Tokyo Bay Offshore fishing forecast
Tokyo Bay Offshore is a saltwater fishing spot in Kanto, Japan. Anglers here target Pacific Bluefin Tuna, Yellowtail Amberjack, Atlantic Bonito. The most productive months are typically May, June, July, August, September, October.
Today’s verdict
Trending up — 12 points above this spot’s 7-day average
Score confidence ±7 points, from 7 live signals
The statistical model disagrees with the physics model here today — treat this score with extra caution.
Current conditions
Live conditions are temporarily unavailable for this spot (last data Sep 2, 2026). Seasonal and regulation info below is unaffected.
What the score means at Tokyo Bay Offshore
Tokyo Bay Offshore currently scores 71 out of 100 (Good). Water temperature is 23.3 °C. 7 forecast signals are active in this score.
- Water temperature +25.0
- how close the water is to this species mix’s comfort band
- Chlorophyll +16.9
- plankton density — the base of the food chain
- Waves +9.0
- swell energy stirring the water column
- Wind +8.0
- surface chop, oxygen and bait drift
- Chlorophyll front +5.0
- a plankton edge — classic feeding line
- Thermocline +4.0
- a defined layer stacks fish at one depth
What’s biting now
The model expects today: pacific-bluefin-tuna, yellowtail-amberjack, thread-sail-filefish, japanese-spanish-mackerel, japanese-seabass, japanese-flathead, swordfish, silver-pomfret
Bite windows
Best months for Tokyo Bay Offshore:
Score history at this spot
8 days tracked at this exact location
Best recent day: 2026-07-30, 74/100
2 day(s) at 70+ in the tracked period
+3 points vs the same day last week
About this spot
Open coastal saltwater — conditions and safety depend heavily on the live wind, wave, and tide forecast, so check them before you head out.
Access & shore
Best reached by boat · offshore-only
What you can catch
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Thunnus orientalis
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Seriola lalandi
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Sarda sarda
Best months by species at Tokyo Bay Offshore
| Pacific Bluefin TunaThunnus orientalis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yellowtail AmberjackSeriola lalandi | ||||||||||||
| Atlantic BonitoSarda sarda |
Typical months; local seasons and closures apply.
Local regulations
| Species | Bag limit | Min size | Open season |
|---|---|---|---|
| Pacific Bluefin Tuna太平洋広域漁業調整委員会指示第49号（令和7年11月4日一部改正第52号、令和8年2月17日一部改正第54号）／日本海・九州西第79号／瀬戸内海第48号 | — | — | — |
| SMALL FISH (UNDER 30 kg) MAY NOT BE TAKEN AT ALL — the Fisheries Agency states 「小型魚（30kg未満）については、キャッチ＆リリースを前提とした場合であっても遊漁による採捕は禁止の対象となります」, i.e. even targeting them intending to release is prohibited. Large fish (30 kg and over) may be taken only during an open period. From April 2026 the bag limit is ONE large fish per person per period, the periods being Apr–May, Jun–Jul, Aug–Sep, Oct–Nov, Dec–Jan and Feb–Mar. A one-off annual notification (届出) is mandatory before you fish for bluefin, and every large fish taken must be reported with its tail-fork length and weight. THE FISHERY CLOSES WITHOUT WARNING: when the period tonnage is used up the wide-area fisheries adjustment commission publishes a prohibition period — in 2026 that happened 5–30 April, 24–31 May, 3–30 June and 3–31 July — and from July 2026 a closure takes effect the DAY AFTER it is published. Rules apply identically to boat, charter and shore (breakwater) fishing. If you have no scale and the fish might be under 30 kg, release it; landing an under-30 kg fish when the weight was unknown is still a violation. Check the JFA page on the day you fish. | |||
Licensing:
- saltwater-recreational — residents No general national licence for shore-based recreational sea fishing. What binds you is the prefectural fisheries adjustment rule (都道府県漁業調整規則): permitted gear and methods, prohibited areas, closed periods, per-species size limits and restrictions on fishing under lights are all set there. Do not enter posted commercial fishing-rights areas (漁業権). Recreational bluefin tuna additionally requires a national notification — see the species rule., non-residents Same rules apply. Tourists fishing from a charter boat fish under the operator's arrangements, but the prefectural rules still bind the angler. The Fisheries Agency publishes a leaflet for foreign recreational fishers.
- freshwater-recreational — residents Inland fishing requires a "yugyoken" (遊漁券) issued by the local fisheries cooperative for the specific river or lake, sold per-day or per-season at tackle shops and convenience stores near the water., non-residents Same yugyoken requirement applies to visitors.
FishRadar regulations are summaries for informational purposes only. Japanese recreational fishing rules are set at the prefectural level (都道府県漁業調整規則) and vary between neighbouring prefectures. Always verify with the prefecture and the local fisheries cooperative (漁業協同組合) before fishing, and never enter posted commercial fishing-rights zones. Bluefin tuna rules change during the season without notice — check the Fisheries Agency page on the day you fish.
Check Tokyo Bay Offshore before you go
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Nearby spots
Explore 10 more fishing spots within 454 km of Tokyo Bay Offshore.
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Tateyama Boso Peninsula
Sagami Bay Japan
Sagami Bay Kanagawa
Suruga Bay Japan
Oarai Pacific Ibaraki
Suruga Bay
Toyama Bay
Sea of Japan Niigata
Lake Biwa Japan
Osaka Bay Japan
Frequently asked questions
What fish can you catch at Tokyo Bay Offshore?
Anglers at Tokyo Bay Offshore target Pacific Bluefin Tuna, Yellowtail Amberjack and Atlantic Bonito.
When is the best time to fish Tokyo Bay Offshore?
The most productive months at Tokyo Bay Offshore are typically May, June, July, August, September, October.
What is the fishing forecast for Tokyo Bay Offshore right now?
Tokyo Bay Offshore currently scores 71 out of 100, based on live ocean and weather conditions — see the full breakdown on this page.
Can you fish Tokyo Bay Offshore from shore?
Tokyo Bay Offshore is best reached by boat; the scored water sits off a offshore-only.
Is the thermocline set up at Tokyo Bay Offshore right now?
Not strongly right now — the water column is fairly mixed, so fish are less depth-locked.
Fishing guides for this spot
- How to Catch Yellowtail Kingfish: Taming the Brown BomberHow to Catch Atlantic Bonito: Chasing the Autumn SpeedstersHow to Read Tides for Fishing
Forecasts, not guarantees — check local rules before you fish.