Sønderborg
Reaching Sønderborg from London emits 22.4 kg CO₂e return by rail (13h 18m each way) against 191 kg by air — 9× the carbon. It averages 17.4 °C in August and 3.3 °C in January.
Sønderborg is a town on the island of Als at the eastern coast of South Jutland, Denmark near the Danish-German border. — Wikivoyage, CC BY-SA 4.0
When to go: Sønderborg is warmest in August (17.4 °C), sunniest in June (13.6 h a day), driest in September; coldest in January (3.3 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 429 km | 12.6 kg | 8h 12m | 108 kg | 4h 6m |
| Barcelona | 1,604 km | 47.3 kg | 20h 12m | 404 kg | 5h 36m |
| Berlin | 356 km | 10.5 kg | 6h 30m | 89.6 kg | 4h |
| Birmingham | 814 km | 35.5 kg | 16h | 205 kg | 4h 36m |
| Bristol | 909 km | 36.2 kg | 16h 18m | 229 kg | 4h 42m |
| Brussels | 580 km | 17.1 kg | 10h 24m | 146 kg | 4h 18m |
| Cardiff | 943 km | 39.4 kg | 16h 36m | 237 kg | 4h 48m |
| Copenhagen | 195 km | 5.8 kg | 4h 18m | 49.1 kg | 3h 48m |
| Dublin | 1,057 km | — | — | 266 kg | 4h 54m |
| Edinburgh | 826 km | 65.3 kg | 19h | 208 kg | 4h 36m |
| Frankfurt | 538 km | 15.9 kg | 8h 24m | 135 kg | 4h 12m |
| Glasgow | 892 km | 67.1 kg | 19h 12m | 224 kg | 4h 42m |
| Leeds | 744 km | 44.3 kg | 16h 54m | 187 kg | 4h 30m |
| Lisbon | 2,290 km | 67.6 kg | 34h 54m | 576 kg | 6h 36m |
| Liverpool | 847 km | 45.5 kg | 16h 54m | 213 kg | 4h 36m |
| London | 760 km | 22.4 kg | 13h 18m | 191 kg | 4h 30m |
| Madrid | 1,895 km | 55.9 kg | 23h 48m | 477 kg | 6h |
| Manchester | 797 km | 43.5 kg | 16h 48m | 201 kg | 4h 36m |
| Milan | 1,051 km | 31.0 kg | 17h 6m | 264 kg | 4h 54m |
| Munich | 763 km | 22.5 kg | 11h 30m | 192 kg | 4h 30m |
| Newcastle | 728 km | 54.4 kg | 17h 30m | 183 kg | 4h 30m |
| Nottingham | 748 km | 36.5 kg | 16h 24m | 188 kg | 4h 30m |
| Oslo | 559 km | 16.5 kg | 10h 6m | 141 kg | 4h 12m |
| Paris | 844 km | 24.9 kg | 12h 6m | 212 kg | 4h 36m |
| Prague | 621 km | 18.3 kg | 11h | 156 kg | 4h 18m |
| Rome | 1,461 km | 43.1 kg | 20h 42m | 368 kg | 5h 24m |
| Sheffield | 752 km | 40.7 kg | 16h 42m | 189 kg | 4h 30m |
| Southampton | 871 km | 31.4 kg | 16h | 219 kg | 4h 42m |
| Stockholm | 700 km | 20.7 kg | 10h 12m | 176 kg | 4h 24m |
| Vienna | 872 km | 25.7 kg | 14h 36m | 219 kg | 4h 42m |
| Warsaw | 798 km | 23.5 kg | 13h | 201 kg | 4h 36m |
| Zurich | 843 km | 24.9 kg | 14h 12m | 212 kg | 4h 36m |
The year in Sønderborg
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 3.3 | 4.7 | 5.4 | 7.7 | 13.0 | 16.2 | 16.8 | 17.4 | 16.5 | 11.4 | 6.1 | 4.7 |
| Sun h/day | 3.7 | 4.3 | 6.5 | 9.6 | 12.6 | 13.6 | 12.3 | 10.6 | 9.7 | 5.1 | 2.9 | 1.6 |
| Rain mm/day | 3.0 | 2.7 | 1.9 | 3.4 | 2.2 | 2.0 | 3.8 | 3.2 | 1.6 | 3.0 | 2.9 | 2.6 |
| Sea °C | 4.8 | 3.9 | 4.7 | 7.2 | 11.4 | 15.8 | 17.5 | 18.4 | 18.0 | 14.1 | 10.1 | 6.2 |
When to go
Sønderborg is warmest in August at 17.4 °C but brightest in June, averaging 13.6 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 3.3 °C.
Three months worth booking
The same year of measurements, decided rather than tabulated. Each opens the map below on dates in that month.
How busy it gets
Sydjylland records 10.7 overnight stays per resident a year (7,848,538 nights in 2024). A well-visited region, busy in season but not overwhelmed.
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 Sønderborg
Places to stay in Sønderborg, Denmark, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Sønderborg →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.