Helsinki
Reaching Helsinki from Stockholm emits 11.7 kg CO₂e return by rail (7h 24m each way) against 99.5 kg by air — 9× the carbon. It averages 17.5 °C in August and -4.4 °C in January.
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 1,501 km | 44.3 kg | 22h 30m | 378 kg | 5h 30m |
| Barcelona | 2,604 km | 76.8 kg | 37h 36m | 655 kg | 7h |
| Berlin | 1,105 km | 32.6 kg | 17h 6m | 278 kg | 5h |
| Birmingham | 1,844 km | 66.8 kg | 29h 6m | 464 kg | 6h |
| Bristol | 1,954 km | 67.5 kg | 29h 18m | 491 kg | 6h 6m |
| Brussels | 1,648 km | 48.6 kg | 24h 30m | 414 kg | 5h 42m |
| Cardiff | 1,983 km | 70.7 kg | 29h 48m | 499 kg | 6h 6m |
| Copenhagen | 883 km | 26.1 kg | 14h 6m | 222 kg | 4h 42m |
| Dublin | 2,024 km | — | — | 509 kg | 6h 12m |
| Edinburgh | 1,705 km | 96.6 kg | 34h 12m | 429 kg | 5h 48m |
| Frankfurt | 1,514 km | 44.7 kg | 22h 42m | 381 kg | 5h 30m |
| Glasgow | 1,768 km | 98.4 kg | 34h 30m | 445 kg | 5h 54m |
| Leeds | 1,739 km | 75.6 kg | 30h 36m | 437 kg | 5h 48m |
| Lisbon | 3,360 km | 99.2 kg | 48h | 845 kg | 8h |
| Liverpool | 1,841 km | 76.8 kg | 30h 48m | 463 kg | 6h |
| London | 1,821 km | 53.7 kg | 26h 54m | 458 kg | 5h 54m |
| Madrid | 2,948 km | 87.0 kg | 42h 18m | 742 kg | 7h 24m |
| Manchester | 1,796 km | 74.8 kg | 30h 30m | 452 kg | 5h 54m |
| Milan | 1,937 km | 57.2 kg | 28h 30m | 487 kg | 6h 6m |
| Munich | 1,589 km | 46.9 kg | 23h 42m | 400 kg | 5h 36m |
| Newcastle | 1,671 km | 85.7 kg | 32h 24m | 420 kg | 5h 42m |
| Nottingham | 1,772 km | 67.8 kg | 29h 18m | 446 kg | 5h 54m |
| Oslo | 787 km | 23.2 kg | 12h 48m | 198 kg | 4h 30m |
| Paris | 1,909 km | 56.3 kg | 28h 6m | 480 kg | 6h |
| Prague | 1,302 km | 38.4 kg | 19h 48m | 327 kg | 5h 12m |
| Rome | 2,202 km | 65.0 kg | 32h 6m | 554 kg | 6h 24m |
| Sheffield | 1,761 km | 72.0 kg | 30h | 443 kg | 5h 48m |
| Southampton | 1,932 km | 62.7 kg | 28h 24m | 486 kg | 6h 6m |
| Stockholm | 396 km | 11.7 kg | 7h 24m | 99.5 kg | 4h |
| Vienna | 1,439 km | 42.5 kg | 21h 42m | 362 kg | 5h 24m |
| Warsaw | 915 km | 27.0 kg | 14h 30m | 230 kg | 4h 42m |
| Zurich | 1,775 km | 52.4 kg | 26h 18m | 446 kg | 5h 54m |
The year in Helsinki
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | -4.4 | -2.8 | -1.2 | 3.6 | 11.0 | 16.2 | 17.3 | 17.5 | 15.3 | 7.0 | 2.1 | -1.6 |
| Sun h/day | 1.4 | 2.9 | 5.7 | 9.0 | 14.4 | 16.0 | 13.3 | 11.2 | 9.2 | 5.2 | 2.0 | 1.1 |
| Rain mm/day | 2.4 | 2.4 | 1.9 | 1.7 | 0.8 | 1.1 | 2.7 | 3.2 | 3.1 | 2.9 | 2.9 | 2.4 |
When to go
Helsinki is warmest in August at 17.5 °C but brightest in June, averaging 16.0 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at -4.4 °C.
How busy it gets
Helsinki-Uusimaa records 4.1 overnight stays per resident a year (7,319,289 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 Helsinki
Places to stay in Helsinki, Finland, on a live map. Prices and availability come from Stay22 and its booking partners.
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.