Denmark · 55.68°, 12.57° · 14 m

Copenhagen

Reaching Copenhagen from London emits 28.2 kg CO₂e return by rail (16h 6m each way) against 240 kg by air — 9× the carbon. It averages 17.5 °C in August and 2.4 °C in January.

Copenhagen (Danish: København) is the capital city of Denmark and forms the moderate conurbation that one million Danes call home. — Wikivoyage, CC BY-SA 4.0

When to go: Copenhagen is warmest in August (17.5 °C), sunniest in June (13.6 h a day), driest in May; coldest in January (2.4 °C). Month by month

28.2kg CO₂e return by rail, from London

240kg CO₂e return by air, from London

13.6hours of sunshine a day in June, its brightest month

Getting there

Return carbon and one-way journey time to Copenhagen. Times are modelled.
From	Distance	By rail	Rail time	By air	Air time
Amsterdam	621 km	18.3 kg	11h	156 kg	4h 18m
Barcelona	1,759 km	51.9 kg	23h	443 kg	5h 48m
Berlin	355 km	10.5 kg	7h 6m	89.2 kg	4h
Birmingham	1,006 km	41.3 kg	18h 48m	253 kg	4h 48m
Bristol	1,103 km	41.9 kg	19h 6m	277 kg	5h
Brussels	765 km	22.6 kg	13h 6m	192 kg	4h 30m
Cardiff	1,136 km	45.2 kg	19h 24m	286 kg	5h
Dublin	1,238 km	—	—	311 kg	5h 12m
Edinburgh	983 km	71.1 kg	21h 48m	247 kg	4h 48m
Frankfurt	671 km	19.8 kg	10h 24m	169 kg	4h 24m
Glasgow	1,050 km	72.8 kg	22h	264 kg	4h 54m
Leeds	928 km	50.1 kg	19h 42m	233 kg	4h 42m
Lisbon	2,478 km	73.1 kg	37h 42m	623 kg	6h 48m
Liverpool	1,031 km	51.2 kg	19h 42m	259 kg	4h 54m
London	955 km	28.2 kg	16h 6m	240 kg	4h 48m
Madrid	2,072 km	61.2 kg	26h 36m	521 kg	6h 18m
Manchester	983 km	49.2 kg	19h 36m	247 kg	4h 48m
Milan	1,160 km	34.2 kg	18h 42m	292 kg	5h
Munich	841 km	24.8 kg	11h 30m	212 kg	4h 36m
Newcastle	899 km	60.2 kg	20h 18m	226 kg	4h 42m
Nottingham	938 km	42.3 kg	19h 12m	236 kg	4h 48m
Oslo	483 km	14.3 kg	9h	122 kg	4h 6m
Paris	1,027 km	30.3 kg	14h 54m	258 kg	4h 54m
Prague	634 km	18.7 kg	11h 12m	159 kg	4h 18m
Rome	1,533 km	45.2 kg	22h 12m	386 kg	5h 30m
Sheffield	939 km	46.5 kg	19h 30m	236 kg	4h 48m
Southampton	1,067 km	37.1 kg	18h 48m	268 kg	4h 54m
Stockholm	522 km	15.4 kg	6h 48m	131 kg	4h 12m
Vienna	870 km	25.7 kg	14h 36m	219 kg	4h 42m
Warsaw	672 km	19.8 kg	11h 36m	169 kg	4h 24m
Zurich	964 km	28.5 kg	15h 54m	243 kg	4h 48m

The year in Copenhagen

Average temperature, °C — warmest in August

Sunshine, hours a day — brightest in June

Sea temperature, °C — warmest in August

Historical daily means for 2023–2024, by month (ERA5 reanalysis) — averaged across day and night; sea temperature NOAA OISST v2.1, 2023–2024, nearest open sea
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Temp °C	2.4	3.6	4.3	7.0	12.7	16.2	17.1	17.5	16.5	11.2	6.0	4.3
Sun h/day	2.9	4.4	5.9	9.4	13.4	13.6	12.3	10.4	10.0	5.3	3.3	1.5
Rain mm/day	2.7	2.2	1.7	1.8	0.6	1.4	2.9	2.9	1.5	2.6	2.8	1.9
Sea °C	4.2	3.7	4.2	6.4	10.7	15.4	17.1	17.9	17.4	13.2	9.2	5.6

When to go

Copenhagen is warmest in August at 17.5 °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 2.4 °C.

Three months worth booking

The same year of measurements, decided rather than tabulated. Each opens the map below on dates in that month.

warmestAugust17.5 °C · 10.4 h sun · 2.9 mm rainSee rooms in August →sunniestJune16.2 °C · 13.6 h sun · 1.4 mm rainSee rooms in June →driestMay12.7 °C · 13.4 h sun · 0.6 mm rainSee rooms in May →

How busy it gets

Byen København records 14.7 overnight stays per resident a year (12,221,225 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 Copenhagen

Places to stay in Copenhagen, Denmark, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Copenhagen →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.