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Rule Mirror Lake

Sapa - Mirror Lake - Vietnam

Sa Pa, Lào Cai Province, Vietnam

Perfectly calm water for flawless reflections

No opportunities right now
Here’s what usually blocks matches

No Mirror Lake opportunities in the next 14 days

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Rule requirements (key thresholds)
Wind Speed · ≤ 1.0m/s Wind Gusts · ≤ 2.0m/s Precipitation Chance · ≤ 10.0% Visibility · ≥ 5000.0m

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

Most common blockers (next 72 hours)
Precipitation Chance 100% failing
Wind Speed 56% failing
Visibility 47% failing

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Bangkok

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 tracks conditions for reflection photography across Vietnam's diverse water features, from the emerald waters of Ha Long Bay to flooded rice terraces cascading down mountain slopes. We analyze wind speed, cloud cover, water levels, and seasonal agricultural patterns to predict when mirror-like surfaces create symmetrical compositions.

Vietnam offers exceptional reflection opportunities year-round, but they vary dramatically by season and location. Ha Long Bay and Ninh Binh provide reflections of limestone karsts in emerald and jade-green waters. Rice terraces at Sapa and Mu Cang Chai become reflective during planting season (May-June) when paddies are flooded. Ancient towns like Hoi An create lantern reflections in the Thu Bon River.

What makes Vietnam reflection photography distinctive:

  • Karst water reflections - Ha Long Bay's limestone islands and Ninh Binh's Tam Coc karsts create perfect natural symmetry in calm emerald waters
  • Flooded rice terraces - Sapa and Mu Cang Chai terraces become giant mirrors during planting season, reflecting sky colors at dawn and dusk
  • Ancient town waters - Hoi An's Thu Bon River doubles the visual impact of yellow buildings and colorful lanterns during evening hours
  • Imperial reflections - Hue's Perfume River mirrors royal tombs, pagodas, and the historic citadel under calm conditions

Ha Long Bay requires calm conditions—early morning (before 9 AM) or late afternoon typically offer the best chance before tourist boats disturb waters. December through February dry season provides calmest conditions. Ninh Binh's Tam Coc area works similarly, with boat-free early morning hours (6-8 AM) essential for undisturbed reflections among the karsts. Rice terrace reflections at Sapa and Mu Cang Chai require precise timing—May and June during planting when fields are flooded but crops haven't grown. Hoi An's river reflections work best from 5-8 PM during blue hour when lanterns are lit but water remains calm.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Bangkok
Wind Speed
≤ 1.0m/s
Wind Gusts
≤ 2.0m/s
Precipitation Chance
≤ 10.0%
Visibility
≥ 5000.0m
Wed, Jul 8
12:001.6m/s1.8m/s100%4503m
13:001.5m/s1.7m/s100%12719m
14:000.92m/s1.5m/s80%12240m
15:000.69m/s1.3m/s63%24135m
16:000.7m/s1.4m/s46%24134m
17:000.71m/s1.4m/s52%24134m
18:000.7m/s1m/s58%24134m
19:000.62m/s0.9m/s64%17487m
20:000.31m/s0.71m/s57%17384m
21:000.31m/s0.82m/s50%17370m
22:000.43m/s0.81m/s43%17348m
23:000.66m/s1.1m/s49%17307m
Thu, Jul 9
24:000.51m/s1.1m/s55%9549m
01:000.61m/s1.1m/s61%5529m
02:000.64m/s1.2m/s72%358m
03:000.56m/s1.2m/s83%224m
04:000.62m/s1m/s94%201m
05:000.59m/s1.1m/s96%160m
06:000.56m/s1.1m/s98%144m
07:000.87m/s1.2m/s100%106m
08:001.1m/s1.4m/s100%120m
09:001.2m/s1.4m/s100%3593m
10:001.6m/s1.8m/s100%765m
11:001.6m/s1.9m/s100%262m
12:001.9m/s2.2m/s100%3406m
13:001.9m/s2.5m/s100%7963m
14:001.9m/s2.5m/s89%8080m
15:001.8m/s2.3m/s78%16493m
16:001.7m/s2.2m/s67%24135m
17:001.7m/s2.3m/s68%24134m
18:001.5m/s2.4m/s68%19506m
19:001.2m/s1.7m/s68%20236m
20:000.79m/s1.3m/s54%9546m
21:000.63m/s1.4m/s40%9401m
22:000.67m/s1.3m/s26%11646m
23:000.71m/s1.3m/s26%12955m
Fri, Jul 10
24:000.75m/s1.3m/s27%9361m
01:000.96m/s1.5m/s27%310m
02:001m/s1.7m/s27%142m
03:001m/s1.7m/s26%94m
04:001.1m/s1.8m/s26%72m
05:001.1m/s2m/s36%57m
06:001.2m/s1.9m/s46%52m
07:001.2m/s1.8m/s56%48m
08:001.4m/s1.9m/s64%44m
09:001.4m/s1.9m/s71%46m
10:001.6m/s2m/s79%50m
11:001.6m/s2m/s82%59m
12:001.6m/s1.9m/s85%69m
13:001.6m/s2.1m/s88%106m
14:001.9m/s2.3m/s75%176m
15:002m/s2.3m/s62%5680m
16:001.9m/s2.3m/s49%1126m
17:001.7m/s2.2m/s53%9299m
18:001.4m/s2m/s57%1252m
19:001.1m/s1.7m/s62%395m
20:000.93m/s1.4m/s54%331m
21:000.76m/s1.4m/s46%187m
22:000.88m/s1.5m/s38%146m
23:000.58m/s1.1m/s38%127m
Sat, Jul 11
24:000.75m/s1.3m/s37%110m
01:000.81m/s1.4m/s37%108m
02:000.85m/s1.5m/s34%8117m
03:000.89m/s1.5m/s31%16126m
04:000.93m/s1.6m/s28%24135m
05:000.87m/s1.6m/s46%22554m
06:000.81m/s1.5m/s64%20974m
07:000.75m/s1.4m/s82%19393m
08:001.1m/s1.6m/s84%20974m
09:001.4m/s1.7m/s86%22554m
10:001.8m/s1.8m/s88%24135m
11:001.5m/s1.7m/s91%22030m
12:001.2m/s1.6m/s93%19924m
13:000.95m/s1.4m/s96%17819m
14:001m/s1.6m/s91%19480m
15:001.1m/s1.8m/s86%21141m
16:001.3m/s1.9m/s82%22803m
17:001.2m/s1.7m/s86%23247m
18:001.1m/s1.4m/s91%23691m
19:001m/s1.1m/s96%24135m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

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