Rule Golden Hour

Golden Hour Forecast for Ribeira Grande, Azores

Ribeira Grande, Azores, Portugal

Ribeira Grande's river gorge and stone bridges cut through whitewashed streets. The watercourse leads outward toward the rugged cliffs of São Miguel's north coast.

6 matching opportunities in the 14-day forecast.

Hourly forecast scores

Forecast valid from Oct 7, 2026, 11:00 PM UTC (one hour; not an observation)

Golden Hour Potential

Low Cloud Cover59%

Mid Cloud Cover0%

High Cloud Cover3%

Sun Elevation-43.3°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Azores

First upcoming window

Excellent Golden Hour at Sunrise

Ribeira Grande

Thu, Oct 8 · 08:00–08:18 · 1h window

Medium confidence

63%

🌇Golden Hour Potential81%

Low Cloud Cover: 33%

Mid Cloud Cover: 0%

High Cloud Cover: 4%

Sun Elevation: 2.6° (Golden hour)

Exceptional Golden Hour at Sunset

Ribeira Grande

Thu, Oct 8 · 18:40–19:31

🌇Golden Hour Potential:89.5-92.5%

Medium

Exceptional Golden Hour at Sunset

Ribeira Grande

Fri, Oct 9 · 18:38–19:29

🌇Golden Hour Potential:88.9-89.5%

Medium

Exceptional Golden Hour (calm) at Sunrise

Ribeira Grande

Sat, Oct 10 · 08:00–08:20

🌇Golden Hour Potential:90.7%

Medium

Exceptional Golden Hour at Sunset

Ribeira Grande

Sat, Oct 10 · 18:37–19:28

🌇Golden Hour Potential:96-100%

Medium

Exceptional Golden Hour at Sunset

Ribeira Grande

Wed, Oct 14 · 18:31–19:22

🌇Golden Hour Potential:86.4-99.3%

Low

71-hour requirements breakdown

When available, this detailed table covers only the stated 71-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Atlantic/Azores.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (Atlantic/Azores)	Diffuse Radiation	Direct Radiation	Golden Hour	High Clouds	Low Clouds	Mid-Level Clouds	Relative Humidity	Solar Elevation	Total Cloud Coverage	Wind Speed
Wed, Oct 7, 2026Sunrise 07:43 · Sunset 19:15
23:00 Night	0W/m²	0W/m²	Unavailable	3%	59%	0%	81%	-43°	59%	3.4m/s
Thu, Oct 8, 2026Sunrise 07:44 · Sunset 19:14
24:00 Night	0W/m²	0W/m²	Unavailable	7%	46%	0%	79%	-52°	49%	3.3m/s
01:00 Night	0W/m²	0W/m²	Unavailable	33%	25%	0%	76%	-57°	55%	3.1m/s
02:00 Night	0W/m²	0W/m²	Unavailable	98%	22%	0%	73%	-57°	99%	3.3m/s
03:00 Night	0W/m²	0W/m²	Unavailable	100%	7%	0%	74%	-52°	100%	3m/s
04:00 Night	0W/m²	0W/m²	Unavailable	100%	30%	0%	75%	-43°	100%	2.6m/s
05:00 Night	0W/m²	0W/m²	Unavailable	100%	0%	0%	70%	-33°	98%	2.7m/s
06:00 Night	0W/m²	0W/m²	Unavailable	58%	4%	0%	69%	-21°	63%	2.4m/s
07:00 Night	0W/m²	0W/m²	Unavailable	1%	5%	0%	74%	-9.4°	7%	2.3m/s
08:00	2W/m²	1W/m²	Unavailable	4%	33%	0%	74%	2.6°	34%	2.1m/s
09:00	48W/m²	31W/m²	Unavailable	29%	77%	0%	75%	14°	75%	4.4m/s
10:00	100W/m²	147W/m²	Unavailable	35%	35%	0%	67%	25°	61%	5.2m/s
11:00	130W/m²	312W/m²	Unavailable	34%	71%	0%	61%	34°	81%	4.8m/s
12:00	193W/m²	350W/m²	Unavailable	36%	57%	0%	62%	41°	75%	5.2m/s
13:00	216W/m²	384W/m²	Unavailable	12%	53%	0%	60%	46°	57%	5.1m/s
14:00	204W/m²	442W/m²	Unavailable	2%	68%	0%	59%	46°	68%	4.9m/s
15:00	210W/m²	398W/m²	Unavailable	0%	76%	0%	58%	41°	76%	4.8m/s
16:00	204W/m²	272W/m²	Unavailable	0%	52%	0%	59%	34°	52%	4.8m/s
17:00	152W/m²	211W/m²	Unavailable	0%	66%	0%	65%	24°	66%	5m/s
18:00	84W/m²	174W/m²	Unavailable	11%	30%	0%	65%	14°	40%	4.4m/s
19:00	41W/m²	47W/m²	Unavailable	8%	0%	0%	66%	2.3°	9%	3.6m/s
20:00 Night	1W/m²	0W/m²	Unavailable	10%	0%	0%	71%	-9.7°	10%	2.8m/s
21:00 Night	0W/m²	0W/m²	Unavailable	6%	15%	0%	74%	-22°	21%	2.6m/s
22:00 Night	0W/m²	0W/m²	Unavailable	0%	0%	0%	73%	-33°	0%	2.5m/s
23:00 Night	0W/m²	0W/m²	Unavailable	0%	0%	0%	74%	-44°	0%	2.4m/s
Fri, Oct 9, 2026Sunrise 07:45 · Sunset 19:13
24:00 Night	0W/m²	0W/m²	Unavailable	0%	13%	0%	76%	-52°	13%	2.5m/s
01:00 Night	0W/m²	0W/m²	Unavailable	8%	12%	0%	76%	-58°	19%	2.5m/s
02:00 Night	0W/m²	0W/m²	Unavailable	6%	19%	0%	75%	-58°	24%	2.5m/s
03:00 Night	0W/m²	0W/m²	Unavailable	1%	30%	0%	76%	-52°	32%	2.5m/s
04:00 Night	0W/m²	0W/m²	Unavailable	0%	23%	0%	78%	-44°	23%	2m/s
05:00 Night	0W/m²	0W/m²	Unavailable	0%	31%	0%	81%	-33°	31%	1.7m/s
06:00 Night	0W/m²	0W/m²	Unavailable	0%	17%	0%	84%	-21°	17%	1.7m/s
07:00 Night	0W/m²	0W/m²	Unavailable	0%	2%	0%	82%	-9.6°	2%	1.4m/s
08:00	2W/m²	1W/m²	Unavailable	0%	26%	0%	85%	2.4°	26%	1.4m/s
09:00	48W/m²	50W/m²	Unavailable	0%	50%	0%	85%	14°	50%	1.6m/s
10:00	100W/m²	160W/m²	Unavailable	0%	45%	0%	71%	24°	45%	2.2m/s
11:00	157W/m²	224W/m²	Unavailable	0%	51%	0%	66%	34°	51%	3.5m/s
12:00	205W/m²	273W/m²	Unavailable	0%	61%	0%	66%	41°	61%	3.8m/s
13:00	219W/m²	397W/m²	Unavailable	0%	49%	0%	65%	45°	50%	3.5m/s
14:00	171W/m²	521W/m²	Unavailable	0%	43%	0%	62%	45°	43%	3.1m/s
15:00	145W/m²	533W/m²	Unavailable	0%	51%	0%	59%	41°	51%	2.9m/s
16:00	102W/m²	497W/m²	Unavailable	0%	43%	0%	57%	34°	43%	2.6m/s
17:00	77W/m²	385W/m²	Unavailable	0%	6%	0%	55%	24°	6%	2.3m/s
18:00	61W/m²	222W/m²	Unavailable	0%	0%	0%	54%	13°	0%	2.2m/s
19:00	36W/m²	55W/m²	Unavailable	0%	0%	0%	59%	2.1°	0%	1.9m/s
20:00 Night	0W/m²	0W/m²	Unavailable	0%	0%	0%	69%	-10°	0%	1.6m/s
21:00 Night	0W/m²	0W/m²	Unavailable	0%	0%	0%	75%	-22°	0%	1.4m/s
22:00 Night	0W/m²	0W/m²	Unavailable	0%	0%	0%	78%	-33°	0%	1.5m/s
23:00 Night	0W/m²	0W/m²	Unavailable	0%	17%	0%	78%	-44°	17%	1.4m/s
Sat, Oct 10, 2026Sunrise 07:45 · Sunset 19:11
24:00 Night	0W/m²	0W/m²	Unavailable	0%	42%	0%	81%	-53°	42%	1.3m/s
01:00 Night	0W/m²	0W/m²	Unavailable	0%	52%	0%	83%	-58°	52%	1m/s
02:00 Night	0W/m²	0W/m²	Unavailable	15%	74%	0%	83%	-58°	72%	1.7m/s
03:00 Night	0W/m²	0W/m²	Unavailable	15%	54%	0%	82%	-53°	59%	1.8m/s
04:00 Night	0W/m²	0W/m²	Unavailable	0%	54%	0%	82%	-44°	54%	1.5m/s
05:00 Night	0W/m²	0W/m²	Unavailable	0%	52%	0%	82%	-33°	52%	1.3m/s
06:00 Night	0W/m²	0W/m²	Unavailable	0%	25%	0%	81%	-22°	25%	0.9m/s
07:00 Night	0W/m²	0W/m²	Unavailable	0%	7%	0%	80%	-9.8°	7%	0.54m/s
08:00	2W/m²	1W/m²	Unavailable	0%	39%	0%	80%	2.2°	39%	0.67m/s
09:00	45W/m²	49W/m²	Unavailable	0%	58%	0%	80%	13°	58%	0.89m/s
10:00	96W/m²	149W/m²	Unavailable	0%	66%	0%	77%	24°	66%	1.1m/s
11:00	142W/m²	263W/m²	Unavailable	0%	69%	0%	73%	34°	69%	1.5m/s
12:00	197W/m²	307W/m²	Unavailable	0%	69%	0%	73%	41°	69%	2.2m/s
13:00	183W/m²	458W/m²	Unavailable	10%	51%	0%	74%	45°	52%	2.9m/s
14:00	135W/m²	575W/m²	Unavailable	26%	31%	0%	68%	45°	50%	3.4m/s
15:00	124W/m²	561W/m²	Unavailable	28%	12%	0%	63%	41°	36%	3.4m/s
16:00	95W/m²	515W/m²	Unavailable	4%	10%	0%	62%	33°	13%	3.7m/s
17:00	76W/m²	389W/m²	Unavailable	0%	20%	0%	63%	24°	20%	3.5m/s
18:00	59W/m²	219W/m²	Unavailable	0%	0%	0%	65%	13°	0%	3.5m/s
19:00	33W/m²	54W/m²	Unavailable	1%	15%	0%	69%	1.8°	14%	3.1m/s
20:00 Night	0W/m²	0W/m²	Unavailable	1%	29%	0%	74%	-10°	28%	2.6m/s
21:00 Night	0W/m²	0W/m²	Unavailable	2%	44%	0%	77%	-22°	42%	2.4m/s
22:00 Night	0W/m²	0W/m²	Unavailable	1%	45%	0%	78%	-34°	44%	2.6m/s

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Golden Hour conditions across Azores. The requirements and hourly values above show how those signals apply at Ribeira Grande.

Explore Golden Hour conditions across Azores →

Recorded match history

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

Last 30 days

recorded matching windows · 71% average confidence

Last 90 days

recorded matching windows · 71% average confidence

Last 365 days

115

recorded matching windows · 71% average confidence

Most frequent recorded start hour

20:00 local time, shared by 37 of 115 matches recorded in the last 365 days.

Most represented month

September, with 33 of 115 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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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 →

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