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Rule Mirror Lake

Yakushima - Mirror Lake - Kyushu

Koseda, Kagoshima, Japan

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)
Wind Speed 100% failing
Wind Gusts 100% failing
Precipitation Chance 100% failing

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo

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 predicts mirror-calm water conditions for Kyushu's volcanic crater lakes, thermal spring ponds, and castle moats. We analyze wind speed, atmospheric stability, and tidal patterns to identify when reflections double the impact of the island's distinctive volcanic landscapes.

Kyushu's volcanic activity created numerous crater lakes in Kirishima highlands and Aso region, while onsen areas feature thermal-spring-fed ponds that rarely freeze. Historic Kumamoto Castle is surrounded by water features, and coastal areas offer sheltered bays for reflection photography. The subtropical climate means humidity-driven calm morning conditions.

What makes Kyushu reflection photography special:

  • Thermal spring mirrors - Lake Kinrinko in Yufuin fed by hot springs creates year-round reflections with Mount Yufu backdrop
  • Volcanic crater lakes - Kirishima highlands contain sacred lakes surrounded by volcanic peaks and mountain shrines
  • Castle moat reflections - Kumamoto Castle's defensive waters reflect reconstructed towers and original stone walls
  • Harbor twilight - Nagasaki's natural harbor provides sheltered water for city lights and hillside reflections

Lake Kinrinko delivers Kyushu's most reliable reflection photography—the spring-fed lake produces morning steam that lifts revealing perfect mirror conditions with Mount Yufu's twin peaks reflected. Best November through March before dawn when thermal mist settles leaving glass-calm water. Kirishima region contains sacred crater lakes surrounded by autumn color—arrive early as wind picks up by mid-morning. Kumamoto Castle's moats provide architectural reflections particularly beautiful when evening illumination begins. Nagasaki harbor at blue hour offers urban reflections with hillside buildings and city lights. Winter and early spring offer most consistent calm conditions.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Wind Speed
≤ 1.0m/s
Wind Gusts
≤ 2.0m/s
Precipitation Chance
≤ 10.0%
Visibility
≥ 5000.0m
Wed, Jul 8
14:005.6m/s6.4m/s26%19638m
15:006m/s6.9m/s39%19950m
16:005.9m/s7.1m/s39%22953m
17:005.7m/s7.3m/s39%19050m
18:005.6m/s7m/s39%23288m
19:005.2m/s7m/s53%24134m
20:005.5m/s7.2m/s68%24134m
21:005.7m/s7.5m/s82%23821m
22:005.8m/s7.7m/s82%24134m
23:005.7m/s7.6m/s82%19296m
Thu, Jul 9
24:005.5m/s7.9m/s82%23247m
01:006.1m/s8.3m/s87%18647m
02:006.5m/s8.6m/s93%23439m
03:006.5m/s8.7m/s98%18616m
04:006.7m/s8.6m/s79%18358m
05:006m/s8.6m/s59%18316m
06:006.1m/s8.8m/s39%18285m
07:006.2m/s8.7m/s53%18240m
08:006.5m/s8.8m/s68%18896m
09:006.7m/s9m/s82%23219m
10:007.1m/s9.1m/s68%24135m
11:007.1m/s9.2m/s53%21261m
12:007.2m/s9.1m/s39%20354m
13:007.3m/s9m/s53%18795m
14:006.9m/s8.5m/s67%24134m
15:006.9m/s8.6m/s82%23257m
16:006.4m/s8.2m/s62%23625m
17:006.3m/s8.1m/s42%24134m
18:006.3m/s8.2m/s22%18646m
19:006.4m/s8.5m/s36%23023m
20:006.3m/s8.7m/s50%23305m
21:006.6m/s9.1m/s64%18567m
22:006.7m/s9.4m/s70%23383m
23:006.9m/s9.6m/s76%21166m
Fri, Jul 10
24:007.2m/s9.7m/s82%23217m
01:007.5m/s9.8m/s76%20067m
02:007.9m/s10m/s70%23303m
03:007.8m/s10m/s64%22115m
04:007.5m/s10m/s50%23220m
05:007.7m/s11m/s36%23236m
06:007.4m/s10m/s22%23474m
07:007.6m/s11m/s38%23427m
08:007.5m/s11m/s53%23263m
09:007.7m/s11m/s69%21611m
10:007.9m/s11m/s54%18601m
11:008m/s12m/s40%17734m
12:008.3m/s12m/s26%19711m
13:008.8m/s12m/s38%23459m
14:009.1m/s13m/s50%22473m
15:009.3m/s13m/s62%20844m
16:009.2m/s13m/s60%21142m
17:008.9m/s12m/s58%20462m
18:008.6m/s12m/s56%19003m
19:008.6m/s12m/s61%19995m
20:008.6m/s12m/s66%20826m
21:008.9m/s12m/s72%21096m
22:009m/s12m/s57%20289m
23:009.3m/s13m/s43%20744m
Sat, Jul 11
24:009.1m/s13m/s28%20380m
01:009.3m/s13m/s35%19815m
02:009.3m/s13m/s42%21872m
03:009.5m/s13m/s48%21870m
04:009.8m/s13m/s38%21945m
05:0010m/s13m/s28%22020m
06:0010m/s13m/s18%22095m
07:0010m/s12m/s21%22074m
08:009.7m/s11m/s23%22054m
09:009.3m/s11m/s25%22034m
10:008.8m/s10m/s28%22734m
11:008.3m/s9.3m/s32%23434m
12:007.9m/s8.5m/s35%24135m
13:007.5m/s8.2m/s34%23461m
14:007.2m/s7.9m/s33%22788m
15:006.9m/s7.5m/s32%22114m
16:006.9m/s7.6m/s25%22122m
17:006.9m/s7.7m/s19%22130m
18:006.8m/s7.8m/s12%22138m
19:006.8m/s7.8m/s15%22804m
20:006.8m/s7.8m/s18%23469m
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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