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Rule Rainbow Chaser

Waimea Canyon - Rainbow Chaser - Hawaii

Lihue, Hawaii, United States

Sun breaking through rain — perfect rainbow conditions

Currently

Real-time conditions
Rainbow Probability
0%
Sun Elevation23.8° (Daylight)
Precipitation0.4mm
Rain0.0mm
Showers0.3mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu
Next opportunity
Rainbow Chaser
Waimea Canyon
Today · 16:00–17:00 · 1h window
Medium confidence
61%
🌈Rainbow Probability85%
rainbow weather icon
Excellent Chance of Rainbow (double)
Waimea Canyon
Today · 17:00–18:00
🌈Rainbow Probability:95%
Medium
rainbow weather icon
Good Chance of Rainbow
Waimea Canyon
Today · 18:00–19:00
🌈Rainbow Probability:60.7%
Medium
rainbow weather icon
Rainbow Chaser
Waimea Canyon
Tomorrow · 09:00–10:00
🌈Rainbow Probability:70%
Medium
rainbow weather icon
Excellent Chance of Rainbow (double)
Waimea Canyon
Tomorrow · 17:00–18:00
🌈Rainbow Probability:95%
Medium
rainbow weather icon
Good Chance of Rainbow
Waimea Canyon
Tomorrow · 18:00–19:00
🌈Rainbow Probability:66%
Medium
rainbow weather icon
Rainbow Chaser
Waimea Canyon
Wed, Feb 18 · 09:00–10:00
🌈Rainbow Probability:70%
Medium
+13 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
14matching 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
Sun, Feb 15
09:0080%22991m
10:0087%21238m
11:000%23415m
12:000%24134m
13:000%12500m
14:000%19359m
15:000%19799m
16:00100%11470m
17:00100%11147m
18:0070%10155m
19:000%9812m
20:000%14625m
21:000%24063m
22:000%24134m
23:000%24135m
Mon, Feb 16
24:000%24134m
01:000%24135m
02:000%24134m
03:000%24134m
04:000%23963m
05:000%24135m
06:000%24135m
07:000%23827m
08:0060%18647m
09:000%19923m
10:000%22160m
11:000%24135m
12:000%24134m
13:000%24134m
14:000%24135m
15:000%24135m
16:0085%24134m
17:0095%23818m
18:0061%24135m
19:000%24134m
20:000%24135m
21:000%24134m
22:000%24135m
23:000%24038m
Tue, Feb 17
24:000%19583m
01:000%19686m
02:000%20132m
03:000%20573m
04:000%19799m
05:000%22952m
06:000%18307m
07:000%13119m
08:0055%24135m
09:0070%24134m
10:0039%24134m
11:000%23687m
12:000%23759m
13:000%24135m
14:000%24135m
15:000%24134m
16:0045%24135m
17:0095%22747m
18:0066%18207m
19:000%21239m
20:000%22637m
21:000%24135m
22:000%24135m
23:000%24135m
Wed, Feb 18
24:000%23949m
01:000%17090m
02:000%22979m
03:000%23785m
04:000%24134m
05:000%24135m
06:000%24135m
07:000%20700m
08:000%19615m
09:0070%21442m
10:0073%21315m
11:000%21052m
12:000%22400m
13:000%22963m
14:000%23527m
15:000%20978m
16:0070%18429m
17:000%15881m
18:000%14718m
19:000%13556m
20:000%12394m
21:000%13429m
22:000%14465m
23:000%15501m
Thu, Feb 19
24:000%13827m
01:000%12153m
02:000%10480m
03:000%12275m
04:000%14070m
05:000%15865m
06:000%15671m
07:000%15478m
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
Rainfall
mm
Showers
mm
Solar Elevation
°
Sunshine Duration
seconds
Total Cloud Coverage
%
Total Precipitation
mm
Mon, Feb 16 Sunrise 07:07 Sunset 18:34
09:00 ☾
0mm 0.29mm 24° 0seconds 100% 0.38mm
10:00 ☾
0mm 0.31mm 36° 0seconds 95% 0.69mm
11:00 ☾
0.01mm 0.19mm 46° 3600seconds 88% 0.94mm
12:00 ☾
0.01mm 0.08mm 54° 3600seconds 21% 1.1mm
13:00 ☾
0mm 0.12mm 56° 3600seconds 13% 1.2mm
14:00 ☾
0mm 0.16mm 52° 3600seconds 26% 1.3mm
15:00 ☾
0mm 0.16mm 44° 3600seconds 40% 0.19mm
16:00 ☾
0mm 0.1mm 33° 3600seconds 34% 0.31mm
17:00 ☾
0.01mm 0.15mm 20° 3600seconds 44% 0.44mm
18:00 ☾
0mm 0.13mm 7.3° 3600seconds 30% 0.63mm
19:00 ☾
0mm 0.14mm -6.3° 3600seconds 23% 0.75mm
20:00 ☾
0mm 0.08mm -20° 3600seconds 57% 0.81mm
21:00 ☾
0mm 0.1mm -34° 0seconds 100% 0.13mm
22:00 ☾
0.01mm 0.06mm -48° 0seconds 100% 0.19mm
23:00 ☾
0mm 0.05mm -62° 0seconds 100% 0.25mm
Tue, Feb 17 Sunrise 07:07 Sunset 18:35
24:00 ☾
0mm 0.29mm -74° 0seconds 100% 0.56mm
01:00 ☾
0mm 0.27mm -80° 0seconds 90% 0.81mm
02:00 ☾
0mm 0.23mm -71° 0seconds 100% 1.1mm
03:00 ☾
0mm 0.23mm -58° 0seconds 100% 0.25mm
04:00 ☾
0.01mm 0.19mm -44° 0seconds 100% 0.5mm
05:00 ☾
0mm 0.23mm -30° 0seconds 92% 0.69mm
06:00 ☾
0mm 0.31mm -16° 0seconds 75% 1mm
07:00 ☾
0mm 0.46mm -2.3° 0seconds 94% 1.5mm
08:00 ☾
0mm 0.1mm 11° 0seconds 13% 1.7mm
09:00 ☾
0mm 0.06mm 24° 3600seconds 55% 0.13mm
10:00 ☾
0mm 0.05mm 36° 3600seconds 6% 0.13mm
11:00 ☾
0mm 0.16mm 47° 3600seconds 86% 0.25mm
12:00 ☾
0mm 0.15mm 54° 3600seconds 54% 0.38mm
13:00 ☾
0mm 0.08mm 56° 3600seconds 7% 0.5mm
14:00 ☾
0mm 0.08mm 52° 3600seconds 15% 0.63mm
15:00 ☾
0mm 0.06mm 44° 3600seconds 12% 0.06mm
16:00 ☾
0mm 0.1mm 33° 3600seconds 7% 0.13mm
17:00 ☾
0mm 0.19mm 20° 3600seconds 41% 0.31mm
18:00 ☾
0mm 0.37mm 7.4° 3600seconds 35% 0.56mm
19:00 ☾
0mm 0.24mm -6.2° 3600seconds 73% 0.88mm
20:00 ☾
0.01mm 0.13mm -20° 3600seconds 100% 1.1mm
21:00 ☾
0mm 0.1mm -34° 0seconds 100% 0.13mm
22:00 ☾
0.01mm 0.04mm -48° 0seconds 100% 0.19mm
23:00 ☾
0mm 0.06mm -61° 0seconds 64% 0.25mm
Wed, Feb 18 Sunrise 07:06 Sunset 18:35
24:00 ☾
0mm 0.16mm -74° 0seconds 39% 0.31mm
01:00 ☾
0.01mm 0.31mm -79° 0seconds 81% 0.63mm
02:00 ☾
0mm 0.21mm -71° 0seconds 54% 0.81mm
03:00 ☾
0mm 0.18mm -58° 0seconds 65% 0.19mm
04:00 ☾
0mm 0.07mm -44° 0seconds 91% 0.31mm
05:00 ☾
0mm 0.01mm -30° 0seconds 44% 0.31mm
06:00 ☾
0mm 0.03mm -16° 0seconds 40% 0.38mm
07:00 ☾
0mm 0.25mm -2.2° 0seconds 88% 0.5mm
08:00 ☾
0mm 0.27mm 11° 0seconds 96% 0.81mm
09:00 ☾
0.01mm 0.29mm 24° 3600seconds 91% 0.31mm
10:00 ☾
0mm 0.29mm 36° 3600seconds 84% 0.56mm
11:00 ☾
0mm 0.27mm 47° 3600seconds 56% 0.88mm
12:00 ☾
0mm 0.26mm 54° 3600seconds 51% 1.2mm
13:00 ☾
0mm 0.25mm 57° 3600seconds 100% 1.4mm
14:00 ☾
0mm 0.22mm 53° 3600seconds 100% 1.7mm
15:00 ☾
0mm 0.27mm 44° 2400seconds 100% 1.3mm
16:00 ☾
0mm 0.32mm 33° 1200seconds 100% 0.94mm
17:00 ☾
0mm 0.37mm 21° 0seconds 100% 0.56mm
18:00 ☾
0.03mm 0.32mm 7.5° 0seconds 99% 0.83mm
19:00 ☾
0.07mm 0.27mm -6.1° 0seconds 97% 1.1mm
20:00 ☾
0.1mm 0.22mm -20° 0seconds 96% 1.4mm
21:00 ☾
0.09mm 0.18mm -34° 0seconds 97% 1.2mm
22:00 ☾
0.07mm 0.15mm -48° 0seconds 99% 1mm
23:00 ☾
0.06mm 0.11mm -61° 0seconds 100% 0.81mm
Thu, Feb 19 Sunrise 07:05 Sunset 18:36
24:00 ☾
0.07mm 0.18mm -74° 0seconds 100% 1.1mm
01:00 ☾
0.07mm 0.26mm -79° 0seconds 100% 1.3mm
02:00 ☾
0.08mm 0.33mm -70° 0seconds 100% 1.6mm
03:00 ☾
0.07mm 0.27mm -57° 1200seconds 100% 1.3mm
04:00 ☾
0.06mm 0.2mm -44° 2400seconds 100% 1mm
05:00 ☾
0.05mm 0.14mm -30° 3600seconds 100% 0.75mm
06:00 ☾
0.07mm 0.14mm -16° 3600seconds 100% 0.94mm
07:00 ☾
0.09mm 0.13mm -2° 3600seconds 100% 1.1mm
08:00 ☾
0.11mm 0.13mm 11° 3600seconds 100% 1.3mm
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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