Jena
Reaching Jena from Berlin emits 6.4 kg CO₂e return by rail (5h each way) against 54.6 kg by air — 9× the carbon. It averages 20.6 °C in August and 3.1 °C in January.
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 489 km | 14.4 kg | 8h 42m | 123 kg | 4h 12m |
| Barcelona | 1,283 km | 37.9 kg | 19h 36m | 323 kg | 5h 12m |
| Berlin | 217 km | 6.4 kg | 5h | 54.6 kg | 3h 48m |
| Birmingham | 944 km | 37.2 kg | 15h 24m | 237 kg | 4h 48m |
| Bristol | 989 km | 37.9 kg | 15h 30m | 249 kg | 4h 48m |
| Brussels | 508 km | 15.0 kg | 8h 54m | 128 kg | 4h 12m |
| Cardiff | 1,029 km | 41.1 kg | 16h 6m | 259 kg | 4h 54m |
| Copenhagen | 532 km | 15.7 kg | 9h 18m | 134 kg | 4h 12m |
| Dublin | 1,243 km | — | — | 313 kg | 5h 12m |
| Edinburgh | 1,124 km | 67.0 kg | 20h 30m | 283 kg | 5h |
| Frankfurt | 224 km | 6.6 kg | 5h 6m | 56.4 kg | 3h 48m |
| Glasgow | 1,182 km | 68.8 kg | 20h 48m | 297 kg | 5h 6m |
| Leeds | 946 km | 46.0 kg | 16h 54m | 238 kg | 4h 48m |
| Lisbon | 2,112 km | 62.3 kg | 30h 54m | 531 kg | 6h 18m |
| Liverpool | 1,029 km | 47.2 kg | 17h 6m | 259 kg | 4h 54m |
| London | 818 km | 24.1 kg | 13h 12m | 206 kg | 4h 36m |
| Madrid | 1,661 km | 49.0 kg | 24h 42m | 418 kg | 5h 42m |
| Manchester | 982 km | 45.2 kg | 16h 48m | 247 kg | 4h 48m |
| Milan | 633 km | 18.7 kg | 10h 42m | 159 kg | 4h 18m |
| Munich | 310 km | 9.2 kg | 6h 12m | 78.1 kg | 3h 54m |
| Newcastle | 990 km | 56.1 kg | 18h 36m | 249 kg | 4h 48m |
| Nottingham | 901 km | 38.2 kg | 15h 36m | 227 kg | 4h 42m |
| Oslo | 1,000 km | 29.5 kg | 15h 42m | 252 kg | 4h 48m |
| Paris | 700 km | 20.7 kg | 11h 36m | 176 kg | 4h 24m |
| Prague | 221 km | 6.5 kg | 5h | 55.6 kg | 3h 48m |
| Rome | 1,007 km | 29.7 kg | 15h 48m | 253 kg | 4h 48m |
| Sheffield | 930 km | 42.4 kg | 16h 18m | 234 kg | 4h 42m |
| Southampton | 910 km | 33.1 kg | 14h 42m | 229 kg | 4h 42m |
| Stockholm | 1,020 km | 30.1 kg | 16h | 257 kg | 4h 54m |
| Vienna | 459 km | 13.5 kg | 8h 18m | 115 kg | 4h 6m |
| Warsaw | 666 km | 19.7 kg | 11h 6m | 168 kg | 4h 24m |
| Zurich | 454 km | 13.4 kg | 8h 12m | 114 kg | 4h 6m |
The year in Jena
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 3.1 | 5.6 | 7.2 | 9.6 | 14.7 | 18.5 | 20.5 | 20.6 | 17.8 | 12.9 | 6.1 | 4.0 |
| Sun h/day | 3.0 | 4.2 | 6.5 | 8.3 | 10.6 | 12.2 | 11.8 | 10.6 | 9.8 | 6.2 | 3.7 | 3.3 |
| Rain mm/day | 1.4 | 2.0 | 2.0 | 2.0 | 2.4 | 3.2 | 2.2 | 2.8 | 1.7 | 2.3 | 2.0 | 2.0 |
When to go
Jena is warmest in August at 20.6 °C but brightest in June, averaging 12.2 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 3.1 °C.
Staying there
A hotel room in Germany emits about 13.2 kg CO₂e per night under UK Government 2026 factors, so a week adds roughly 92 kg — about 14.4× the carbon of getting there by rail from Berlin.
How busy it gets
Jena, Kreisfreie Stadt records 3.5 overnight stays per resident a year (383,757 nights in 2024). 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 Jena
Places to stay in Jena, Germany, 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.