Ukon Denchi, Japan
No town nearby. No bookable town within 60 km: the nearest, Taipei, is 273 km away. Nearest airport: ISG (ISG), 21 km.
About Ukon Denchi
A reef dive. It goes down to 20 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces SE: swell from the SE reaches it, and wind from the NW blows out to sea. No dive centre within 10 km, the nearest 10 km away. The sea is about 23°C in February, its coldest month (5 mm wetsuit), and 30°C in August, its warmest (rash vest or 1 to 2 mm). For experienced divers the best months are usually January, February, March and April, with about 7 good days in 7. From the weather of past years. No town nearby. No bookable town within 60 km: the nearest, Taipei, is 273 km away. Nearest airport: ISG (ISG), 21 km. Within 5 km we also list 1 dive site.
- What it is Reef.
- How deep Down to 20 m.
- Getting in From a boat.
- Who it suits Suits Advanced divers and up, as a dive guide states it.
- Dive centres No dive centre within 10 km, the nearest 10 km away.
Facts: verified.
Dive centres nearby
HAMAマリンサービス 10 km
石垣島トータルマリン 10 km
Prime Scuba Ishigaki 12 km
海講座 20 km
ファンシー 22 km
Viking Scuba 22 km
Sea Water 22 km
あくあの時間ダイビングサービス 22 km
The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits
Water about 28°C: 3 mm wetsuit. Typical sea temperature for the time of year, not a forecast.
Visibility about 10 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Jan, Nov and Dec (about 15 m).
This week's visibility, the current and the life no free forecast gives. Ask a dive centre before you book.
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From Chicago: about 25 h 50 door to door, one way. An estimate; the journey never changes the score.
Fly. Chicago O'Hare International Airport (ORD) to ISG, changing at Hong Kong International Airport (HKG).
See flights ORD → ISG · Skyscanner from about £675 returnAdGetting there. 40 min from the airport to Ukon Denchi.
Accommodation.
No town nearby
No bookable town within 60 km: the nearest, Taipei, is 273 km away. Nearest airport: ISG (ISG), 21 km.
Hire and lessons.
Dives and courses in Ukon Denchi · GetYourGuideAdDive gear hire in Ukon Denchi · GetYourGuideAd
Where it is
Ukon Denchi on Google Maps · Directions
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Forecast
Best on Sun 18: Sea 0.6 m. Wind 10 kn gusting 15.
The score for experienced divers, coloured as on the area pages:GoodFairPoor
| Day | Score | Sea | Wind | Gusts |
|---|---|---|---|---|
| Sun 18Oct | 80, good | 0.6 m | 10 kn | 15kn |
| Mon 19Oct | 80, good | 0.5 m | 11 kn | 14kn |
| Tue 20Oct | 80, good | 0.7 m | 11 kn | 15kn |
| Wed 21Oct | 72, good | 1.5 m | 15 kn | 19kn |
| Thu 22Oct | 0, poor | 3.1 m | 29 kn | 41knboats in |
| Fri 23Oct | 0, poor | 3.8 m | 43 kn | 67knboats in |
| Sat 24Oct | 0, poor | 2.4 m | 37 kn | 58knboats in |
| Sun 25Oct | 80, good | 1.0 m | 14 kn | 28kn |
| Mon 26Oct | 80, good | 0.7 m | 8 kn | 13kn |
| Tue 27Oct | 80, good | 0.6 m | 1 kn | 6kn |
| Wed 28Oct | 0, poor | – | – | – |
Day scores are the conditions out of 80, from the two best daylight readings: a morning and an afternoon dive. Sea is the open water's waves near the site, in metres, halved for a sheltered site. Wind and gusts are in knots (10 kn is about 19 km/h); "boats in" marks gusts that keep dive boats in. This week's visibility, the current and the life no free forecast gives.
The season
Good diving days in a typical week, each month, for experienced divers, from 2016 on (ERA5 history scored the same way).
- Jan7of 7
- Feb7of 7
- Mar7of 7
- Apr7of 7
- May7of 7
- Jun7of 7
- Jul7of 7
- Aug7of 7
- Sep7of 7
- Oct7of 7
- Nov7of 7
- Dec7of 7
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Rough cost
About £900–£1,815 each for 6 nights, 2 people sharing. A guide from typical prices, not a quote. No town nearby, so no stay is in it. Dives are not priced yet: we have no sourced price for a guided dive, so they are not in it.
- Flights £675–£1,400
- To the UK airport £35–£65
- Taxi £35–£60
- Food £155–£290
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