Japan

Koganei

Koganei is a city in the Tokyo region of Japan. It sits inland and is not a coastal diving destination, but the broader Tokyo metropolitan area provides access to multiple dive centers and coastal day trips within a convenient radius. Nearby freshwater options include Lake Hinuma, which offers limited freshwater diving opportunities outside the city itself. If you’re visiting for other attractions, you can coordinate with local dive centers for nearby trips or courses, but there are no notable dive sites within the city itself.

Essential information for traveling in Japan

About Japan

Sea
Philippine Sea, Japan Sea/East Sea, Seto Naikai...
Timezone
Asia/Tokyo
Languages
JA
Demonym
Japanese
Phone prefix
+81

Practicalities

Currency
JPY
Voltage
110
Plug type
Type A
Airports
OKA HND NRT KIX NGO

Diving specifics

Temperature
°C
Depth units
meters
Pressure
bar
Regulators
DIN Yoke (INT)

Dive sites and dive centers around Koganei

Nearby Dive Sites (2)

Nearby Dive Centers (1)

Nearby cities for scuba diving around Koganei

The best time to dive in Koganei

The best months to dive in Koganei are from July to August. Temperatures are confortable (28-30°C), currents are mild and the visibility is at its best.

Excellent Good Fair Mitigated
01 - Jan.
5 °C 12 °C 9/10
02 - Feb.
5 °C 11 °C 9/10
03 - Mar.
9 °C 12 °C 6/10
04 - Apr.
14 °C 15 °C 7/10
05 - May
18 °C 19 °C 4/10
06 - Jun.
24 °C 22 °C 6/10
07 - Jul.
28 °C 27 °C 7/10
08 - Aug.
30 °C 28 °C 7/10
09 - Sept.
26 °C 27 °C 5/10
10 - Oct.
18 °C 23 °C 6/10
11 - Nov.
11 °C 18 °C 9/10
12 - Dec.
7 °C 14 °C 8/10

Based on last year's weather. Scores compare months for this destination only and are indicative. A mitigated month may still suit many divers.

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