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Rule Golden Hour

Da Lat - Golden Hour - Vietnam

Da Lat, Lâm Đồng Province, Vietnam

That magical warm light just after sunrise or before sunset

No opportunities right now
Here’s what usually blocks matches

No Golden Hour opportunities in the next 14 days

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Rule requirements (key thresholds)
Golden Hour · Any Golden Hour Potential · ≥ 80.0% Precipitation Chance · ≤ 5.0% Visibility · ≥ 1000.0m

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Golden Hour Potential 97% failing
Golden Hour 88% failing
Precipitation Chance 85% failing

Currently

Real-time conditions
Low Cloud Cover19%
Mid Cloud Cover100%
High Cloud Cover75%
Sun Elevation-35.7° (Astronomical night)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Ho_Chi_Minh

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast identifies optimal golden hour conditions for Vietnam's diverse landscapes, from limestone karsts emerging from emerald waters to ancient trading ports lit by thousands of lanterns. We track cloud cover, visibility, and atmospheric conditions to predict when warm directional light enhances Vietnam's distinctive natural and cultural features.

Vietnam's geography—stretching over 1,000 miles from north to south—offers extraordinary variety. Northern limestone karsts at Ha Long Bay and Ninh Binh glow ethereally in early and late light, while central ancient towns like Hoi An come alive as sunset transitions to lantern-lit evening. Mountain landscapes at Sapa and Mu Cang Chai showcase terraced rice paddies that shift color dramatically through the seasons under golden light.

What makes Vietnam golden-hour photography distinctive:

  • Limestone karst magic - Ha Long Bay's 2,000 limestone islands and Ninh Binh's inland karsts appear to float when bathed in warm sunrise light
  • Rice terrace gradients - Sapa and Mu Cang Chai's cascading terraces glow golden during harvest season (September-October) or reflect sky colors when flooded (May-June)
  • Ancient town transitions - Hoi An's yellow buildings and lanterns create magical compositions as natural sunset light gives way to artificial illumination
  • Imperial architecture - Hue's citadel and royal tombs take on regal quality under warm directional light along the Perfume River

Ha Long Bay at sunrise provides Vietnam's iconic image—limestone karsts silhouetted against pastel skies with mirror-calm emerald waters, best December through February during dry season. Hoi An requires precise timing—arrive 30 minutes before sunset to capture yellow buildings in warm natural light, then stay as lanterns illuminate the Thu Bon River. Ninh Binh's karsts work magnificently at both sunrise and sunset, with flooded rice paddies providing reflections. At Sapa, golden hour during harvest season (late September-early October) transforms green terraces to gold.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Ho_Chi_Minh
Golden Hour
Any
Golden Hour Potential
≥ 80.0%
Precipitation Chance
≤ 5.0%
Visibility
≥ 1000.0m
Tue, Jul 7
21:0018%84%24135m
22:0014%86%24135m
23:0014%89%24135m
Wed, Jul 8
24:0012%92%3086m
01:009%95%185m
02:009%78%494m
03:009%52%104m
04:009%39%110m
05:0024%49%221m
06:0014%60%575m
07:009%71%300m
08:0021%76%21251m
09:0024%80%24135m
10:0022%85%24135m
11:0020%84%24135m
12:0018%82%23998m
13:0024%81%24135m
14:0021%60%24134m
15:0019%30%24135m
16:0016%0%24134m
17:0056%33%24134m
18:0060%67%24134m
19:0026%100%24134m
20:0024%72%24134m
21:0026%45%24135m
22:0024%17%24135m
23:0027%45%24135m
Thu, Jul 9
24:0021%72%24135m
01:0018%100%1081m
02:0018%67%273m
03:0018%33%155m
04:0015%0%150m
05:0030%13%302m
06:0028%26%21626m
07:0024%39%24135m
08:0027%38%24135m
09:0026%38%24135m
10:0027%37%24134m
11:0021%40%24134m
12:0017%42%24134m
13:0017%44%23890m
14:0017%29%24135m
15:0018%15%24134m
16:0021%0%24135m
17:0064%0%24134m
18:0052%0%24135m
19:0020%0%11465m
20:0020%0%24134m
21:0021%0%21307m
22:0023%0%24135m
23:0018%0%24134m
Fri, Jul 10
24:0017%0%24135m
01:0023%0%24135m
02:0021%13%24134m
03:0017%26%21719m
04:0018%39%24135m
05:0046%47%24135m
06:0024%56%24135m
07:0014%64%24135m
08:0015%55%21007m
09:0015%47%494m
10:0015%39%324m
11:0014%50%1832m
12:0014%61%2154m
13:0014%72%24135m
14:0017%55%24134m
15:0018%39%24134m
16:0017%22%24135m
17:0096%33%24134m
18:0095%45%24134m
19:0022%56%24134m
20:0017%50%24135m
21:0016%44%24134m
22:0017%38%24134m
23:0018%42%24135m
Sat, Jul 11
24:0015%47%24135m
01:0015%52%21171m
02:000%62%14839m
03:000%72%8507m
04:000%82%2175m
05:0044%82%8626m
06:0015%82%15078m
07:000%83%21530m
08:000%78%15246m
09:000%73%8963m
10:000%69%2679m
11:000%76%2366m
12:000%83%2054m
13:000%90%1741m
14:000%73%1835m
15:000%56%1930m
16:000%39%2025m
17:0025%46%2383m
18:0025%54%2742m
19:000%62%3101m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Golden Hour Potential 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
Asia/Ho_Chi_Minh
Golden Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Wind Speed
m/s
Wed, Jul 8 Sunrise 05:27 Sunset 18:14
21:00
- 75% 19% 100% 96% -36° 100% 1.3m/s
22:00
- 100% 17% 100% 96% -46° 100% 1.1m/s
23:00
- 73% 25% 100% 97% -53° 100% 1.3m/s
Thu, Jul 9 Sunrise 05:27 Sunset 18:14
24:00
- 87% 30% 60% 98% -56° 88% 1.5m/s
01:00
- 56% 43% 95% 98% -52° 95% 1.4m/s
02:00
- 98% 64% 95% 98% -43° 98% 1.4m/s
03:00
- 75% 74% 93% 98% -32° 95% 1.3m/s
04:00
- 100% 79% 74% 97% -20° 100% 1.6m/s
05:00
- 100% 74% 69% 96% -7° 100% 1.8m/s
06:00
- 100% 66% 79% 95% 6.6° 100% 2.1m/s
07:00
- 100% 16% 83% 90% 20° 100% 2.2m/s
08:00
- 100% 0% 61% 74% 34° 100% 3.4m/s
09:00
- 85% 6% 5% 65% 48° 85% 4.3m/s
10:00
- 100% 4% 16% 60% 61° 100% 4.3m/s
11:00
- 100% 30% 17% 61% 74° 100% 4.3m/s
12:00
- 100% 53% 5% 64% 79° 100% 4.1m/s
13:00
- 100% 71% 8% 67% 71° 100% 3.5m/s
14:00
- 100% 79% 5% 71% 58° 100% 3.3m/s
15:00
- 100% 96% 5% 80% 44° 100% 3m/s
16:00
- 100% 26% 5% 88% 30° 100% 2.2m/s
17:00
- 100% 9% 9% 80% 16° 100% 2.6m/s
18:00
- 95% 25% 20% 92% 2.8° 95% 1.6m/s
19:00
- 99% 48% 60% 98% -11° 99% 1.5m/s
20:00
- 86% 19% 71% 97% -24° 86% 1.7m/s
21:00
- 93% 7% 58% 94% -36° 93% 2.3m/s
22:00
- 52% 9% 83% 92% -46° 84% 2.6m/s
23:00
- 9% 16% 71% 93% -53° 71% 2.7m/s
Fri, Jul 10 Sunrise 05:27 Sunset 18:14
24:00
- 5% 36% 78% 92% -56° 78% 3.3m/s
01:00
- 8% 55% 78% 94% -52° 79% 3.5m/s
02:00
- 28% 46% 65% 92% -43° 68% 4m/s
03:00
- 65% 40% 25% 92% -33° 65% 4m/s
04:00
- 100% 41% 32% 93% -20° 100% 4.3m/s
05:00
- 100% 78% 35% 93% -7.1° 100% 4.1m/s
06:00
- 100% 65% 58% 92% 6.5° 100% 4.3m/s
07:00
- 100% 88% 51% 90% 20° 100% 4.1m/s
08:00
- 100% 100% 27% 89% 34° 100% 4m/s
09:00
- 100% 100% 22% 91% 48° 100% 4.2m/s
10:00
- 100% 99% 5% 92% 61° 100% 4m/s
11:00
- 100% 99% 5% 92% 74° 100% 4m/s
12:00
- 100% 100% 5% 91% 80° 100% 3.7m/s
13:00
- 100% 72% 5% 91% 71° 100% 3.6m/s
14:00
- 100% 52% 5% 77% 58° 100% 4.4m/s
15:00
- 100% 58% 5% 68% 44° 100% 4.5m/s
16:00
- 76% 67% 5% 73% 30° 76% 4.3m/s
17:00
- 5% 11% 7% 79% 16° 11% 4.2m/s
18:00
- 14% 7% 18% 82% 2.8° 18% 4m/s
19:00
- 36% 32% 26% 90% -11° 38% 3.8m/s
20:00
- 19% 54% 23% 93% -24° 54% 4m/s
21:00
- 88% 64% 18% 93% -36° 88% 4.3m/s
22:00
- 63% 66% 17% 89% -46° 69% 5.1m/s
23:00
- 70% 14% 19% 85% -54° 70% 5.2m/s
Sat, Jul 11 Sunrise 05:28 Sunset 18:14
24:00
- 98% 51% 64% 90% -56° 98% 5.1m/s
01:00
- 100% 94% 54% 94% -52° 100% 4.5m/s
02:00
- 72% 96% 45% 92% -44° 100% 4.6m/s
03:00
- 45% 97% 36% 90% -33° 99% 4.6m/s
04:00
- 18% 99% 27% 88% -20° 99% 4.6m/s
05:00
- 27% 98% 28% 88% -7.1° 98% 4.4m/s
06:00
- 36% 98% 29% 88% 6.5° 98% 4.2m/s
07:00
- 45% 98% 30% 89% 20° 98% 3.9m/s
08:00
- 43% 94% 29% 90% 34° 94% 4.1m/s
09:00
- 42% 89% 27% 91% 48° 90% 4.4m/s
10:00
- 40% 84% 26% 92% 61° 86% 4.6m/s
11:00
- 60% 87% 23% 93% 74° 91% 4.7m/s
12:00
- 80% 90% 21% 94% 80° 95% 4.8m/s
13:00
- 100% 93% 18% 95% 71° 100% 4.9m/s
14:00
- 79% 94% 44% 94% 58° 100% 5m/s
15:00
- 58% 95% 71% 94% 44° 100% 5.2m/s
16:00
- 37% 97% 97% 94% 30° 100% 5.3m/s
17:00
- 58% 96% 79% 94% 16° 100% 5.3m/s
18:00
- 79% 95% 62% 93% 2.8° 100% 5.4m/s
19:00
- 100% 94% 44% 93% -11° 100% 5.5m/s
20:00
- 68% 92% 51% 93% -24° 97% 5.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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