Crossing guide
What the Portsmouth to Bilbao crossing is like
Brittany Ferries’ route material gives roughly 33 to 36 hours for the southbound crossing, depending on the sailing. Spanish-route E-Flexer vessels can rotate, so the booking confirmation—not a generic guide—should determine cabin layout and pet facilities. Check both ship and arrival day before reserving onward accommodation.
Leaving Portsmouth
Portsmouth International Port sits directly off the M275, and Brittany Ferries describes it as under two hours from London in normal traffic — before city congestion. Dogs are not allowed in the terminal, so walk and water them before the final port lanes. Once through security you cannot leave the vehicle until directed.
Before you join the lanes
- Allow more than the sat-nav drive time — port approaches and check-in cut-offs are not motorway estimates.
- Check the booking confirmation for the final vehicle and foot-passenger deadlines; pet travellers often have an earlier one.
- Photograph or download the booking before you travel, because reception in a port queue is unreliable.
- Pack one small bag with medicines, chargers, a change of clothes and dog supplies: car-deck access is normally restricted at sea.
- Save the onward address offline and check whether tolls, low-emission zones or local driving rules affect the road ahead.
The passage
The working duration is typically about 33–36 hours and two nights. Conditions at the bay of Biscay passage can differ sharply from either harbour, which is why this guide samples three points rather than one coastal icon — a moderate wave with a long swell period feels quite different from short, steep seas. If anyone aboard is prone to seasickness, prepare before departure and choose a cabin position with comfort in mind.
A resilient plan
Plan two nights aboard and remember the destination terminal is Zierbena, not central Bilbao. Check the dated ship before comparing pet cabins, because the Spanish E-Flexer allocation can rotate. Give the first Spanish accommodation a flexible arrival window and save its Zierbena route offline. An alert is a prompt to check live inventory; price, cabin position and cancellation terms may all change before checkout.
Conditions
Weather along the route
A sailing-specific forecast is not yet available for that published sailing; current route conditions are shown.
Departure
Portsmouth departure
- Air / sea
- 17.5°C / 20.2°C
- Wind / gust
- 5.6 kn / 11.5 kn
- Wind direction
- SW (228°)
- Wave / period
- 0.3 m / 3.0 s
- Wave direction
- SW (227°)
Mid
Bay of Biscay passage
- Air / sea
- 18.2°C / 19.6°C
- Wind / gust
- 5.3 kn / 6.8 kn
- Wind direction
- W (278°)
- Wave / period
- 0.7 m / 7.2 s
- Wave direction
- WNW (282°)
Arrival
Bilbao arrival
- Air / sea
- 16.1°C / 22.9°C
- Wind / gust
- 3.7 kn / 4.1 kn
- Wind direction
- SSE (148°)
- Wave / period
- 0.8 m / 6.9 s
- Wave direction
- NNW (330°)
Provider data: Open-Meteo (licence); units and three-point presentation normalised by SailSoon.
For planning context only — not for navigation or decisions about whether a sailing will operate. Check Brittany Ferries for official sailing status.
Seven-day passage outlook
| Day | Sea state | Wave | Wind | Gust | Air |
|---|---|---|---|---|---|
| Wed2 SepToday | Slight | 1.0 m | 12.6 kn | 26.4 kn | 23°C |
| Thu3 Sep | Slight | 1.1 m | 11.3 kn | 23.1 kn | 24°C |
| Fri4 Sep | Moderate | 1.4 m | 14.8 kn | 28.0 kn | 34°C |
| Sat5 Sep | Moderate | 1.7 m | 15.6 kn | 18.7 kn | 28°C |
| Sun6 Sep | Moderate | 1.6 m | 16.4 kn | 28.4 kn | 27°C |
| Mon7 Sep | Moderate | 1.8 m | 17.2 kn | 23.7 kn | 24°C |
| Tue8 Sep | Moderate | 2.3 m | 25.8 kn | 46.7 kn | 24°C |
Daily maxima for planning only — not a forecast for any particular sailing, and not a statement about whether a crossing will operate.
Availability
Recently seen cabins
Historical cabin sighting
12 January 2027 · 22:45
Kennel
Ship shown when seen: Salamanca
Observed fare: £403
Observed by SailSoon on 27 August 2026 at 10:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorHistorical cabin sighting
24 November 2026 · 22:46
Pet-friendly cabin · Pet-friendly 4 berth outside cabin
Ship shown when seen: Galicia
Observed fare: £304
Observed by SailSoon on 26 August 2026 at 20:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorHistorical cabin sighting
1 November 2026 · 22:00
Pet-friendly cabin · Pet-friendly 4 berth inside cabin
Ship shown when seen: Galicia
Observed fare: £304
Observed by SailSoon on 25 August 2026 at 16:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorHistorical cabin sighting
6 September 2026 · 22:00
Pet-friendly cabin · Pet-friendly 4 berth inside cabin
Ship shown when seen: Galicia
Observed fare: £582
Observed by SailSoon on 24 August 2026 at 12:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorHistorical cabin sighting
9 March 2027 · 22:45
Standard (no pets)
Ship shown when seen: Salamanca
Observed fare: £363
Observed by SailSoon on 21 August 2026 at 22:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorHistorical cabin sighting
9 March 2027 · 22:45
Kennel
Ship shown when seen: Salamanca
Observed fare: £363
Observed by SailSoon on 21 August 2026 at 22:05 UTC.
Historical sighting—availability and price may have changed.
Check current availability with the operatorRecent sighting reserved for alerts
Members receive the useful details before a delayed historical example can appear here.
Create an account for member-first alertsRecent sighting reserved for alerts
Members receive the useful details before a delayed historical example can appear here.
Create an account for member-first alertsSeasonal context
Typical conditions through the year
1991–2020 averages — not a forecast. Long-term conditions provide planning context; a particular crossing can be very different.
Departure Portsmouth departure
| Month | Air °C | Wind mean / p90 kn | Prevailing wind | Wave mean / p90 m | Period s | Prevailing wave |
|---|---|---|---|---|---|---|
| January | 6.7 | 13.3 / 21.5 | WSW (250°) | 1.5 / 2.7 | 5.8 | SW (235°) |
| February | 6.3 | 12.5 / 20.4 | W (261°) | 1.4 / 2.5 | 5.7 | WSW (244°) |
| March | 7.5 | 11.6 / 19.1 | W (269°) | 1.1 / 2.2 | 5.5 | WSW (243°) |
| April | 9.3 | 10.3 / 16.9 | WSW (256°) | 0.9 / 1.7 | 5.2 | WSW (240°) |
| May | 12.2 | 10.1 / 16.6 | W (275°) | 0.8 / 1.6 | 4.8 | WSW (241°) |
| June | 14.9 | 9.7 / 15.9 | WSW (245°) | 0.8 / 1.4 | 4.7 | WSW (243°) |
| July | 17.0 | 9.6 / 15.6 | WSW (248°) | 0.8 / 1.4 | 4.5 | WSW (245°) |
| August | 17.3 | 9.7 / 15.7 | WSW (256°) | 0.8 / 1.4 | 4.5 | WSW (248°) |
| September | 15.6 | 10.5 / 17.1 | W (268°) | 0.9 / 1.7 | 4.7 | WSW (249°) |
| October | 12.9 | 12.1 / 19.4 | WSW (248°) | 1.3 / 2.3 | 5.2 | SW (232°) |
| November | 9.8 | 12.4 / 20.0 | W (261°) | 1.4 / 2.5 | 5.3 | WSW (241°) |
| December | 7.4 | 13.2 / 21.0 | W (261°) | 1.5 / 2.7 | 5.7 | WSW (239°) |
Mid-route Bay of Biscay passage
| Month | Air °C | Wind mean / p90 kn | Prevailing wind | Wave mean / p90 m | Period s | Prevailing wave |
|---|---|---|---|---|---|---|
| January | 10.0 | 17.3 / 26.8 | WSW (258°) | 3.2 / 5.3 | 9.8 | W (280°) |
| February | 9.4 | 16.3 / 25.9 | WNW (285°) | 3.0 / 4.9 | 9.7 | WNW (284°) |
| March | 10.1 | 14.8 / 23.5 | NW (324°) | 2.5 / 4.0 | 9.3 | WNW (286°) |
| April | 11.3 | 13.7 / 21.8 | NNW (328°) | 2.1 / 3.3 | 8.5 | WNW (288°) |
| May | 13.6 | 12.8 / 19.9 | NNW (330°) | 1.7 / 2.6 | 7.7 | WNW (286°) |
| June | 16.3 | 12.2 / 18.9 | NW (316°) | 1.5 / 2.3 | 7.3 | WNW (289°) |
| July | 18.0 | 12.0 / 18.4 | NW (306°) | 1.4 / 2.1 | 7.0 | WNW (289°) |
| August | 18.5 | 11.6 / 18.3 | NW (312°) | 1.4 / 2.3 | 7.2 | WNW (289°) |
| September | 17.3 | 12.5 / 20.0 | NNW (330°) | 1.7 / 2.8 | 8.0 | WNW (291°) |
| October | 15.3 | 14.4 / 22.8 | WSW (252°) | 2.2 / 3.6 | 8.5 | W (281°) |
| November | 12.7 | 16.2 / 25.0 | W (268°) | 2.7 / 4.3 | 9.0 | WNW (283°) |
| December | 10.8 | 17.4 / 26.8 | WSW (256°) | 3.0 / 4.9 | 9.4 | W (279°) |
Arrival Bilbao arrival
| Month | Air °C | Wind mean / p90 kn | Prevailing wind | Wave mean / p90 m | Period s | Prevailing wave |
|---|---|---|---|---|---|---|
| January | 9.8 | 7.4 / 13.0 | SW (220°) | 2.1 / 3.5 | 10.2 | NW (312°) |
| February | 9.9 | 7.1 / 12.6 | WSW (239°) | 2.0 / 3.3 | 10.1 | NW (314°) |
| March | 11.7 | 6.7 / 12.0 | WSW (246°) | 1.8 / 2.9 | 9.5 | NW (315°) |
| April | 13.0 | 6.3 / 11.0 | WNW (295°) | 1.5 / 2.4 | 8.7 | NW (317°) |
| May | 15.6 | 5.7 / 9.9 | NNW (334°) | 1.2 / 1.9 | 7.7 | NW (319°) |
| June | 18.3 | 5.1 / 8.7 | N (353°) | 1.0 / 1.6 | 7.2 | NW (320°) |
| July | 20.2 | 5.0 / 8.3 | N (353°) | 1.0 / 1.5 | 7.0 | NW (320°) |
| August | 20.9 | 4.9 / 8.3 | N (357°) | 1.0 / 1.6 | 7.2 | NW (321°) |
| September | 19.0 | 5.2 / 9.1 | NW (323°) | 1.3 / 2.0 | 8.2 | NW (321°) |
| October | 16.5 | 6.3 / 11.2 | SSW (206°) | 1.5 / 2.5 | 8.9 | NW (314°) |
| November | 12.7 | 7.4 / 12.5 | SW (225°) | 1.9 / 3.0 | 9.5 | NW (313°) |
| December | 10.5 | 7.5 / 12.8 | SSW (212°) | 2.0 / 3.3 | 9.7 | NW (311°) |
Sea-surface temperature is omitted because the ERA5 reanalysis behind this baseline does not carry it historically. Current sea temperature is shown in the conditions panel above.
Provider data: Open-Meteo (licence), using ERA5 weather and ERA5-Ocean marine reanalysis; monthly means, p90 values and prevailing directions calculated by SailSoon for 1991–2020.
Vessels
Ships commonly used on this route
Primary route profile
Galicia
Galicia is one of the modern ships created for the longer Portsmouth–Spain service. Brittany Ferries presents the vessel around a north-west Spain theme, carried through its public rooms and cabin design. For a route guide, the practical points are the broad choice of en-suite accommodation, video-on-demand in many cabins and the mix of standard, Club and Commodore categories. Its presence on a route should still be treated as typical rather than fixed: maintenance and timetable changes can bring a different vessel. Check the ship named on the dated booking before relying on a particular room layout or facility.
Pet context: The official accommodation guide lists inside and outside pet-friendly cabins with wipe-clean flooring; availability is limited and must be selected for the actual sailing.
Official sources and review date
Facts reviewed 2026-08-11.
Also commonly used
Salamanca
Salamanca is an LNG-powered cruise ferry designed for Brittany Ferries’ Portsmouth–Spain operation and is the sister ship that followed Galicia. Its interior identity draws on the Spanish city whose name it carries, while the passenger offer centres on modern cabins and spaces intended for a long sea passage. The range includes standard accommodation and premium options, so the exact cabin specification matters more than the ship name alone. Sailing assignments can change for operational reasons; use this profile as preparation for a likely vessel, then confirm the operating ship and accommodation shown in the final booking details.
Pet context: Brittany Ferries lists pet-friendly inside cabins on Salamanca, including laminate flooring and room for a standard animal bed; book the pet option explicitly.
Official sources and review date
Facts reviewed 2026-08-11.
Also commonly used
Santoña
Santoña is the third of the recent ships developed especially for Brittany Ferries’ services to Spain, following Galicia and Salamanca. The operator describes a contemporary passenger environment whose visual references come from the Cantabrian coastal town of the same name. That makes it a familiar candidate on the longer Spanish crossings, with accommodation intended for overnight travel and a range of onboard spaces. The timetable may swap vessels, so this description is not a promise that Santoña will operate a chosen departure. Confirm the named ship, cabin category and any included services on the booking before travel.
Pet context: The ship’s official booking material includes pet-friendly accommodation, but pet places and cabin types must be checked and reserved on the dated sailing.
Official sources and review date
Facts reviewed 2026-08-11.
Ships and schedules can change; check your booking for the operating vessel.
Landfall
Arriving in Bilbao
The ferry lands at Zierbena, about 21 kilometres from Bilbao. Drivers can join routes for Bilbao, the Basque Country or destinations farther south without entering the city. Leave slack for unloading and border checks, and choose a dog break away from moving port traffic: the immediate harbour is operational rather than a promenade. Zierbena is useful for motorway access but is about 21 kilometres from central Bilbao. Decide in advance whether the first stop is the city, the Basque coast or a southbound road route.
Sources for route facts
- Brittany Ferries: Portsmouth to Bilbao (reviewed 2026-08-11)
- Brittany Ferries: Portsmouth port guide (reviewed 2026-08-11)
- Brittany Ferries: Bilbao port guide (reviewed 2026-08-11)
- Brittany Ferries: travelling with pets (reviewed 2026-08-11)
- GOV.UK: getting an animal health certificate (reviewed 2026-08-11)
Dogs aboard
Planning this ferry with a dog
The longest crossing in this guide, landing at Zierbena rather than Bilbao. Settle the EU paperwork before Portsmouth, then plan for two nights and an exposed Basque harbour at the far end.
- Documents
- GOV.UK advises GB residents to obtain an Animal Health Certificate from an official veterinarian for EU entry. It is issued before travel and has a limited entry window.
- Rabies and microchip
- Confirm the microchip record and a valid rabies vaccination against current GOV.UK guidance and the destination’s rules. EU pet rules changed in 2026, so do not assume an older EU pet passport still works.
- At Portsmouth
- Dogs are not admitted to the passenger terminal, so complete the walk before joining the final port lanes.
- On board
- Two nights aboard. Confirm whether the booked E-Flexer provides a pet-friendly cabin or kennel, and pack measured food, water, absorbent material and familiar bedding in the bag taken upstairs.
- Muzzle
- Brittany Ferries requires a muzzle whenever the dog is outside the car, kennel or pet-friendly cabin. Practise with it before travel.
Border and carrier rules change. Confirm every item against the official sources listed above and your vet before you travel.
Questions
Frequently asked questions
How long is the ferry from Portsmouth to Bilbao?
The useful planning figure is typically about 33–36 hours and two nights. Check the dated Brittany Ferries timetable because individual crossings can differ.
Which ship operates from Portsmouth to Bilbao?
Galicia (UK ↔ Spain) or Salamanca (UK ↔ Spain) or Santoña (UK ↔ Spain) are associated with this corridor. Operational substitutions happen, so the ship shown on the booking is the one to use for cabin and pet-facility details.
Can I take a dog from Portsmouth to Bilbao?
Pet travel is offered on relevant sailings, but the available arrangement varies by ship. Select a confirmed pet-friendly cabin, kennel or other offered option and follow current carrier and border rules.
What weather should I check for the Portsmouth to Bilbao crossing?
Compare departure, mid-route and arrival conditions, especially wind, gusts, wave height and swell period. Forecasts are guidance only; the operator makes operational decisions.
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