What conditions does Rainbow Chaser look for?

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

How often do conditions match?

There are 15 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

Sun Elevation-36.8° (Astronomical night)

Precipitation0.2mm

Rain0.0mm

Showers0.4mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Very Good Chance of Rainbow

Hilo

Tomorrow · 08:00–10:00 · 2h window

Low confidence

38%

🌈Rainbow Probability70%

Sun Elevation: 18.5° (Daylight)

Precipitation: 0.9mm

Rain: 0.0mm

Showers: 0.1mm

Excellent Chance of Rainbow (double)

Hilo

Fri, Mar 6 · 08:00–10:00

🌈Rainbow Probability:70-90%

Low

Excellent Chance of Rainbow (double)

Hilo

Fri, Mar 6 · 16:00–19:00

🌈Rainbow Probability:61.8-95%

Low

Very Good Chance of Rainbow

Hilo

Sat, Mar 7 · 08:00–10:00

🌈Rainbow Probability:70-80%

Low

Excellent Chance of Rainbow (double)

Hilo

Sat, Mar 7 · 16:00–18:00

🌈Rainbow Probability:80-90%

Low

Good Chance of Rainbow

Hilo

Sun, Mar 8 · 08:00–10:00

🌈Rainbow Probability:60%

Low

Very Good Chance of Rainbow

Hilo

Sun, Mar 8 · 16:00–18:00

🌈Rainbow Probability:80%

Low

+8 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

15matching 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, Mar 3
21:00	0%	18748m
22:00	0%	12522m
23:00	0%	19915m
Wed, Mar 4
24:00	0%	20637m
01:00	0%	14529m
02:00	0%	12949m
03:00	0%	10540m
04:00	0%	14123m
05:00	0%	20366m
06:00	0%	15499m
07:00	0%	21440m
08:00	80%	20428m
09:00	70%	21713m
10:00	0%	24134m
11:00	0%	24134m
12:00	0%	24135m
13:00	0%	24135m
14:00	0%	24134m
15:00	0%	24135m
16:00	70%	22202m
17:00	70%	20530m
18:00	36%	20942m
19:00	0%	13124m
20:00	0%	16591m
21:00	0%	14614m
22:00	0%	21085m
23:00	0%	16432m
Thu, Mar 5
24:00	0%	22762m
01:00	0%	22455m
02:00	0%	18171m
03:00	0%	20197m
04:00	0%	24135m
05:00	0%	22986m
06:00	0%	21722m
07:00	0%	21250m
08:00	70%	24135m
09:00	70%	24134m
10:00	0%	24134m
11:00	0%	24135m
12:00	0%	24135m
13:00	0%	24135m
14:00	0%	24135m
15:00	0%	24135m
16:00	45%	24135m
17:00	45%	24134m
18:00	37%	23243m
19:00	0%	23241m
20:00	0%	24118m
21:00	0%	23368m
22:00	0%	21134m
23:00	0%	22199m
Fri, Mar 6
24:00	0%	19734m
01:00	0%	18945m
02:00	0%	23718m
03:00	0%	13678m
04:00	0%	19043m
05:00	0%	18735m
06:00	0%	19775m
07:00	0%	12847m
08:00	70%	20645m
09:00	90%	20717m
10:00	0%	12500m
11:00	0%	19466m
12:00	0%	19938m
13:00	0%	24135m
14:00	0%	24135m
15:00	0%	24135m
16:00	80%	23731m
17:00	95%	20395m
18:00	62%	19065m
19:00	0%	9618m
20:00	0%	9586m
21:00	0%	8752m
22:00	0%	9029m
23:00	0%	8121m
Sat, Mar 7
24:00	0%	18004m
01:00	0%	8606m
02:00	0%	8352m
03:00	0%	13541m
04:00	0%	18731m
05:00	0%	23920m
06:00	0%	20230m
07:00	35%	16539m
08:00	70%	12848m
09:00	80%	13069m
10:00	0%	13290m
11:00	0%	13510m
12:00	0%	14576m
13:00	0%	15641m
14:00	0%	16706m
15:00	0%	16593m
16:00	90%	16481m
17:00	80%	16368m
18:00	47%	17448m
19:00	0%	18527m

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, Mar 4 Sunrise 06:36 Sunset 18:26
21:00 ☾	100%	0mm	0.4mm	-37°	0seconds	57%	0.25mm
22:00 ☾	100%	0mm	0.28mm	-51°	0seconds	34%	0.56mm
23:00 ☾	100%	0mm	0.29mm	-64°	0seconds	61%	0.88mm
Thu, Mar 5 Sunrise 06:36 Sunset 18:26
24:00 ☾	100%	0mm	0.18mm	-74°	0seconds	68%	1.1mm
01:00 ☾	100%	0mm	0.21mm	-75°	0seconds	76%	1.3mm
02:00 ☾	100%	0.01mm	0.24mm	-65°	0seconds	75%	1.6mm
03:00 ☾	96%	0.01mm	0.16mm	-51°	0seconds	65%	0.19mm
04:00 ☾	92%	0mm	0.05mm	-38°	0seconds	62%	0.31mm
05:00 ☾	88%	0mm	0.1mm	-24°	0seconds	52%	0.44mm
06:00 ☾	90%	0mm	0.21mm	-9.4°	0seconds	86%	0.56mm
07:00 ☾	93%	0mm	0.2mm	4.8°	0seconds	88%	0.81mm
08:00 ☾	95%	0.02mm	0.1mm	19°	0seconds	69%	0.94mm
09:00 ☾	85%	0mm	0.06mm	32°	3600seconds	42%	0.06mm
10:00 ☾	75%	0mm	0.06mm	45°	3600seconds	1%	0.13mm
11:00 ☾	65%	0mm	0.01mm	56°	3600seconds	0%	0.13mm
12:00 ☾	76%	0mm	0.01mm	63°	3600seconds	1%	0.13mm
13:00 ☾	87%	0mm	0.03mm	64°	3600seconds	1%	0.19mm
14:00 ☾	98%	0mm	0.02mm	57°	3600seconds	6%	0.19mm
15:00 ☾	98%	0mm	0.03mm	46°	3600seconds	7%	0mm
16:00 ☾	99%	0mm	0.04mm	33°	3600seconds	9%	0.06mm
17:00 ☾	99%	0mm	0.06mm	19°	3600seconds	10%	0.13mm
18:00 ☾	100%	0mm	0.16mm	5.6°	3600seconds	2%	0.19mm
19:00 ☾	100%	0mm	0.12mm	-8.5°	3600seconds	7%	0.31mm
20:00 ☾	100%	0mm	0.16mm	-23°	3600seconds	5%	0.5mm
21:00 ☾	100%	0mm	0.11mm	-37°	0seconds	19%	0.13mm
22:00 ☾	100%	0mm	0.16mm	-51°	0seconds	32%	0.25mm
23:00 ☾	100%	0mm	0.13mm	-64°	0seconds	29%	0.44mm
Fri, Mar 6 Sunrise 06:36 Sunset 18:26
24:00 ☾	100%	0mm	0.21mm	-74°	0seconds	62%	0.69mm
01:00 ☾	100%	0mm	0.38mm	-74°	0seconds	98%	0.88mm
02:00 ☾	100%	0.01mm	0.26mm	-64°	0seconds	91%	1.1mm
03:00 ☾	100%	0.01mm	0.64mm	-51°	0seconds	82%	0.38mm
04:00 ☾	100%	0mm	0.41mm	-37°	0seconds	79%	0.88mm
05:00 ☾	100%	0mm	0.43mm	-23°	0seconds	39%	1.3mm
06:00 ☾	100%	0mm	0.31mm	-9.2°	0seconds	47%	1.6mm
07:00 ☾	100%	0mm	0.42mm	5°	0seconds	36%	2.1mm
08:00 ☾	100%	0mm	0.34mm	19°	0seconds	94%	2.4mm
09:00 ☾	100%	0mm	0.35mm	32°	3600seconds	74%	0.38mm
10:00 ☾	100%	0mm	0.4mm	45°	3600seconds	36%	0.69mm
11:00 ☾	99%	0mm	0.38mm	56°	3600seconds	48%	1.1mm
12:00 ☾	100%	0mm	0.29mm	64°	3600seconds	39%	1.3mm
13:00 ☾	100%	0mm	0.07mm	64°	3600seconds	42%	1.5mm
14:00 ☾	100%	0mm	0.06mm	57°	3600seconds	100%	1.6mm
15:00 ☾	100%	0mm	0.05mm	46°	3600seconds	100%	0.06mm
16:00 ☾	100%	0mm	0.18mm	33°	3600seconds	86%	0.19mm
17:00 ☾	99%	0mm	0.3mm	19°	3600seconds	36%	0.44mm
18:00 ☾	100%	0mm	0.42mm	5.7°	3600seconds	41%	0.81mm
19:00 ☾	100%	0mm	0.65mm	-8.4°	3600seconds	37%	1.3mm
20:00 ☾	100%	0mm	0.71mm	-23°	3600seconds	56%	1.9mm
21:00 ☾	99%	0mm	0.9mm	-37°	0seconds	9%	0.75mm
22:00 ☾	99%	0mm	0.85mm	-50°	0seconds	25%	1.6mm
23:00 ☾	99%	0mm	1mm	-63°	0seconds	51%	2.4mm
Sat, Mar 7 Sunrise 06:35 Sunset 18:27
24:00 ☾	99%	0mm	0.8mm	-74°	0seconds	45%	3.3mm
01:00 ☾	99%	0mm	0.88mm	-74°	0seconds	51%	4.1mm
02:00 ☾	100%	0mm	0.82mm	-64°	0seconds	42%	4.8mm
03:00 ☾	100%	0.01mm	0.6mm	-51°	1200seconds	60%	3.4mm
04:00 ☾	99%	0.03mm	0.37mm	-37°	2400seconds	78%	2.1mm
05:00 ☾	99%	0.04mm	0.15mm	-23°	3600seconds	96%	0.75mm
06:00 ☾	99%	0.07mm	0.14mm	-9°	3600seconds	95%	1mm
07:00 ☾	100%	0.1mm	0.12mm	5.2°	3600seconds	95%	1.3mm
08:00 ☾	100%	0.13mm	0.11mm	19°	3600seconds	94%	1.5mm
09:00 ☾	97%	0.09mm	0.15mm	32°	3600seconds	83%	1.2mm
10:00 ☾	95%	0.04mm	0.18mm	45°	3600seconds	71%	0.83mm
11:00 ☾	93%	0mm	0.22mm	57°	3600seconds	60%	0.5mm
12:00 ☾	95%	0.03mm	0.2mm	64°	3600seconds	68%	0.71mm
13:00 ☾	97%	0.05mm	0.18mm	64°	3600seconds	76%	0.92mm
14:00 ☾	99%	0.08mm	0.16mm	57°	3600seconds	84%	1.1mm
15:00 ☾	99%	0.06mm	0.15mm	46°	2400seconds	79%	0.96mm
16:00 ☾	98%	0.05mm	0.15mm	33°	1200seconds	74%	0.79mm
17:00 ☾	98%	0.03mm	0.14mm	20°	0seconds	70%	0.63mm
18:00 ☾	98%	0.05mm	0.12mm	5.8°	0seconds	66%	0.81mm
19:00 ☾	99%	0.08mm	0.11mm	-8.4°	0seconds	63%	1mm
20:00 ☾	100%	0.1mm	0.09mm	-23°	0seconds	59%	1.2mm

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

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