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Underwater Photo Conditions

Photo score ranking (Visibility 40pts + Sunlight 40pts + Water Temp 20pts = 100)

1
YonaguniYonaguni
60Good
14.7~24.2m|40/40
🌦️Rain|0/40
24.7°C|20/20
2
IshigakiOkinawa
60Good
16~22.4m|40/40
🌦️Rain|0/40
26°C|20/20
3
IOP (Izu Oceanic Park)IOP
50Fair
13.7~17.2m|40/40
🌧️Rain|0/40
16.1°C|10/20
4
KeramaKerama
50Fair
11.7~22.2m|40/40
🌧️Rain|0/40
21.1°C|10/20
5
Amami OshimaAmami
50Fair
11.7~26.8m|40/40
🌧️Rain|0/40
20.2°C|10/20
6
HachijojimaHachijojima
50Fair
12.2~20.7m|40/40
🌧️Rain|0/40
19.7°C|10/20
7
YakushimaYakushima
50Fair
13.2~21.2m|40/40
🌧️Rain|0/40
20.5°C|10/20
8
FutoFuto
35Fair
7.4~13.8m|25/40
🌦️Rain|0/40
16.1°C|10/20
9
KushimotoKushimoto
35Fair
9.6~12.2m|25/40
🌦️Rain|0/40
19.3°C|10/20
10
KumomiKumomi
35Fair
8.8~13m|25/40
🌧️Rain|0/40
16.1°C|10/20
11
ShirahamaShirahama
35Fair
9.2~13.3m|25/40
🌧️Rain|0/40
19.2°C|10/20
12
OkinoshimaKushimoto
35Fair
9~14m|25/40
🌧️Rain|0/40
19.1°C|10/20
13
TagoshimaTago
35Fair
8.8~12.6m|25/40
🌧️Rain|0/40
21.3°C|10/20
14
BentenjimaKushimoto
35Fair
8.5~12.7m|25/40
🌧️Rain|0/40
18.9°C|10/20
15
ItoTateyama
30Fair
7.6~18.5m|25/40
🌧️Rain|0/40
15.5°C|5/20
16
TajiriTajiri
30Fair
9.5~19.1m|25/40
🌦️Rain|0/40
11.7°C|5/20
17
KashiwajimaKashiwajima
20Poor
7.9~11.1m|10/40
🌧️Rain|0/40
17.6°C|10/20
18
MiyakejimaMiyakejima
20Poor
8.3~11.1m|10/40
🌧️Rain|0/40
19.2°C|10/20
19
KannouraMuroto
20Poor
6.1~9.6m|10/40
🌧️Rain|0/40
18.9°C|10/20
20
MurotoMuroto
20Poor
6.9~11.7m|10/40
🌦️Rain|0/40
18.8°C|10/20
21
HirasawaHirasawa
15Poor
6.6~9.3m|10/40
🌧️Rain|0/40
15.9°C|5/20
22
EchizenEchizen
15Poor
3.7~9.9m|10/40
🌦️Rain|0/40
12.9°C|5/20
23
MikomotoMikomoto
15Poor
7.5~9.5m|10/40
🌦️Rain|0/40
15.8°C|5/20
24
OmijimaOmijima
15Poor
5.2~9.2m|10/40
🌧️Rain|0/40
13.7°C|5/20
25
KoganezakiKoganezaki
15Poor
4.2~7.5m|10/40
🌧️Rain|0/40
15.8°C|5/20
26
FutoneTago
15Poor
7.3~11.1m|10/40
🌧️Rain|0/40
15.6°C|5/20
27
ShirasakiTago
15Poor
5.3~11.2m|10/40
🌧️Rain|0/40
14.9°C|5/20
28
SadoSado
15Poor
4.2~12.6m|10/40
🌦️Rain|0/40
12.3°C|5/20
29
女川女川
15Poor
5.4~13.4m|10/40
🌦️Rain|0/40
12.2°C|5/20
30
TagoTago
10Poor
6.5~10.4m|10/40
🌧️Rain|0/40
---|0/20
How scores are calculated (click to expand)

Visibility (max 40pts)

  • 15m+ → 40pts
  • 10-15m → 25pts
  • 5-10m → 10pts
  • <5m → 0pts

Sunlight (max 40pts)

  • Clear/sunny → 40pts (strong underwater light, vivid colors)
  • Partly cloudy → 25pts (soft light, good for macro)
  • Overcast → 10pts (dim but strobe compensates)
  • Rain → 0pts (dark surface, insufficient light underwater)

Water Temp (max 20pts)

  • 22-28°C → 20pts (comfortable, extended shooting time)
  • 16-22°C or 28°C+ → 10pts (slightly cold/warm)
  • <16°C → 5pts (cold fingers make camera operation difficult)