Northern Portugal · Portugal

Porto Douro Mouth fishing forecast

54 Good of 100

Porto Douro Mouth is a saltwater fishing spot in Northern Portugal, Portugal. Anglers here target Atlantic Bluefin Tuna, Atlantic Bonito, Atlantic Mackerel. The most productive months are typically June, July, August, September, October.

Quick answer

Best monthsJune, July, August, September

Top speciesAtlantic Bluefin Tuna, Atlantic Bonito, Atlantic Mackerel

Score now54/100

Local rulesPortugal

Today’s verdict

Trending down — 5 points below this spot’s 7-day average

Score confidence ±4 points, from 8 live signals

The statistical model disagrees with the physics model here today — treat this score with extra caution.

Helping the score most

Water temperature+25.0Chlorophyll+12.6Waves+7.9

Pressure trend

Pressure stable — fish feeding on their usual rhythm

Next solunar peak

major 09:25

Current conditions

Live conditions are temporarily unavailable for this spot (last data Aug 23, 2026). Seasonal and regulation info below is unaffected.

What the score means at Porto Douro Mouth

Porto Douro Mouth currently scores 54 out of 100 (Good). Water temperature is 18.0 °C. 8 forecast signals are active in this score.

Water temperature +25.0: how close the water is to this species mix’s comfort band
Chlorophyll +12.6: plankton density — the base of the food chain
Waves +7.9: swell energy stirring the water column
Current +4.8: moving water concentrates bait
Chlorophyll front +3.9: a plankton edge — classic feeding line
Wind +3.6: surface chop, oxygen and bait drift

What’s biting now

The model expects today: bluefin-tuna, atlantic-mackerel, comber, european-squid, black-scorpionfish, cuttlefish, chub-mackerel, bogue

[object Object] — Protected here — release immediately

Bite windows

Moon

Waxing Gibbous · 82% lit

Solunar day rating

50 / 100

Best months for Porto Douro Mouth:

Score history at this spot

7 days tracked at this exact location

Best recent day: 2026-08-11, 65/100

About this spot

Water type

Sea

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

Fishable from shore · offshore-only

What you can catch

Atlantic Bluefin Tuna

Thunnus thynnus
Atlantic Bonito

Sarda sarda
Atlantic Mackerel

Scomber scombrus

Best months by species at Porto Douro Mouth

Atlantic Bluefin TunaThunnus thynnus
Atlantic BonitoSarda sarda
Atlantic MackerelScomber scombrus

Typical months; local seasons and closures apply.

Local regulations

Direção-Geral de Recursos Naturais, Segurança e Serviços Marítimos (DGRM)

Portugal

Licensing:

saltwater-recreational — residents A recreational ("lúdica") fishing licence from DGRM is mandatory. Separate categories for shore ("apeada"), on-board ("embarcada") and underwater ("submarina") fishing, with daily/monthly/annual options. Obtain it via the Balcão Eletrónico do Mar (bmar.pt)., non-residents Non-residents need the same DGRM recreational licence; apply online via the Portal BMar (bmar.pt).

Some rules may have changed since our last verification — always confirm with the authority before you fish.

FishRadar regulations are summaries for informational purposes only. Portuguese recreational fishing rules are set by DGRM and EU regulations, and the Azores and Madeira autonomous regions may apply additional measures. Always verify with DGRM at dgrm.pt before fishing.