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France · 43.49°, -1.47° · 6 m

Bayonne

Bayonne, France
Photo: Daniel VILLAFRUELA, CC BY-SA 3.0, via Wikimedia Commons

Reaching Bayonne from London emits 26.5 kg CO₂e return by rail (9h 48m each way) against 226 kg by air — 9× the carbon. It averages 21.6 °C in August and 8.6 °C in January.

Bayonne (Baiona in Basque and in Occitan language) is a town in Pyrénées-Atlantiques in the southwest corner of France, part of the Basque region straddling the border with Spain. — Wikivoyage, CC BY-SA 4.0

When to go: Bayonne is warmest in August (21.6 °C), sunniest in May (11.5 h a day), driest in July; coldest in January (8.6 °C). Month by month

26.5kg CO₂e return by rail, from London
226kg CO₂e return by air, from London
11.5hours of sunshine a day in May, its brightest month

Getting there

Return carbon and one-way journey time to Bayonne. Times are modelled.
FromDistanceBy railRail timeBy airAir time
Amsterdam1,094 km32.3 kg10h 12m275 kg5h
Barcelona379 km11.2 kg7h95.3 kg4h
Berlin1,489 km44.0 kg15h 36m375 kg5h 30m
Birmingham1,000 km39.5 kg12h 36m252 kg4h 48m
Bristol889 km40.2 kg12h 48m224 kg4h 42m
Brussels928 km27.4 kg8h 18m234 kg4h 42m
Cardiff897 km43.5 kg13h 6m226 kg4h 42m
Copenhagen1,684 km49.7 kg21h 6m424 kg5h 42m
Dublin1,149 km——289 kg5h
Edinburgh1,391 km69.4 kg15h 36m350 kg5h 24m
Frankfurt1,066 km31.5 kg10h 30m268 kg4h 54m
Glasgow1,390 km71.1 kg15h 42m350 kg5h 24m
Leeds1,146 km48.3 kg13h 24m288 kg5h
Lisbon833 km24.6 kg14h210 kg4h 36m
Liverpool1,108 km49.5 kg13h 24m279 kg5h
London897 km26.5 kg9h 48m226 kg4h 42m
Madrid389 km11.5 kg6h 54m97.7 kg4h
Manchester1,112 km47.5 kg13h 18m280 kg5h
Milan873 km25.8 kg13h 54m220 kg4h 42m
Munich1,133 km33.4 kg12h 36m285 kg5h
Newcastle1,277 km58.4 kg14h 6m321 kg5h 12m
Nottingham1,052 km40.6 kg12h 54m265 kg4h 54m
Oslo2,003 km59.1 kg30h 42m504 kg6h 12m
Paris665 km19.6 kg5h 30m167 kg4h 24m
Prague1,411 km41.6 kg19h 24m355 kg5h 24m
Rome1,155 km34.1 kg17h 54m291 kg5h
Sheffield1,100 km44.7 kg13h 12m277 kg5h
Southampton824 km35.4 kg12h 30m207 kg4h 36m
Stockholm2,204 km65.1 kg27h 24m555 kg6h 24m
Vienna1,474 km43.5 kg17h 42m371 kg5h 30m
Warsaw1,927 km56.9 kg23h 6m485 kg6h 6m
Zurich892 km26.3 kg11h224 kg4h 42m

The year in Bayonne

Average temperature, °C — warmest in August
January: 8.6 °C8.6 °CJanFebruary: 9.2 °CFebMarch: 12.4 °CMarApril: 13.5 °CAprMay: 15.6 °CMayJune: 19.6 °CJunJuly: 20.9 °CJulAugust: 21.6 °C21.6 °CAugSeptember: 19.3 °CSepOctober: 17.8 °COctNovember: 13.2 °CNovDecember: 9.7 °CDec
Sunshine, hours a day — brightest in May
January: 5.6 hJanFebruary: 6.7 hFebMarch: 8.3 hMarApril: 9.6 hAprMay: 11.5 h11.5 hMayJune: 10.7 hJunJuly: 11.3 hJulAugust: 11.3 hAugSeptember: 9.8 hSepOctober: 7.3 hOctNovember: 6.0 hNovDecember: 5.3 h5.3 hDec
Sea temperature, °C — warmest in August
January: 13.8 °CJanFebruary: 13.1 °C13.1 °CFebMarch: 13.3 °CMarApril: 14.3 °CAprMay: 16.3 °CMayJune: 20.2 °CJunJuly: 22.1 °CJulAugust: 23.0 °C23.0 °CAugSeptember: 21.8 °CSepOctober: 20.0 °COctNovember: 17.0 °CNovDecember: 14.6 °CDec
Historical daily means for 2023–2024, by month (ERA5 reanalysis) — averaged across day and night; sea temperature NOAA OISST v2.1, 2023–2024, nearest open sea
 JanFebMarAprMayJunJulAugSepOctNovDec
Temp °C8.69.212.413.515.619.620.921.619.317.813.29.7
Sun h/day5.66.78.39.611.510.711.311.39.87.36.05.3
Rain mm/day4.74.15.44.43.83.62.42.75.54.77.05.4
Sea °C13.813.113.314.316.320.222.123.021.820.017.014.6

When to go

Bayonne is warmest in August at 21.6 °C but brightest in May, averaging 11.5 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 8.6 °C.

Three months worth booking

The same year of measurements, decided rather than tabulated. Each opens the map below on dates in that month.

Staying there

A hotel room in France emits about 6.7 kg CO₂e per night under UK Government 2026 factors — a country average per occupied room, not this or any particular hotel. 7 nights in one room adds roughly 47 kg — about 4.2× the carbon of one person getting there by rail from Barcelona. Two sharing the room halve that share each; the journey does not halve.

How busy it gets

Pyrénées-Atlantiques records 10.1 overnight stays per resident a year (7,226,999 nights in 2025). A well-visited region, busy in season but not overwhelmed.

Eurostat, nights spent at tourist accommodation by NUTS 3 region, against resident population. Shown for context only — it plays no part in which destinations appear or in what order. Eurostat does not cover the United Kingdom after 2016, nor North Africa or the Levant at all, so this figure is absent for roughly a third of the destinations here.

Where to stay in Bayonne

Places to stay in Bayonne, France, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Bayonne →Opens the booking search in a new tab. Same partners as the map below.

Affiliate disclosure. A booking made through this map may earn 0xCarbon a commission, at no extra cost to you. It changes nothing above it: the emissions figures come from UK Government conversion factors and are computed before anyone is paid anything.See the method.

Distances are great-circle. Rail assumes international rail at 0.01135 kg CO₂e per passenger-km with a 1.3× track detour allowance; flights use 0.12576 kg per passenger-km including radiative forcing. Journey times are modelled, not timetabled. Full method.