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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-21.4° (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
Tentative Chance of Rainbow at Sunset
Hilo
Today · 18:00–19:00 · 1h window
Medium confidence
49%
🌈Rainbow Probability63.7%
Sun Elevation: 12.5° (Daylight)
Precipitation: 0.4mm
Rain: 0.0mm
Showers: 0.2mm
rainbow weather icon
Tentative Chance of Rainbow
Hilo
Tomorrow · 07:00–09:00
🌈Rainbow Probability:60%
Low
rainbow weather icon
Tentative Chance of Rainbow
Hilo
Sat, Jun 20 · 08:00–09:00
🌈Rainbow Probability:65%
Low
rainbow weather icon
Possible Rainbow
Hilo
Sun, Jun 21 · 17:00–18:00
🌈Rainbow Probability:70%
Low
rainbow weather icon
Promising Chance of Rainbow
Hilo
Tue, Jun 23 · 07:00–09:00
🌈Rainbow Probability:85-95%
Low
rainbow weather icon
Possible Rainbow
Hilo
Tue, Jun 23 · 16:00–18:00
🌈Rainbow Probability:71.7-80%
Low
rainbow weather icon
Tentative Chance of Rainbow at Sunset
Hilo
Tue, Jun 23 · 18:00–19:00
🌈Rainbow Probability:64.4%
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
3matching 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, Jun 16
04:000%24134m
05:000%24135m
06:000%24135m
07:000%24134m
08:000%24135m
09:000%24135m
10:000%24134m
11:000%24134m
12:000%24135m
13:000%24134m
14:000%24135m
15:000%24135m
16:0023%24134m
17:0045%24134m
18:0029%24134m
19:000%24134m
20:000%24134m
21:000%24134m
22:000%24134m
23:000%24134m
Wed, Jun 17
24:000%24134m
01:000%24135m
02:000%24135m
03:000%24134m
04:000%21841m
05:000%18212m
06:000%7152m
07:000%5053m
08:000%2616m
09:000%3351m
10:000%20451m
11:000%24134m
12:000%24135m
13:000%24134m
14:000%24135m
15:000%24135m
16:0043%24135m
17:0055%24135m
18:0064%21217m
19:000%24135m
20:000%19934m
21:000%24135m
22:000%24134m
23:000%24134m
Thu, Jun 18
24:000%24135m
01:000%24134m
02:000%24135m
03:000%23293m
04:000%24135m
05:000%24135m
06:000%24135m
07:0060%24135m
08:0060%24134m
09:000%24135m
10:000%24135m
11:000%24135m
12:000%24135m
13:000%24134m
14:000%24135m
15:000%24135m
16:0023%24134m
17:000%24135m
18:000%24135m
19:000%24135m
20:000%24135m
21:000%24134m
22:000%24135m
23:000%24134m
Fri, Jun 19
24:000%24134m
01:000%24134m
02:000%24134m
03:000%24135m
04:000%24135m
05:000%24135m
06:000%24134m
07:000%24135m
08:000%24134m
09:000%24134m
10:000%24135m
11:000%24135m
12:000%24135m
13:000%24135m
14:000%24135m
15:000%24135m
16:0043%24135m
17:0055%24135m
18:0039%24135m
19:000%24135m
20:000%24135m
21:000%24135m
22:000%24135m
23:000%24135m
Sat, Jun 20
24:000%24135m
01:000%24135m
02:000%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, Jun 17 Sunrise 05:41 Sunset 19:00
04:00 ☾
91% 0mm 0mm -21° 0seconds 65% 0mm
05:00 ☾
90% 0mm 0.02mm -9.5° 0seconds 76% 0mm
06:00
93% 0.07mm 0.21mm 3.3° 0seconds 99% 0.13mm
07:00
96% 0.14mm 0.1mm 16° 0seconds 100% 0.5mm
08:00
99% 0.04mm 0.01mm 30° 0seconds 98% 0.63mm
09:00
92% 0mm 0.01mm 43° 3600seconds 64% 0.06mm
10:00
86% 0mm 0mm 57° 3600seconds 62% 0.06mm
11:00
79% 0mm 0.1mm 71° 3600seconds 27% 0.13mm
12:00
83% 0mm 0.07mm 84° 3600seconds 7% 0.19mm
13:00
87% 0mm 0.11mm 80° 3600seconds 7% 0.31mm
14:00 ☾
91% 0mm 0.05mm 67° 3600seconds 6% 0.38mm
15:00 ☾
74% 0mm 0.02mm 53° 3600seconds 5% 0mm
16:00 ☾
58% 0mm 0.07mm 39° 3600seconds 4% 0.06mm
17:00 ☾
42% 0mm 0.01mm 26° 3600seconds 1% 0.13mm
18:00 ☾
49% 0mm 0.26mm 12° 3600seconds 1% 0.13mm
19:00 ☾
56% 0mm 0.06mm -0.05° 3600seconds 1% 0.25mm
20:00 ☾
64% 0mm 0mm -13° 3600seconds 1% 0.38mm
21:00 ☾
53% 0mm 0.01mm -25° 0seconds 1% 0.06mm
22:00 ☾
42% 0mm 0.12mm -35° 0seconds 0% 0.13mm
23:00 ☾
32% 0mm 0.19mm -42° 0seconds 3% 0.19mm
Thu, Jun 18 Sunrise 05:42 Sunset 19:01
24:00 ☾
34% 0mm 0.26mm -47° 0seconds 3% 0.31mm
01:00 ☾
37% 0mm 0mm -46° 0seconds 0% 0.44mm
02:00 ☾
39% 0mm 0mm -41° 0seconds 0% 0.44mm
03:00 ☾
39% 0mm 0.01mm -32° 0seconds 0% 0mm
04:00 ☾
38% 0mm 0.01mm -21° 0seconds 1% 0mm
05:00 ☾
37% 0mm 0mm -9.6° 0seconds 0% 0mm
06:00
44% 0mm 0mm 3.3° 0seconds 0% 0mm
07:00
50% 0mm 0mm 16° 0seconds 0% 0mm
08:00
56% 0mm 0mm 30° 0seconds 0% 0mm
09:00
43% 0mm 0mm 43° 3600seconds 0% 0mm
10:00
29% 0mm 0mm 57° 3600seconds 2% 0mm
11:00
16% 0mm 0mm 71° 3600seconds 3% 0mm
12:00
24% 0mm 0mm 84° 3600seconds 4% 0mm
13:00
31% 0mm 0mm 80° 3600seconds 2% 0mm
14:00 ☾
39% 0mm 0.01mm 67° 3600seconds 4% 0mm
15:00 ☾
26% 0mm 0.01mm 53° 3600seconds 3% 0mm
16:00 ☾
14% 0mm 0.01mm 39° 3600seconds 4% 0mm
17:00 ☾
1% 0mm 0mm 26° 3600seconds 4% 0mm
18:00 ☾
3% 0mm 0mm 13° 3600seconds 2% 0mm
19:00 ☾
5% 0mm 0mm 0.02° 3600seconds 1% 0.06mm
20:00 ☾
7% 0mm 0.01mm -13° 3600seconds 1% 0.06mm
21:00 ☾
5% 0mm 0.01mm -25° 0seconds 1% 0mm
22:00 ☾
2% 0mm 0.01mm -35° 0seconds 1% 0mm
23:00 ☾
0% 0mm 0.01mm -42° 0seconds 3% 0mm
Fri, Jun 19 Sunrise 05:42 Sunset 19:01
24:00 ☾
0% 0mm 0.01mm -47° 0seconds 6% 0mm
01:00 ☾
0% 0mm 0.01mm -46° 0seconds 5% 0.06mm
02:00 ☾
0% 0mm 0.01mm -41° 0seconds 0% 0.06mm
03:00 ☾
1% 0mm 0.01mm -32° 0seconds 1% 0mm
04:00 ☾
2% 0mm 0.01mm -21° 0seconds 0% 0mm
05:00 ☾
3% 0mm 0mm -9.6° 0seconds 0% 0mm
06:00
6% 0mm 0mm 3.2° 0seconds 0% 0mm
07:00
9% 0mm 0.01mm 16° 0seconds 2% 0mm
08:00
12% 0mm 0.02mm 30° 0seconds 33% 0.06mm
09:00
16% 0mm 0.02mm 43° 3600seconds 29% 0mm
10:00
21% 0mm 0.01mm 57° 3600seconds 3% 0mm
11:00
25% 0mm 0mm 71° 3600seconds 0% 0.06mm
12:00
25% 0mm 0mm 84° 3600seconds 0% 0.06mm
13:00
26% 0mm 0mm 80° 3600seconds 0% 0.06mm
14:00 ☾
26% 0mm 0mm 67° 3600seconds 0% 0.06mm
15:00 ☾
30% 0mm 0.01mm 53° 2400seconds 19% 0.06mm
16:00 ☾
34% 0mm 0.02mm 39° 1200seconds 38% 0.06mm
17:00 ☾
37% 0mm 0.03mm 26° 0seconds 58% 0.06mm
18:00 ☾
37% 0.003mm 0.02mm 13° 0seconds 60% 0.08mm
19:00 ☾
37% 0.007mm 0.02mm 0.07° 0seconds 63% 0.1mm
20:00 ☾
37% 0.01mm 0.01mm -13° 0seconds 65% 0.13mm
21:00 ☾
33% 0.007mm 0.02mm -25° 0seconds 73% 0.1mm
22:00 ☾
30% 0.003mm 0.02mm -35° 0seconds 80% 0.08mm
23:00 ☾
26% 0mm 0.03mm -42° 0seconds 87% 0.06mm
Sat, Jun 20 Sunrise 05:42 Sunset 19:01
24:00 ☾
30% 0.003mm 0.02mm -46° 0seconds 84% 0.08mm
01:00 ☾
33% 0.007mm 0.02mm -46° 0seconds 81% 0.1mm
02:00 ☾
37% 0.01mm 0.01mm -41° 0seconds 78% 0.13mm
03:00 ☾
37% 0.007mm 0.007mm -32° 1200seconds 55% 0.08mm
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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