Calais
Reaching Calais from London emits 4.5 kg CO₂e return by rail (5h 24m each way) against 38.0 kg by air — 8× the carbon. It averages 18.3 °C in August and 5.8 °C in January.
Calais (Dutch: Kales) is a city of 73,000 people (2019) in the Hauts-de-France region of France. — Wikivoyage, CC BY-SA 4.0
When to go: Calais is warmest in August (18.3 °C), sunniest in June (12.7 h a day); coldest in January (5.8 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 262 km | 7.7 kg | 5h 48m | 66.0 kg | 3h 48m |
| Barcelona | 1,064 km | 31.4 kg | 12h 30m | 268 kg | 4h 54m |
| Berlin | 814 km | 24.0 kg | 12h | 205 kg | 4h 36m |
| Birmingham | 310 km | 17.5 kg | 8h 12m | 77.9 kg | 3h 54m |
| Bristol | 315 km | 18.2 kg | 8h 24m | 79.3 kg | 3h 54m |
| Brussels | 175 km | 5.2 kg | 4h | 44.1 kg | 3h 42m |
| Cardiff | 356 km | 21.5 kg | 8h 42m | 89.4 kg | 4h |
| Copenhagen | 883 km | 26.1 kg | 14h 42m | 222 kg | 4h 42m |
| Dublin | 613 km | — | — | 154 kg | 4h 18m |
| Edinburgh | 649 km | 47.4 kg | 11h 12m | 163 kg | 4h 24m |
| Frankfurt | 491 km | 14.5 kg | 8h 6m | 124 kg | 4h 12m |
| Glasgow | 680 km | 49.1 kg | 11h 18m | 171 kg | 4h 24m |
| Leeds | 392 km | 26.3 kg | 9h | 98.5 kg | 4h |
| Lisbon | 1,609 km | 47.5 kg | 25h | 405 kg | 5h 36m |
| Liverpool | 428 km | 27.5 kg | 9h | 108 kg | 4h 6m |
| London | 151 km | 4.5 kg | 5h 24m | 38.0 kg | 3h 42m |
| Madrid | 1,248 km | 36.8 kg | 16h 6m | 314 kg | 5h 12m |
| Manchester | 396 km | 25.5 kg | 8h 54m | 99.6 kg | 4h |
| Milan | 816 km | 24.1 kg | 12h 48m | 205 kg | 4h 36m |
| Munich | 767 km | 22.6 kg | 11h 30m | 193 kg | 4h 30m |
| Newcastle | 504 km | 36.4 kg | 9h 42m | 127 kg | 4h 12m |
| Nottingham | 303 km | 18.6 kg | 8h 30m | 76.3 kg | 3h 54m |
| Oslo | 1,141 km | 33.7 kg | 18h 30m | 287 kg | 5h |
| Paris | 236 km | 7.0 kg | 4h 30m | 59.4 kg | 3h 48m |
| Prague | 892 km | 26.3 kg | 14h 54m | 224 kg | 4h 42m |
| Rome | 1,294 km | 38.2 kg | 16h 48m | 326 kg | 5h 12m |
| Sheffield | 353 km | 22.7 kg | 8h 48m | 88.7 kg | 4h |
| Southampton | 229 km | 13.4 kg | 8h 6m | 57.5 kg | 3h 48m |
| Stockholm | 1,382 km | 40.8 kg | 20h | 348 kg | 5h 18m |
| Vienna | 1,088 km | 32.1 kg | 16h 36m | 274 kg | 5h |
| Warsaw | 1,327 km | 39.2 kg | 19h 30m | 334 kg | 5h 18m |
| Zurich | 629 km | 18.6 kg | 9h 54m | 158 kg | 4h 18m |
The year in Calais
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 5.8 | 7.6 | 8.3 | 9.6 | 12.9 | 16.2 | 17.8 | 18.3 | 17.2 | 13.6 | 9.1 | 7.8 |
| Sun h/day | 4.2 | 4.5 | 5.8 | 9.0 | 11.2 | 12.7 | 11.1 | 11.2 | 8.8 | 6.2 | 3.5 | 2.9 |
| Rain mm/day | 2.9 | 3.0 | 3.6 | 2.9 | 2.3 | 1.0 | 2.4 | 2.4 | 3.3 | 3.7 | 3.8 | 2.8 |
| Sea °C | 10.2 | 8.6 | 8.8 | 10.1 | 12.0 | 14.7 | 17.1 | 18.6 | 18.5 | 16.8 | 14.3 | 11.3 |
When to go
Calais is warmest in August at 18.3 °C but brightest in June, averaging 12.7 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 5.8 °C.
On these lists
- Warmest from London in January · low-carbon pick
- Warmest from London in February · low-carbon pick
- Warmest from London in March · low-carbon pick
- Warmest from London in April · low-carbon pick
- Warmest from London in May · low-carbon pick
- Warmest from London in June · low-carbon pick
- Warmest from London in July · low-carbon pick
- Warmest from London in August · 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.
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 10.4× the carbon of one person getting there by rail from London. Two sharing the room halve that share each; the journey does not halve.
How busy it gets
Pas-de-Calais records 2.9 overnight stays per resident a year (4,185,081 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 Calais
Places to stay in Calais, France, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Calais →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.