rainbows appear frequently in easily-reached locations

Rainbows are most common in the morning and late afternoon when sun angle is optimal. The windward (east/north) sides of islands see more rain and therefore more rainbows. Look for conditions where sun breaks through behind you while rain falls ahead—our forecast helps identify these alignments. The Hana Highway on Maui and Hilo on the Big Island are particularly reliable rainbow zones.

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72-hour requirements breakdown

What passed or failed, hour by hour

12matching 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
Mon, Apr 27
16:00	91%	12307m
17:00	70%	5427m
18:00	70%	5637m
19:00	0%	7516m
20:00	0%	14160m
21:00	0%	6562m
22:00	0%	7492m
23:00	0%	7911m
Tue, Apr 28
24:00	0%	7337m
01:00	0%	6246m
02:00	0%	16099m
03:00	0%	16573m
04:00	0%	8721m
05:00	0%	14221m
06:00	0%	6784m
07:00	69%	6047m
08:00	75%	12499m
09:00	0%	8240m
10:00	0%	13167m
11:00	0%	23616m
12:00	0%	18417m
13:00	0%	12272m
14:00	0%	18923m
15:00	0%	14940m
16:00	81%	6297m
17:00	95%	15502m
18:00	70%	13224m
19:00	0%	14089m
20:00	0%	19094m
21:00	0%	15268m
22:00	0%	8231m
23:00	0%	5404m
Wed, Apr 29
24:00	0%	13661m
01:00	0%	22569m
02:00	0%	24135m
03:00	0%	24134m
04:00	0%	24135m
05:00	0%	24135m
06:00	0%	24134m
07:00	44%	24134m
08:00	55%	24134m
09:00	0%	24134m
10:00	0%	24135m
11:00	0%	24135m
12:00	0%	18431m
13:00	0%	24135m
14:00	0%	23209m
15:00	0%	12901m
16:00	70%	22927m
17:00	80%	22409m
18:00	65%	22548m
19:00	0%	24134m
20:00	0%	24134m
21:00	0%	23204m
22:00	0%	16500m
23:00	0%	22240m
Thu, Apr 30
24:00	0%	24135m
01:00	0%	24135m
02:00	0%	24135m
03:00	0%	24135m
04:00	0%	24134m
05:00	0%	22711m
06:00	0%	8917m
07:00	65%	17081m
08:00	85%	11174m
09:00	0%	6156m
10:00	0%	13515m
11:00	0%	10898m
12:00	0%	17125m
13:00	0%	17054m
14:00	0%	24134m
15:00	0%	24134m
16:00	80%	23302m
17:00	70%	24135m
18:00	35%	24134m
19:00	0%	19319m
20:00	0%	23056m
21:00	0%	23130m
22:00	0%	19756m
23:00	0%	18795m
Fri, May 1
24:00	0%	11813m
01:00	0%	5125m
02:00	0%	16629m
03:00	0%	19131m
04:00	0%	21633m
05:00	0%	24135m
06:00	0%	24135m
07:00	60%	24135m
08:00	70%	24135m
09:00	0%	20359m
10:00	0%	16584m
11:00	0%	12808m
12:00	0%	10736m
13:00	0%	8664m
14:00	0%	6592m

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
Tue, Apr 28 Sunrise 05:52 Sunset 18:42
16:00 ☾	99%	0mm	1.4mm	37°	3600seconds	28%	1.2mm
17:00 ☾	99%	0mm	0.4mm	23°	3600seconds	55%	1.6mm
18:00 ☾	99%	0mm	0.45mm	9°	3600seconds	37%	2.1mm
19:00 ☾	99%	0mm	1mm	-4.7°	3600seconds	33%	2.6mm
20:00 ☾	100%	0mm	0.38mm	-18°	3600seconds	10%	3.2mm
21:00 ☾	79%	0mm	0.84mm	-31°	0seconds	30%	0.63mm
22:00 ☾	59%	0mm	1.2mm	-42°	0seconds	54%	1.6mm
23:00 ☾	39%	0mm	1.4mm	-51°	0seconds	29%	2.5mm
Wed, Apr 29 Sunrise 05:52 Sunset 18:42
24:00 ☾	53%	0mm	0.61mm	-55°	0seconds	24%	3.3mm
01:00 ☾	67%	0mm	0.13mm	-54°	0seconds	31%	3.6mm
02:00 ☾	82%	0mm	0.03mm	-47°	0seconds	20%	3.7mm
03:00 ☾	82%	0mm	0.03mm	-37°	0seconds	18%	0mm
04:00 ☾	83%	0mm	0.01mm	-25°	0seconds	5%	0.06mm
05:00 ☾	83%	0mm	0.03mm	-13°	0seconds	7%	0.06mm
06:00	86%	0mm	0.02mm	1.2°	0seconds	14%	0.13mm
07:00	89%	0mm	0.01mm	15°	0seconds	12%	0.13mm
08:00	92%	0mm	0.05mm	29°	0seconds	13%	0.19mm
09:00	89%	0mm	0.05mm	43°	3600seconds	20%	0.06mm
10:00	86%	0mm	0.09mm	57°	3600seconds	7%	0.13mm
11:00	84%	0mm	0.15mm	71°	3600seconds	2%	0.25mm
12:00	87%	0mm	0.55mm	83°	3600seconds	1%	0.31mm
13:00	90%	0mm	0.11mm	79°	3600seconds	3%	0.5mm
14:00 ☾	93%	0mm	0.41mm	65°	3600seconds	11%	0.69mm
15:00 ☾	88%	0mm	0.6mm	51°	3600seconds	21%	0.19mm
16:00 ☾	83%	0mm	0.14mm	37°	3600seconds	12%	0.38mm
17:00 ☾	79%	0mm	0.13mm	23°	3600seconds	15%	0.63mm
18:00 ☾	82%	0mm	0.12mm	9.1°	3600seconds	22%	0.81mm
19:00 ☾	84%	0mm	0.05mm	-4.6°	3600seconds	1%	0.88mm
20:00 ☾	87%	0mm	0.02mm	-18°	3600seconds	5%	0.94mm
21:00 ☾	86%	0mm	0.17mm	-30°	0seconds	39%	0.06mm
22:00 ☾	84%	0mm	0.36mm	-42°	0seconds	54%	0.44mm
23:00 ☾	82%	0mm	0.18mm	-51°	0seconds	58%	0.75mm
Thu, Apr 30 Sunrise 05:52 Sunset 18:43
24:00 ☾	85%	0mm	0.03mm	-55°	0seconds	46%	0.81mm
01:00 ☾	88%	0.01mm	0mm	-54°	0seconds	0%	0.88mm
02:00 ☾	91%	0mm	0.02mm	-47°	0seconds	7%	0.88mm
03:00 ☾	83%	0mm	0.05mm	-37°	0seconds	26%	0.06mm
04:00 ☾	76%	0mm	0.05mm	-25°	0seconds	19%	0.13mm
05:00 ☾	69%	0mm	0.43mm	-12°	0seconds	21%	0.31mm
06:00	66%	0mm	1.1mm	1.4°	0seconds	7%	1.1mm
07:00	64%	0mm	0.74mm	15°	0seconds	9%	2.1mm
08:00	61%	0mm	1.4mm	29°	0seconds	16%	3.4mm
09:00	57%	0mm	1.5mm	43°	3600seconds	6%	1.4mm
10:00	53%	0mm	1.1mm	57°	3600seconds	51%	2.8mm
11:00	49%	0mm	0.8mm	71°	3600seconds	56%	3.8mm
12:00	61%	0mm	0.44mm	84°	3600seconds	48%	4.4mm
13:00	72%	0mm	0.4mm	79°	3600seconds	57%	4.7mm
14:00 ☾	84%	0.01mm	0.09mm	65°	3600seconds	37%	4.9mm
15:00 ☾	86%	0mm	0.12mm	51°	3600seconds	26%	0.13mm
16:00 ☾	88%	0mm	0.14mm	37°	3600seconds	25%	0.25mm
17:00 ☾	90%	0mm	0.05mm	23°	3600seconds	16%	0.31mm
18:00 ☾	91%	0mm	0.01mm	9.1°	3600seconds	2%	0.38mm
19:00 ☾	92%	0mm	0.31mm	-4.5°	3600seconds	23%	0.5mm
20:00 ☾	94%	0mm	0.15mm	-18°	3600seconds	38%	0.81mm
21:00 ☾	85%	0mm	0.18mm	-30°	0seconds	37%	0.19mm
22:00 ☾	77%	0mm	0.3mm	-41°	0seconds	28%	0.44mm
23:00 ☾	68%	0mm	0.48mm	-50°	0seconds	25%	0.81mm
Fri, May 1 Sunrise 05:51 Sunset 18:43
24:00 ☾	70%	0mm	1mm	-55°	0seconds	31%	1.4mm
01:00 ☾	72%	0mm	1.8mm	-54°	0seconds	34%	2.2mm
02:00 ☾	75%	0mm	0.34mm	-47°	0seconds	45%	2.8mm
03:00 ☾	70%	0mm	0.26mm	-37°	1200seconds	34%	2mm
04:00 ☾	66%	0mm	0.17mm	-25°	2400seconds	22%	1.1mm
05:00 ☾	62%	0mm	0.09mm	-12°	3600seconds	10%	0.25mm
06:00	65%	0.01mm	0.06mm	1.5°	3600seconds	12%	0.29mm
07:00	68%	0.02mm	0.04mm	15°	3600seconds	13%	0.33mm
08:00	71%	0.03mm	0.01mm	29°	3600seconds	14%	0.38mm
09:00	68%	0.02mm	0.11mm	43°	3600seconds	26%	0.38mm
10:00	65%	0.01mm	0.21mm	57°	3600seconds	38%	0.38mm
11:00	62%	0mm	0.31mm	71°	3600seconds	50%	0.38mm
12:00	71%	0mm	0.56mm	84°	3600seconds	45%	0.85mm
13:00	79%	0mm	0.8mm	79°	3600seconds	40%	1.3mm
14:00 ☾	87%	0mm	1.1mm	65°	3600seconds	36%	1.8mm
15:00 ☾	88%	0mm	0.97mm	51°	2400seconds	32%	2mm

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

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