Andaman Coast — June 2026 Fishing Preview
Let's be direct about what June means on the Andaman: the offshore is closed for most practical purposes, sea conditions are genuinely dangerous for smaller vessels, and the postcard-perfect beaches of Phuket and Krabi are doing their best under a solid curtain of southwest monsoon cloud. That is the honest picture, and any report that tells you otherwise is selling you something. But the Andaman in June is not a write-off. Shore-based options for anglers who know how to read exposed rock conditions are real. The inland fishery at Cheow Lan Lake in Khao Sok National Park is legitimately excellent. And the brackish back channels of Phang-Nga Bay are quietly productive for species that the charter-fishing crowd never encounters at all. If you come to the Andaman in June expecting offshore, you'll be disappointed. Come with a different plan and you'll fish well.
Water and Weather
The southwest monsoon reaches the Andaman coast by late May and is fully established through June. Expect 300–400mm of rainfall in Phuket and Krabi provinces during the month — roughly double the national average. Seas build to 3–4 metres in exposed areas, with occasional larger swells during active weather systems. The Meteorological Department issues advisories for vessels under 300 tonnes throughout this period, and most charter boats respect those advisories or have their own stricter operational thresholds.
The coast itself changes character. Normally turquoise water goes green and silty. Popular beaches are often empty. Longboat taxi services between islands reduce frequency or suspend entirely depending on conditions. The landscape is dramatic and genuinely beautiful in a way that peak-season Phuket never is — just not compatible with offshore fishing.
Inland, Cheow Lan Lake sits within the Khao Sok caldera and behaves like a separate weather system. It receives heavy rainfall — often exceeding 600mm in June — but the surrounding mountains provide wind shelter and the lake surface remains calm even when the coast is rough. Water temperatures at Cheow Lan in June run 26–28°C at the surface, excellent for most freshwater species.
What's Biting Now
Grouper from rock and reef — The exposed limestone headlands at Laem Phromthep (Phuket's southernmost point) and the rocky outcrops along Krabi's southern coast hold resident grouper populations that don't leave when the offshore charters do. Anglers fishing bottom rigs with fresh squid and cuttlefish under the rocky ledges connect with coral grouper and flowery grouper in the 1–4kg range. Heavier rock-fishing setups of 30–50lb with thick fluorocarbon traces are appropriate.
Snapper (various species) — The same rocky shore environments hold two-banded snapper, red emperor, and threadfin jobfish. Wire leaders are less important than for grouper, but 40lb monofilament or fluorocarbon is the minimum to cope with the abrasive rock terrain.
Barramundi in brackish channels — Phang-Nga Bay, particularly the upper reaches toward Phang-Nga town and the mangrove channels that drain into it, holds wild barramundi year-round. June rising water gives barra access to flooded mangrove root systems they can't reach in the dry season. Anglers running small longtail boats through these channels with 90–120mm shallow-diving lures worked around mangrove roots connect with barra in the 2–6kg range. This fishing is almost entirely unknown to the international fishing audience and that is entirely to your benefit.
Mangrove jack — Alongside barramundi in the Phang-Nga channels. A more aggressive, harder-fighting fish for its size; takes lures and live bait confidently. The 1–3kg range is typical but fish to 5kg are encountered.
Cheow Lan featherback — The lake holds good populations of clown featherback and similar species in the submerged forest areas that line much of the shoreline. Light spinning tackle with small lures and bait presentations produce them reliably in the dawn period.
Cheow Lan snakehead — Giant snakehead are present throughout the lake but are most accessible around the flooded limestone karst margins where tree roots and rock provide cover. Surface lures and soft frogs in the early morning are standard.
Cheow Lan striped catfish — Bottom bait rigs fished near the dam structure and in the deeper channels of the lake produce striped catfish throughout the day. A reliable option when surface and mid-water action slows.
What to Target This Month
Top pick: Cheow Lan Lake featherback and snakehead. The combination of genuinely spectacular scenery, productive fishing in a relatively uncrowded environment, and the complete absence of sea conditions makes Cheow Lan the obvious answer for the Andaman region in June. The lake's flooded submerged forest provides structure that concentrates fish, and the early morning fishing from the raft houses — before the guide tours from the national park jetty arrive — is genuinely atmospheric.
Second pick: Phang-Nga Bay barramundi and mangrove jack. Hire a longtail from the bay pier near Phang-Nga town and have the driver take you into the upper mangrove channels. Bring your own spinning gear and lures — 10–20lb class rods with quality 4–8g lures — and plan 3–4 hours. This is bespoke, wild, and excellent value.
Third pick: Rocky headland grouper at Laem Phromthep. Requires rock-fishing experience, appropriate footwear, and ideally a fishing partner. The south end of Phuket sees concentrated current during the monsoon that pushes bait past the headland, and the grouper know it. Fish on an incoming or outgoing tide in the early morning or late afternoon.
What to Avoid
The offshore is genuinely off. Avoid approaching operators who claim they can safely run offshore trips throughout June — the sea state makes this unsafe for typical 6–8 metre charter boats. Avoid fishing exposed rock platforms alone; a rogue wave on an Andaman limestone headland in monsoon season is not something to discover the hard way. The famous dive sites around Phi Phi and the Similan Islands are inaccessible; if you're combining diving and fishing, shift that trip to October.
The Andaman's monsoon sea conditions are not exaggerated by charter operators. Thai Meteorological Department marine advisories for June typically warn of 3–4 metre swells in exposed areas and advise small vessels to stay ashore. Always check the daily forecast and heed official advisories — the inland and shore-based alternatives are genuinely excellent and not worth gambling your safety to avoid.
Venue Spotlight
Cheow Lan Lake / Ratchaprapha Reservoir (Khao Sok National Park, Surat Thani) — The most important June fishing venue on the Andaman side by a significant margin. The lake is formed by the Ratchaprapha Dam and sits about 60km from the coast, well inland and completely sheltered from monsoon seas. Several floating raft house operations on the lake offer accommodation and guided fishing — Khao Sok Riverside and Art's Riverview Lodge are among the established options. Book at least two weeks ahead for June.
Phang-Nga Bay mangrove channels (Phang-Nga Province) — The bay's upper reaches near Phang-Nga town are accessible by road and longtail hire. The tourism infrastructure here is minimal compared to Phuket, which works in the angler's favour. The fishing in the brackish channels is entirely wild and the barra and jack population shows no signs of pressure.
Laem Phromthep and Hat Nai Han rocky shore (southern Phuket) — The southernmost accessible point in Phuket with consistent bottom-fishing potential from exposed rock. Best fished early morning at low or mid-incoming tide. The surrounding tourist infrastructure means accommodation is never a problem, even in June when hotel rates drop significantly.
Logistics in June
This is the single most affordable month to visit Phuket and Krabi if accommodation cost is a factor. Hotels that run 5,000–8,000 baht per night in peak season drop to 1,500–3,000 baht in June without difficulty. Flights from Bangkok are half the dry-season price. Restaurants and beach cafes are open but quiet. The absence of tourist crowds is a practical advantage — no queues, faster service, better parking.
The road to Khao Sok from Surat Thani or Phuket is good sealed highway. The final stretch to the lake pier involves some rough road through the park; a pickup or SUV is more comfortable but not strictly necessary in dry spells between rain events. Allow 2.5–3 hours from Phuket airport. The raft houses on Cheow Lan provide all meals and basic equipment hire — bring your own quality rods and lures but don't worry about camping gear.
Looking Ahead to July
July on the Andaman stays firmly offshore-closed, but the inland and shore options consolidate. Cheow Lan Lake's water level continues to rise, expanding the flooded forest that makes it such productive snakehead and featherback habitat. Phang-Nga Bay's mangrove channels become increasingly productive as the sustained monsoon water raises levels through the entire tidal flat system. For anyone with the patience to fish June and July on the Andaman, the reward is some of Thailand's least-pressured wild freshwater fishing within reach of a fully functional tourist infrastructure running at a fraction of peak-season cost.
