Rule Rainbow Chaser

Rainbow Chaser Forecast for Haleakala, Hawaii

Makawao, Hawaii, United States

Haleakalā's summit overlooks a vast erosional crater filled with cinder cones, whose repeated forms lead toward the island and Pacific horizon.

Currently

Real-time conditions

Rainbow Probability

Sun Elevation-20.0° (Astronomical night)

Local Precipitation13.8mm

Local Rain3.0mm

Local Showers1.0mm

Local Precipitation Chance81%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Tentative Chance of Rainbow

Haleakala

Tomorrow · 16:00–17:00 · 1h window

Medium confidence

46%

🌈Rainbow Probability66%

Sun Elevation: 35.4° (Daylight)

Local Precipitation: 0.4mm

Local Rain: 0.0mm

Local Showers: 0.2mm

Possible Rainbow

Haleakala

Tue, Sep 8 · 17:00–18:00

🌈Rainbow Probability:78%

Medium

Possible Rainbow

Haleakala

Wed, Sep 9 · 08:00–10:00

🌈Rainbow Probability:67.6-80%

Low

Possible Rainbow

Haleakala

Wed, Sep 9 · 16:00–17:00

🌈Rainbow Probability:70%

Medium

Possible Rainbow

Haleakala

Fri, Sep 11 · 08:00–10:00

🌈Rainbow Probability:78.2-82%

Low

Possible Rainbow

Haleakala

Fri, Sep 11 · 16:00–18:00

🌈Rainbow Probability:70%

Low

Possible Rainbow

Haleakala

Sun, Sep 13 · 08:00–09:00

🌈Rainbow Probability:73%

Low

+3 more windows in the next 14 days

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Rainbow Chaser conditions across Hawaii. The requirements and hourly values below show how those signals apply at Haleakala.

Explore Rainbow Chaser conditions across Hawaii →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Haleakala during the last 365 days.

Last 30 days

recorded matching windows · 55% average confidence

Last 90 days

recorded matching windows · 57% average confidence

Last 365 days

158

recorded matching windows · 56% average confidence

Most frequent recorded start hour

17:00 local time, shared by 52 of 158 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour

5matching 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
Sat, Sep 5
19:00	0%	8304m
20:00	0%	983m
21:00	0%	13547m
22:00	0%	14416m
23:00	0%	20456m
Sun, Sep 6
24:00	0%	24134m
01:00	0%	8442m
02:00	0%	8284m
03:00	0%	5008m
04:00	0%	10565m
05:00	0%	24135m
06:00	0%	8268m
07:00	0%	8254m
08:00	65%	5270m
09:00	55%	1781m
10:00	0%	8291m
11:00	0%	4866m
12:00	0%	4263m
13:00	0%	297m
14:00	0%	373m
15:00	0%	246m
16:00	64%	112m
17:00	0%	91m
18:00	0%	142m
19:00	0%	165m
20:00	0%	170m
21:00	0%	150m
22:00	0%	126m
23:00	0%	219m
Mon, Sep 7
24:00	0%	332m
01:00	0%	386m
02:00	0%	152m
03:00	0%	176m
04:00	0%	281m
05:00	0%	224m
06:00	0%	122m
07:00	0%	136m
08:00	0%	171m
09:00	54%	87m
10:00	0%	89m
11:00	0%	377m
12:00	0%	169m
13:00	0%	260m
14:00	0%	1369m
15:00	0%	8825m
16:00	66%	8441m
17:00	58%	8594m
18:00	36%	6871m
19:00	0%	9805m
20:00	0%	15672m
21:00	0%	15596m
22:00	0%	15434m
23:00	0%	24134m
Tue, Sep 8
24:00	0%	24134m
01:00	0%	24134m
02:00	0%	24134m
03:00	0%	24135m
04:00	0%	24135m
05:00	0%	16420m
06:00	0%	15268m
07:00	0%	15179m
08:00	0%	15269m
09:00	55%	24134m
10:00	0%	24135m
11:00	0%	24135m
12:00	0%	24134m
13:00	0%	24134m
14:00	0%	24134m
15:00	0%	24134m
16:00	55%	24134m
17:00	78%	24134m
18:00	48%	24135m
19:00	0%	24135m
20:00	0%	24135m
21:00	0%	24135m
22:00	0%	24135m
23:00	0%	24134m
Wed, Sep 9
24:00	0%	24134m
01:00	0%	24135m
02:00	0%	10249m
03:00	0%	14148m
04:00	0%	18047m
05:00	0%	21946m
06:00	0%	22676m
07:00	59%	23405m
08:00	80%	24135m
09:00	68%	24135m
10:00	0%	24135m
11:00	0%	24135m
12:00	0%	24135m
13:00	0%	24135m
14:00	0%	24135m
15:00	0%	24135m
16:00	70%	24135m
17:00	55%	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
Sun, Sep 6 Sunrise 06:10 Sunset 18:35
20:00 ☾	81%	3mm	1mm	-20°	0seconds	100%	14mm
21:00 ☾	73%	0.48mm	0.79mm	-33°	0seconds	100%	3mm
22:00 ☾	65%	0.05mm	0.63mm	-46°	0seconds	100%	3.8mm
23:00 ☾	57%	0.08mm	0.29mm	-56°	0seconds	100%	4.3mm
Mon, Sep 7 Sunrise 06:10 Sunset 18:35
24:00 ☾	60%	0.06mm	0.04mm	-63°	0seconds	100%	4.5mm
01:00 ☾	62%	0.02mm	0.19mm	-62°	0seconds	100%	4.6mm
02:00 ☾	64%	0.02mm	0.07mm	-54°	0seconds	100%	4.8mm
03:00 ☾	56%	0mm	0.28mm	-43°	0seconds	100%	0.19mm
04:00 ☾	48%	0mm	0.18mm	-30°	0seconds	80%	0.44mm
05:00 ☾	39%	0mm	0.31mm	-17°	0seconds	100%	0.81mm
06:00 ☾	33%	0mm	0.57mm	-3.2°	0seconds	98%	1.3mm
07:00	28%	0mm	0.13mm	11°	0seconds	95%	1.6mm
08:00	22%	0mm	0.63mm	25°	0seconds	98%	1.9mm
09:00	28%	0mm	0.32mm	39°	3600seconds	86%	0.31mm
10:00	33%	0mm	0.41mm	52°	3600seconds	77%	0.56mm
11:00	39%	0mm	0.12mm	65°	3600seconds	77%	0.81mm
12:00	33%	0mm	0.58mm	74°	3600seconds	75%	1.2mm
13:00	28%	0mm	0.08mm	72°	3600seconds	70%	1.6mm
14:00 ☾	22%	0.06mm	0.42mm	62°	3600seconds	64%	2.1mm
15:00 ☾	15%	0mm	0.17mm	49°	3600seconds	62%	0.13mm
16:00 ☾	7%	0mm	0.16mm	35°	3600seconds	94%	0.38mm
17:00 ☾	0%	0mm	0.08mm	21°	3600seconds	92%	0.5mm
18:00 ☾	17%	0mm	0.07mm	7.5°	3600seconds	84%	0.63mm
19:00 ☾	33%	0mm	0.02mm	-6.5°	3600seconds	54%	0.63mm
20:00 ☾	50%	0mm	0.01mm	-20°	3600seconds	23%	0.69mm
21:00 ☾	41%	0.01mm	0mm	-34°	0seconds	19%	0mm
22:00 ☾	31%	0mm	0.01mm	-46°	0seconds	21%	0mm
23:00 ☾	22%	0mm	0mm	-57°	0seconds	35%	0mm
Tue, Sep 8 Sunrise 06:11 Sunset 18:34
24:00 ☾	28%	0mm	0mm	-63°	0seconds	45%	0mm
01:00 ☾	33%	0mm	0mm	-62°	0seconds	67%	0mm
02:00 ☾	39%	0mm	0mm	-54°	0seconds	100%	0mm
03:00 ☾	33%	0mm	0mm	-43°	0seconds	99%	0mm
04:00 ☾	28%	0mm	0mm	-31°	0seconds	92%	0mm
05:00 ☾	22%	0mm	0mm	-17°	0seconds	72%	0mm
06:00 ☾	31%	0mm	0mm	-3.3°	0seconds	89%	0mm
07:00	40%	0mm	0mm	11°	0seconds	100%	0mm
08:00	49%	0mm	0mm	25°	0seconds	100%	0mm
09:00	60%	0mm	0mm	39°	3600seconds	42%	0mm
10:00	71%	0mm	0mm	52°	3600seconds	22%	0mm
11:00	82%	0mm	0mm	65°	3600seconds	22%	0mm
12:00	87%	0mm	0.01mm	74°	3600seconds	21%	0mm
13:00	92%	0mm	0.01mm	72°	3600seconds	42%	0mm
14:00 ☾	97%	0mm	0.03mm	62°	3600seconds	41%	0.06mm
15:00 ☾	91%	0mm	0.04mm	49°	3600seconds	38%	0.06mm
16:00 ☾	85%	0mm	0.02mm	35°	3600seconds	30%	0.06mm
17:00 ☾	78%	0mm	0.02mm	21°	3600seconds	37%	0.13mm
18:00 ☾	83%	0mm	0.02mm	7.3°	3600seconds	26%	0.13mm
19:00 ☾	87%	0mm	0mm	-6.7°	3600seconds	11%	0.13mm
20:00 ☾	91%	0mm	0mm	-21°	3600seconds	28%	0.13mm
21:00 ☾	85%	0mm	0.01mm	-34°	0seconds	31%	0mm
22:00 ☾	79%	0mm	0.03mm	-46°	0seconds	28%	0mm
23:00 ☾	73%	0mm	0.02mm	-57°	0seconds	38%	0.06mm
Wed, Sep 9 Sunrise 06:11 Sunset 18:33
24:00 ☾	77%	0mm	0mm	-63°	0seconds	38%	0.06mm
01:00 ☾	81%	0mm	0.01mm	-62°	0seconds	43%	0.13mm
02:00 ☾	85%	0mm	0.02mm	-55°	0seconds	49%	0.19mm
03:00 ☾	76%	0mm	0.11mm	-43°	1200seconds	40%	0.23mm
04:00 ☾	67%	0mm	0.2mm	-31°	2400seconds	31%	0.27mm
05:00 ☾	57%	0mm	0.29mm	-17°	3600seconds	21%	0.31mm
06:00 ☾	63%	0.01mm	0.19mm	-3.3°	3600seconds	24%	0.42mm
07:00	69%	0.03mm	0.1mm	11°	3600seconds	26%	0.52mm
08:00	76%	0.04mm	0mm	25°	3600seconds	28%	0.63mm
09:00	67%	0.03mm	0.003mm	38°	3600seconds	30%	0.48mm
10:00	58%	0.03mm	0.007mm	52°	3600seconds	33%	0.33mm
11:00	50%	0.02mm	0.01mm	65°	3600seconds	35%	0.19mm
12:00	50%	0.02mm	0.007mm	73°	3600seconds	51%	0.23mm
13:00	50%	0.02mm	0.003mm	72°	3600seconds	67%	0.27mm
14:00 ☾	50%	0.02mm	0mm	62°	3600seconds	83%	0.31mm
15:00 ☾	42%	0.02mm	0.003mm	49°	2400seconds	66%	0.25mm
16:00 ☾	34%	0.01mm	0.007mm	35°	1200seconds	48%	0.19mm
17:00 ☾	26%	0.01mm	0.01mm	21°	0seconds	31%	0.13mm
18:00 ☾	27%	0.007mm	0.1mm	7.1°	0seconds	31%	0.17mm
19:00 ☾	28%	0.003mm	0.19mm	-6.9°	0seconds	32%	0.21mm

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

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →

Forecast generated

Sep 7, 2026, 5:02 AM UTC

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