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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
0%
Sun Elevation-49.1° (Astronomical night)
Precipitation0.0mm
Rain0.0mm
Showers0.0mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu
Next opportunity
Very Good Chance of Rainbow
Hilo
Today · 16:00–18:00 · 2h window
Low confidence
37%
🌈Rainbow Probability65-75%
Sun Elevation: 34.0° (Daylight)
Precipitation: 1.1mm
Rain: 0.0mm
Showers: 0.0mm
rainbow weather icon
Excellent Chance of Rainbow (double)
Hilo
Tomorrow · 16:00–19:00
🌈Rainbow Probability:63.6-100%
Low
rainbow weather icon
Very Good Chance of Rainbow
Hilo
Fri, Mar 20 · 08:00–10:00
🌈Rainbow Probability:67.3-70%
Low
rainbow weather icon
Excellent Chance of Rainbow
Hilo
Sat, Mar 21 · 08:00–10:00
🌈Rainbow Probability:81.2-85%
Low
rainbow weather icon
Very Good Chance of Rainbow
Hilo
Sat, Mar 21 · 16:00–17:00
🌈Rainbow Probability:70%
Low
rainbow weather icon
Excellent Chance of Rainbow
Hilo
Sun, Mar 22 · 08:00–10:00
🌈Rainbow Probability:85-90%
Low
rainbow weather icon
Very Good Chance of Rainbow
Hilo
Sun, Mar 22 · 16:00–17:00
🌈Rainbow Probability:70%
Low
+3 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
5matching hours in the next 80 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Pacific/Honolulu
Rainbow Probability
≥ 60.0%
Visibility
≥ 8000.0m
Sat, Mar 14
18:0038%24135m
19:000%24135m
20:000%24134m
21:000%24135m
22:000%18597m
23:000%24135m
Sun, Mar 15
24:000%20133m
01:000%24134m
02:000%24134m
03:000%24135m
04:000%24135m
05:000%24135m
06:000%24134m
07:0024%24134m
08:0055%24134m
09:0045%24134m
10:000%24135m
11:000%15638m
12:000%11854m
13:000%22370m
14:000%8021m
15:000%22948m
16:0075%15810m
17:0065%24135m
18:0058%24135m
19:000%24134m
20:000%24135m
21:000%24134m
22:000%21266m
23:000%24135m
Mon, Mar 16
24:000%24135m
01:000%24134m
02:000%24134m
03:000%24134m
04:000%24135m
05:000%24134m
06:000%24135m
07:000%24135m
08:000%24134m
09:0045%24134m
10:000%24135m
11:000%24134m
12:000%24135m
13:000%24134m
14:000%24135m
15:000%24134m
16:0090%22704m
17:00100%22402m
18:0064%24069m
19:000%23298m
20:000%10501m
21:000%21654m
22:000%22702m
23:000%24134m
Tue, Mar 17
24:000%13461m
01:000%22950m
02:000%22549m
03:000%22470m
04:000%22786m
05:000%7027m
06:000%4849m
07:000%4941m
08:000%3880m
09:000%2752m
10:000%1625m
11:000%497m
12:000%888m
13:000%1278m
14:000%1669m
15:000%1666m
16:000%1663m
17:000%1660m
18:000%2066m
19:000%2471m
20:000%2877m
21:000%4038m
22:000%5199m
23:000%6361m
Wed, Mar 18
24:000%6974m
01:000%7587m
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
Sun, Mar 15 Sunrise 06:28 Sunset 18:29
03:00 ☾
93% 0mm 0mm -49° 0seconds 100% 0mm
04:00 ☾
88% 0mm 0.01mm -36° 0seconds 100% 0mm
05:00 ☾
82% 0mm 0.03mm -22° 0seconds 100% 0.06mm
06:00 ☾
85% 0mm 0.02mm -7.5° 0seconds 100% 0.06mm
07:00 ☾
88% 0mm 0.03mm 6.7° 0seconds 30% 0.13mm
08:00 ☾
91% 0mm 0mm 21° 0seconds 44% 0.13mm
09:00 ☾
79% 0mm 0mm 34° 3600seconds 100% 0mm
10:00 ☾
67% 0.05mm 0.01mm 48° 3600seconds 100% 0mm
11:00 ☾
56% 0.6mm 0.07mm 59° 3600seconds 100% 2.1mm
12:00 ☾
68% 0.82mm 0.06mm 67° 3600seconds 98% 4.1mm
13:00 ☾
79% 0.06mm 0.07mm 67° 3600seconds 88% 4.4mm
14:00 ☾
91% 1.4mm 0.86mm 59° 3600seconds 100% 4.9mm
15:00 ☾
92% 0.03mm 0.12mm 47° 0seconds 86% 0.88mm
16:00 ☾
93% 0mm 0mm 34° 0seconds 34% 1.1mm
17:00 ☾
95% 0mm 0mm 20° 3600seconds 6% 1.1mm
18:00 ☾
95% 0mm 0mm 6.4° 3600seconds 68% 1.1mm
19:00 ☾
96% 0.01mm 0.11mm -7.8° 3600seconds 15% 1.2mm
20:00 ☾
96% 0mm 0mm -22° 0seconds 7% 1.3mm
21:00 ☾
95% 0mm 0.04mm -36° 0seconds 34% 0.06mm
22:00 ☾
95% 0mm 0mm -49° 0seconds 14% 0.06mm
23:00 ☾
94% 0mm 0mm -62° 0seconds 28% 0.06mm
Mon, Mar 16 Sunrise 06:27 Sunset 18:29
24:00 ☾
96% 0mm 0mm -71° 0seconds 100% 0.13mm
01:00 ☾
98% 0mm 0mm -70° 0seconds 100% 0.25mm
02:00 ☾
100% 0mm 0mm -61° 0seconds 92% 0.25mm
03:00 ☾
100% 0mm 0mm -49° 0seconds 32% 0mm
04:00 ☾
100% 0mm 0mm -35° 0seconds 95% 0.06mm
05:00 ☾
100% 0mm 0mm -21° 0seconds 98% 0.06mm
06:00 ☾
100% 0mm 0mm -7.3° 0seconds 100% 0.13mm
07:00 ☾
100% 0mm 0mm 6.9° 0seconds 100% 0.19mm
08:00 ☾
100% 0mm 0mm 21° 0seconds 98% 0.19mm
09:00 ☾
100% 0mm 0.01mm 35° 3600seconds 100% 0mm
10:00 ☾
100% 0mm 0mm 48° 3600seconds 100% 0mm
11:00 ☾
100% 0mm 0mm 60° 3600seconds 11% 0mm
12:00 ☾
100% 0mm 0.17mm 68° 3600seconds 96% 0.13mm
13:00 ☾
100% 0mm 0.06mm 67° 3600seconds 99% 0.19mm
14:00 ☾
100% 0mm 0.06mm 59° 3600seconds 100% 0.25mm
15:00 ☾
99% 0mm 0.06mm 47° 3600seconds 79% 0.25mm
16:00 ☾
99% 0mm 0.39mm 34° 3600seconds 76% 0.5mm
17:00 ☾
98% 0.24mm 0.66mm 20° 3600seconds 68% 1.1mm
18:00 ☾
98% 0.06mm 0.18mm 6.4° 3600seconds 61% 1.5mm
19:00 ☾
99% 0.06mm 0.18mm -7.8° 3600seconds 96% 1.8mm
20:00 ☾
99% 0.61mm 0.56mm -22° 3600seconds 100% 2.4mm
21:00 ☾
93% 0.22mm 0.83mm -36° 0seconds 100% 1.1mm
22:00 ☾
87% 0.05mm 0.32mm -49° 0seconds 84% 1.8mm
23:00 ☾
80% 0mm 0.36mm -62° 0seconds 84% 2.1mm
Tue, Mar 17 Sunrise 06:26 Sunset 18:30
24:00 ☾
85% 0mm 0.44mm -70° 0seconds 85% 2.6mm
01:00 ☾
89% 0mm 0.01mm -70° 0seconds 84% 2.7mm
02:00 ☾
94% 0mm 0.17mm -61° 0seconds 99% 2.9mm
03:00 ☾
89% 0.01mm 0.15mm -49° 0seconds 88% 0.19mm
04:00 ☾
84% 0mm 0.14mm -35° 0seconds 82% 0.31mm
05:00 ☾
80% 0mm 0.43mm -21° 0seconds 83% 0.63mm
06:00 ☾
83% 0.01mm 1.1mm -7.1° 0seconds 90% 1.4mm
07:00 ☾
86% 0.02mm 0.61mm 7.1° 0seconds 98% 2.2mm
08:00 ☾
89% 0.04mm 0.73mm 21° 0seconds 100% 2.9mm
09:00 ☾
91% 0.11mm 1.2mm 35° 0seconds 100% 3.1mm
10:00 ☾
93% 0.19mm 1.7mm 48° 0seconds 100% 3.3mm
11:00 ☾
95% 0.26mm 2.2mm 60° 0seconds 100% 3.5mm
12:00 ☾
96% 0.96mm 1.6mm 68° 0seconds 100% 6mm
13:00 ☾
97% 1.7mm 1mm 68° 0seconds 100% 8.6mm
14:00 ☾
98% 2.4mm 0.46mm 59° 0seconds 100% 11mm
15:00 ☾
82% 1.9mm 0.39mm 47° 0seconds 100% 9.4mm
16:00 ☾
67% 1.4mm 0.33mm 34° 0seconds 100% 7.7mm
17:00 ☾
52% 0.93mm 0.26mm 20° 0seconds 100% 5.9mm
18:00 ☾
53% 0.71mm 0.18mm 6.5° 0seconds 100% 6.6mm
19:00 ☾
55% 0.5mm 0.1mm -7.7° 0seconds 100% 7.4mm
20:00 ☾
56% 0.28mm 0.02mm -22° 0seconds 100% 8.1mm
21:00 ☾
59% 0.2mm 0.03mm -36° 0seconds 99% 5.6mm
22:00 ☾
63% 0.13mm 0.03mm -49° 0seconds 99% 3.1mm
23:00 ☾
66% 0.05mm 0.04mm -61° 0seconds 99% 0.56mm
Wed, Mar 18 Sunrise 06:26 Sunset 18:30
24:00 ☾
72% 0.05mm 0.03mm -70° 0seconds 99% 0.65mm
01:00 ☾
78% 0.06mm 0.03mm -70° 0seconds 100% 0.73mm
02:00 ☾
84% 0.06mm 0.02mm -61° 0seconds 100% 0.81mm
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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