Swansea
Reaching Swansea from London emits 21.2 kg CO₂e return by rail (4h 48m each way) against 121 kg by air — 6× the carbon. It averages 16.3 °C in August and 5.6 °C in January.
When to go: Swansea is warmest in August (16.3 °C), sunniest in June (11.7 h a day); coldest in January (5.6 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 610 km | 31.8 kg | 10h 42m | 154 kg | 4h 18m |
| Barcelona | 1,229 km | 54.8 kg | 17h 12m | 309 kg | 5h 6m |
| Berlin | 1,187 km | 48.7 kg | 17h 6m | 299 kg | 5h 6m |
| Birmingham | 169 km | 13.6 kg | 3h 54m | 77.7 kg | 3h 42m |
| Brussels | 583 km | 30.7 kg | 8h 48m | 147 kg | 4h 18m |
| Copenhagen | 1,174 km | 49.4 kg | 22h 42m | 295 kg | 5h 6m |
| Dublin | 246 km | — | — | 61.9 kg | 3h 48m |
| Edinburgh | 484 km | 38.9 kg | 8h 30m | 222 kg | 4h 6m |
| Frankfurt | 901 km | 40.0 kg | 12h 54m | 227 kg | 4h 42m |
| Glasgow | 472 km | 38.0 kg | 8h 18m | 217 kg | 4h 6m |
| Leeds | 291 km | 23.4 kg | 5h 42m | 133 kg | 3h 54m |
| Lisbon | 1,490 km | 68.0 kg | 34h 42m | 375 kg | 5h 30m |
| Liverpool | 209 km | 16.8 kg | 4h 30m | 96.0 kg | 3h 48m |
| London | 264 km | 21.2 kg | 4h 48m | 121 kg | 3h 54m |
| Madrid | 1,246 km | 58.5 kg | 20h 48m | 313 kg | 5h 12m |
| Manchester | 237 km | 19.0 kg | 4h 54m | 109 kg | 3h 48m |
| Milan | 1,182 km | 49.5 kg | 17h 30m | 297 kg | 5h 6m |
| Munich | 1,175 km | 48.3 kg | 16h 18m | 296 kg | 5h 6m |
| Newcastle | 404 km | 32.4 kg | 7h 18m | 185 kg | 4h |
| Nottingham | 241 km | 19.4 kg | 5h | 111 kg | 3h 48m |
| Oslo | 1,296 km | 55.3 kg | 32h 18m | 326 kg | 5h 12m |
| Paris | 543 km | 31.4 kg | 9h 6m | 137 kg | 4h 12m |
| Prague | 1,297 km | 51.7 kg | 22h 36m | 326 kg | 5h 12m |
| Rome | 1,649 km | 63.6 kg | 21h 30m | 415 kg | 5h 42m |
| Sheffield | 258 km | 20.7 kg | 5h 12m | 118 kg | 3h 48m |
| Southampton | 194 km | 15.6 kg | 4h 18m | 88.9 kg | 3h 48m |
| Stockholm | 1,619 km | 63.5 kg | 29h | 407 kg | 5h 42m |
| Vienna | 1,498 km | 57.7 kg | 21h 24m | 377 kg | 5h 30m |
| Warsaw | 1,704 km | 64.0 kg | 24h 36m | 429 kg | 5h 48m |
| Zurich | 1,017 km | 44.2 kg | 14h 36m | 256 kg | 4h 54m |
The year in Swansea
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 5.6 | 7.3 | 7.6 | 9.1 | 13.2 | 15.7 | 15.8 | 16.3 | 15.6 | 12.6 | 8.8 | 8.2 |
| Sun h/day | 3.9 | 4.0 | 5.7 | 7.3 | 11.1 | 11.7 | 9.4 | 8.7 | 7.5 | 5.6 | 3.9 | 2.4 |
| Rain mm/day | 5.7 | 4.5 | 6.9 | 4.0 | 3.0 | 2.0 | 5.2 | 4.8 | 5.6 | 6.0 | 4.3 | 6.7 |
| Sea °C | 9.0 | 8.2 | 8.6 | 10.1 | 12.6 | 15.5 | 17.3 | 18.3 | 17.7 | 15.7 | 13.3 | 10.0 |
When to go
Swansea is warmest in August at 16.3 °C but brightest in June, averaging 11.7 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 5.6 °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 United Kingdom emits about 10.4 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 73 kg — about 5.4× the carbon of one person getting there by rail from Birmingham. Two sharing the room halve that share each; the journey does not halve.
Where to stay in Swansea
Places to stay in Swansea, United Kingdom, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Swansea →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.