France · 47.28°, -2.22° · 12 m

Saint-Nazaire

Name: Saint-Nazaire
Address: Saint-Nazaire, FR

Saint-Nazaire, France — Photo: Pouick44, CC BY-SA 3.0, via Wikimedia Commons

Reaching Saint-Nazaire from London emits 14.6 kg CO₂e return by rail (9h 12m each way) against 124 kg by air — 9× the carbon. It averages 19.2 °C in August and 7.1 °C in January.

Saint-Nazaire is a port town of 153,000 people (2017) at the mouth of the Loire, near Nantes in western France. — Wikivoyage, CC BY-SA 4.0

When to go: Saint-Nazaire is warmest in August (19.2 °C), sunniest in June (12.6 h a day); coldest in January (7.1 °C). Month by month

14.6kg CO₂e return by rail, from London

124kg CO₂e return by air, from London

12.6hours of sunshine a day in June, its brightest month

Getting there

Return carbon and one-way journey time to Saint-Nazaire. Times are modelled.
From	Distance	By rail	Rail time	By air	Air time
Amsterdam	762 km	22.5 kg	9h 36m	192 kg	4h 30m
Barcelona	741 km	21.9 kg	12h 42m	186 kg	4h 30m
Berlin	1,259 km	37.1 kg	14h 54m	317 kg	5h 12m
Birmingham	579 km	27.7 kg	11h 54m	146 kg	4h 18m
Bristol	466 km	28.3 kg	12h 12m	117 kg	4h 6m
Brussels	622 km	18.3 kg	7h 42m	156 kg	4h 18m
Cardiff	473 km	31.6 kg	12h 30m	119 kg	4h 6m
Copenhagen	1,381 km	40.7 kg	20h 24m	347 kg	5h 18m
Dublin	732 km	—	—	184 kg	4h 30m
Edinburgh	967 km	57.5 kg	14h 54m	243 kg	4h 48m
Frankfurt	859 km	25.4 kg	9h 54m	216 kg	4h 36m
Glasgow	965 km	59.2 kg	15h 6m	243 kg	4h 48m
Leeds	727 km	36.4 kg	12h 48m	183 kg	4h 30m
Lisbon	1,104 km	32.6 kg	17h 48m	278 kg	5h
Liverpool	684 km	37.6 kg	12h 48m	172 kg	4h 24m
London	494 km	14.6 kg	9h 12m	124 kg	4h 12m
Madrid	772 km	22.8 kg	13h	194 kg	4h 30m
Manchester	690 km	35.6 kg	12h 42m	174 kg	4h 24m
Milan	897 km	26.5 kg	13h 12m	226 kg	4h 42m
Munich	1,035 km	30.5 kg	12h	260 kg	4h 54m
Newcastle	857 km	46.6 kg	13h 24m	216 kg	4h 36m
Nottingham	636 km	28.7 kg	12h 18m	160 kg	4h 18m
Oslo	1,639 km	48.4 kg	25h 42m	412 kg	5h 42m
Paris	382 km	11.3 kg	4h 48m	96.1 kg	4h
Prague	1,258 km	37.1 kg	18h 48m	316 kg	5h 12m
Rome	1,308 km	38.6 kg	17h 18m	329 kg	5h 12m
Sheffield	681 km	32.9 kg	12h 36m	171 kg	4h 24m
Southampton	408 km	23.5 kg	11h 54m	103 kg	4h
Stockholm	1,886 km	55.7 kg	26h 48m	475 kg	6h
Vienna	1,391 km	41.0 kg	17h 6m	350 kg	5h 24m
Warsaw	1,749 km	51.6 kg	22h 24m	440 kg	5h 48m
Zurich	811 km	23.9 kg	10h 18m	204 kg	4h 36m

The year in Saint-Nazaire

Average temperature, °C — warmest in August

Sunshine, hours a day — brightest in June

Sea temperature, °C — warmest in August

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
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Temp °C	7.1	8.5	9.7	11.4	15.0	18.6	18.5	19.2	17.7	15.0	11.1	9.0
Sun h/day	5.1	5.2	7.3	8.9	11.1	12.6	11.2	11.3	9.3	6.8	4.9	4.5
Rain mm/day	3.1	2.4	4.5	2.6	2.6	2.1	2.7	1.8	3.4	5.1	3.5	2.5
Sea °C	9.7	9.5	10.4	12.7	15.1	17.8	18.7	19.5	18.3	17.3	14.2	11.1

When to go

Saint-Nazaire is warmest in August at 19.2 °C but brightest in June, averaging 12.6 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 7.1 °C.

On these lists

Sunniest from London in December · low-carbon pick

Three months worth booking

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

warmest and driestAugust19.2 °C · 11.3 h sun · 1.8 mm rainSee rooms in August →sunniestJune18.6 °C · 12.6 h sun · 2.1 mm rainSee rooms in June →

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 Paris. Two sharing the room halve that share each; the journey does not halve.

How busy it gets

Loire-Atlantique records 5.5 overnight stays per resident a year (8,335,347 nights in 2025). Comparatively quiet by European standards.

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 Saint-Nazaire

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

Search places to stay in Saint-Nazaire →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.