Northern Thailand — November 2026 Fishing Report
November is the month Northern Thailand's mahseer fishing community has been anticipating since the rivers ran high in June. The rivers are now at their optimal dry-season level — the mountain tributaries running clear, fast, and full in the boulder-bed channels that hold the mahseer populations that make Northern Thailand's fishing reputation. The Mae Taeng valley eco-lodges have their guide schedules full. The Mae Wang's shallow riffle sections are productive wading water for the first time since March. The cool-season air — morning temperatures dropping to 15–18°C in the mountain valleys by mid-November — creates the metabolic conditions that push mahseer into their most active feeding patterns of the year. November in the North is the beginning of Thailand's most distinctive sport fishing experience.
Water and Weather
November rainfall in Northern Thailand's mountain provinces is minimal — typically less than 30mm across the month. The rivers continue their gradual seasonal drop from October's post-monsoon levels toward the dry-season low-water marks of March and April. By mid-November, the Mae Taeng is running at approximately 60% of its monsoon maximum — perfect wading depth of 0.5–1.5 metres across the productive boulder-field sections, with defined pool and run structures offering clear sight-fishing opportunities.
Mountain temperatures in November are Northern Thailand's most distinctive characteristic for visiting anglers. Morning temperatures in the Chiang Mai valley drop to 18–20°C; in the upland valleys of Mae Taeng and Chiang Dao, early mornings can be genuinely cold at 12–15°C. These temperatures activate the mahseer's feeding cycle — fish that were sluggish in October's transitional warmth become aggressively competitive in November's cool water.
Bhumibol Reservoir continues its gradual controlled discharge through November. The dropping water level concentrates the reservoir's fish population around the remaining productive deep-water structures — dam face sections, submerged channel edges, rocky bay-mouth points. November fishing at Bhumibol is excellent precisely because of this concentration effect.
What's Biting Now
Mahseer (Tor tambroides — Humpback mahseer) — November is the primary mahseer month. The fish are active through a defined daily feeding pattern: a strong morning feeding window from 6:30 to 9:30 am, a midday rest period, and a late-afternoon feeding resumption from 3:30 to 5:30 pm. Anglers who are positioned in productive lies during these windows encounter fish reliably. Large mahseer — specimens of 3–8kg — are present in the Mae Taeng and Mae Wang, with fish to 15kg reported by guide services in the remote Mae Ping sections above Chiang Dao. Tactics: large spinners (Mepps, Blue Fox, Abu Reflex — 30–50g), deep-diving hard baits, and fly tackle with large streamers.
Mahseer (Tor sinensis — Chinese mahseer) — The smaller Chinese mahseer species is common in the boulder-field sections of the Mae Taeng and Mae Wang, averaging 0.5–2kg. Excellent sport on lighter spinning tackle and on fly. Their aggressive response to small spinners and wet flies makes them a reliable component of any Northern Thailand November session.
Giant Siamese carp (Catlocarpio siamensis) — Historically present in the large rivers of Northern Thailand, the giant Siamese carp is encountered occasionally in the deep pool sections of the Mae Ping and Mae Wang at Bhumibol Reservoir's upper arms. Paste baits and dough on appropriately heavy bottom rigs; fish reported to 40kg or more in the better reservoir sections.
Snakehead — The valley reservoir and large irrigation system snakehead population transitions to its cool-season behaviour in November: less surface-active than September's peak but concentrated in the remaining warm-water pockets — shallower, south-facing reservoir bays and the canal-feeder sections of irrigation systems. Slower retrieved rubber presentations and subsurface lures.
Striped catfish — The rivers' catfish populations remain active through November's cool conditions, feeding more aggressively in the current-break sections. Night fishing with paste and protein baits in the pool tails of the Mae Ping tributaries.
Hampala barb — Superb on light spinning tackle throughout November in both the rivers and the reservoir inlet zones. Fast-retrieved metal jigs and lipped minnows. A reliable and exciting alternative to mahseer fishing for lighter-tackle enthusiasts.
What to Target This Month
Top pick: Mae Taeng River mahseer fly or lure session with a guided program. The definitive Northern Thailand November experience. A properly guided Mae Taeng session begins with a 5:30 am pickup from Chiang Mai, a 40-minute drive to the valley, a wade-in start at first light, and three to four hours of fishing through the prime morning window. The guide's knowledge of the specific pool and run structures — which sections hold fish at November's water level, where the morning sun hits first to trigger feeding activity, how to position a fly or lure to reach a large mahseer in a deep pool tail — is the essential ingredient that transforms a November trip from interesting to extraordinary.
Second pick: Bhumibol Reservoir upper-arm jigging from a long-tail boat. The reservoir's mid-November condition — water dropping to reveal the productive structure while still maintaining enough depth to hold the season's best fish concentrations — makes this the optimal Bhumibol visit of the year. Hire a long-tail boat from the Wang Kaeo community on the reservoir's upper eastern arm and spend a full day working the submerged timber and rocky point structures with topwater lures (for snakehead), jerkbaits (for predatory catfish), and bottom rigs (for large carp).
Third pick: Pai River valley mahseer in Mae Hong Son Province. The Pai River, flowing through the spectacular mountain valley of Mae Hong Son Province, offers a more remote and less commercially guided mahseer fishing experience. The drive from Chiang Mai via the famous 1,864-bend mountain road to Pai (3 hours) delivers visitors to a valley system of outstanding natural beauty. Local accommodation in Pai town is basic but comfortable, and the river access points are accessible from town on a rented motorcycle.
What to Avoid
Avoid wading the deep section of the Mae Taeng's main channel without a qualified guide — the cool-season flow, while lower than monsoon levels, is still powerful in the boulder-bed channels and some crossing points require precise route knowledge. Avoid fishing in the areas of the Mae Ping designated as community conservation zones — these sections are locally managed and off-limits to external anglers without specific permissions. Avoid planning November Northern mahseer trips in the week around the Yi Peng Lantern Festival (mid-November in Chiang Mai) without advance hotel booking — the Chiang Mai area fills to capacity for this event and accommodation becomes difficult and expensive.
Northern Thailand's Lantern Festival and Mahseer Season
The Yi Peng Sky Lantern Festival transforms Chiang Mai into one of the world's most spectacular visual spectacles — thousands of floating lanterns released simultaneously into the November night sky. For the mahseer angler based in the Mae Taeng valley, the festival's light release is visible across the horizon from the valley floor on a clear November night. Timing a Northern Thailand mahseer trip to coincide with Yi Peng adds a cultural dimension that few other fishing destinations in the world can match — extraordinary river fishing by day, one of Asia's greatest visual festivals by night.
Venue Spotlight
Mae Taeng River and Valley (Chiang Mai Province) — The Mae Taeng valley 40km north of Chiang Mai is Northern Thailand's most developed mahseer fishing destination. Multiple eco-lodge operations offer guided fishing programs by the day, with accommodation in the valley reducing commute time from Chiang Mai and allowing early-start morning sessions. The valley's other attractions — elephant sanctuary visits, mountain views, Buddhist temples — provide activity for non-fishing companions. The mahseer season runs through the November to March window with November and December typically offering the best conditions.
Bhumibol Dam (Tak Province) — The main dam area offers both the tailwater section below the dam (productive for catfish and carp in current-influenced water) and boat access to the reservoir's upper arms. The dam community's pier operation hires out long-tail boats with local operators who know the productive November structures. The town of Tak is 80km from the dam via main highway and provides comfortable overnight accommodation for multi-day reservoir programs.
Mae Hong Son Province (Pai and Yuam Rivers) — For the adventurous angler, Mae Hong Son Province's mountain rivers offer unpressured mahseer fishing in some of Southeast Asia's most spectacular landscapes. The Pai River through the Pai town valley and the Yuam River further south both hold mahseer populations that are rarely visited by sport anglers. Basic accommodation in Pai town and Mae Sariang (Yuam River gateway) supports multi-day exploration programs.
Logistics in November
Chiang Mai is Northern Thailand's primary gateway with multiple daily Bangkok flights (70 minutes) and extensive accommodation infrastructure. Vehicle hire in Chiang Mai is straightforward; guided fishing lodge packages typically include transport. November is the transition from low-season to peak-season pricing in Chiang Mai — book accommodation early to avoid the Yi Peng Festival week premium. Mae Hong Son Province is accessible by scheduled flights from Chiang Mai (30 minutes) or by mountain road (5–6 hours). The practical Northern fishing itinerary combines 2 days in the Mae Taeng valley, 1 day at Bhumibol, and optionally 2 days in the Pai River area.
Looking Ahead to December
December is Northern Thailand's cool-season peak. Temperatures drop further (Chiang Dao mountain mornings can approach 8–10°C), mahseer feeding activity intensifies through the cooler water, and the rivers settle to their most productive dry-season structure. December is the month when Northern Thailand's mahseer guide services are fully booked, when the larger fish are most reliably catchable, and when the mountain valleys are at their most beautiful. Plan and book December Northern Thailand trips in November.
