Colwyn Bay
Reaching Colwyn Bay from London emits 25.3 kg CO₂e return by rail (5h each way) against 144 kg by air — 6× the carbon. It averages 16.1 °C in August and 6.2 °C in January.
Colwyn Bay (Welsh: Bae Colwyn) is a coastal town in north Wales. — Wikivoyage, CC BY-SA 4.0
When to go: Colwyn Bay is warmest in August (16.1 °C), sunniest in June (11.9 h a day); coldest in January (6.2 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 587 km | 35.8 kg | 11h | 148 kg | 4h 18m |
| Barcelona | 1,395 km | 58.9 kg | 17h 30m | 351 kg | 5h 24m |
| Berlin | 1,150 km | 52.8 kg | 17h 18m | 289 kg | 5h |
| Birmingham | 152 km | 12.2 kg | 3h 42m | 69.8 kg | 3h 42m |
| Bristol | 218 km | 17.6 kg | 4h 42m | 100 kg | 3h 48m |
| Brussels | 615 km | 34.8 kg | 9h 6m | 155 kg | 4h 18m |
| Cardiff | 205 km | 16.5 kg | 4h 30m | 94.1 kg | 3h 48m |
| Copenhagen | 1,082 km | 53.5 kg | 22h 54m | 272 kg | 4h 54m |
| Dublin | 168 km | — | — | 42.2 kg | 3h 42m |
| Edinburgh | 297 km | 23.9 kg | 5h 48m | 136 kg | 3h 54m |
| Frankfurt | 924 km | 44.1 kg | 13h 12m | 232 kg | 4h 42m |
| Glasgow | 288 km | 23.1 kg | 5h 42m | 132 kg | 3h 54m |
| Leeds | 154 km | 12.4 kg | 3h 42m | 70.8 kg | 3h 42m |
| Lisbon | 1,672 km | 72.1 kg | 35h | 421 kg | 5h 42m |
| London | 315 km | 25.3 kg | 5h | 144 kg | 3h 54m |
| Madrid | 1,432 km | 62.6 kg | 21h 6m | 360 kg | 5h 24m |
| Milan | 1,274 km | 53.6 kg | 17h 48m | 321 kg | 5h 12m |
| Munich | 1,217 km | 52.4 kg | 16h 30m | 306 kg | 5h 6m |
| Newcastle | 232 km | 18.6 kg | 4h 48m | 106 kg | 3h 48m |
| Nottingham | 176 km | 14.2 kg | 4h | 80.7 kg | 3h 42m |
| Oslo | 1,147 km | 59.3 kg | 32h 30m | 289 kg | 5h |
| Paris | 651 km | 35.4 kg | 9h 24m | 164 kg | 4h 24m |
| Prague | 1,297 km | 55.8 kg | 22h 54m | 326 kg | 5h 12m |
| Rome | 1,750 km | 67.7 kg | 21h 48m | 440 kg | 5h 48m |
| Sheffield | 150 km | 12.1 kg | 3h 42m | 69.0 kg | 3h 42m |
| Southampton | 310 km | 24.9 kg | 6h | 142 kg | 3h 54m |
| Stockholm | 1,493 km | 67.6 kg | 29h 18m | 376 kg | 5h 30m |
| Vienna | 1,516 km | 61.8 kg | 21h 36m | 381 kg | 5h 30m |
| Warsaw | 1,660 km | 68.0 kg | 24h 48m | 418 kg | 5h 42m |
| Zurich | 1,090 km | 48.2 kg | 14h 48m | 274 kg | 5h |
The year in Colwyn Bay
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 6.2 | 7.7 | 7.3 | 9.1 | 13.0 | 15.2 | 15.6 | 16.1 | 15.1 | 12.3 | 8.6 | 8.1 |
| Sun h/day | 3.7 | 4.1 | 5.1 | 8.1 | 10.8 | 11.9 | 9.6 | 9.3 | 6.8 | 5.8 | 3.6 | 2.1 |
| Rain mm/day | 4.8 | 2.9 | 5.3 | 3.9 | 2.2 | 1.9 | 4.6 | 4.2 | 4.6 | 4.7 | 4.1 | 5.3 |
| Sea °C | 8.6 | 7.8 | 7.8 | 9.6 | 12.4 | 14.8 | 16.0 | 17.0 | 16.6 | 14.5 | 11.9 | 9.4 |
When to go
Colwyn Bay is warmest in August at 16.1 °C but brightest in June, averaging 11.9 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 6.2 °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 6.0× the carbon of one person getting there by rail from Sheffield. Two sharing the room halve that share each; the journey does not halve.
Where to stay in Colwyn Bay
Places to stay in Colwyn Bay, United Kingdom, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Colwyn Bay →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.