0xCarbon
Finland · 60.39°, 25.67° · 29 m

Porvoo

Reaching Porvoo from London emits 55.1 kg CO₂e return by rail (35h 54m each way) against 470 kg by air — 9× the carbon. It averages 17.6 °C in July and -5.4 °C in January.

Porvoo (Swedish: Borgå) is a scenic small town 50 km east of Helsinki, Finland. — Wikivoyage, CC BY-SA 4.0

When to go: Porvoo is warmest in July (17.6 °C), sunniest in June (15.9 h a day); coldest in January (-5.4 °C). Month by month

55.1kg CO₂e return by rail, from London
470kg CO₂e return by air, from London
15.9hours of sunshine a day in June, its brightest month

Getting there

Return carbon and one-way journey time to Porvoo. Times are modelled.
FromDistanceBy railRail timeBy airAir time
Amsterdam1,548 km45.7 kg31h 54m390 kg5h 36m
Barcelona2,650 km78.2 kg41h 36m667 kg7h
Berlin1,151 km34.0 kg26h 24m289 kg5h
Birmingham1,890 km68.2 kg38h 36m475 kg6h
Bristol1,999 km68.8 kg38h 54m503 kg6h 12m
Brussels1,695 km50.0 kg32h 6m426 kg5h 48m
Cardiff2,028 km72.1 kg39h 12m510 kg6h 12m
Copenhagen930 km27.4 kg18h 18m234 kg4h 42m
Dublin2,067 km——520 kg6h 18m
Edinburgh1,747 km98.0 kg41h 36m439 kg5h 48m
Frankfurt1,561 km46.1 kg28h 48m393 kg5h 36m
Glasgow1,810 km99.7 kg41h 48m455 kg5h 54m
Leeds1,783 km77.0 kg39h 30m449 kg5h 54m
Lisbon3,407 km101 kg59h 6m857 kg8h
Liverpool1,885 km78.1 kg39h 30m474 kg6h
London1,867 km55.1 kg35h 54m470 kg6h
Madrid2,995 km88.4 kg45h 12m753 kg7h 30m
Manchester1,841 km76.1 kg39h 24m463 kg6h
Milan1,981 km58.5 kg39h 12m498 kg6h 6m
Munich1,634 km48.2 kg31h 18m411 kg5h 42m
Newcastle1,715 km87.1 kg40h 6m431 kg5h 48m
Nottingham1,818 km69.2 kg39h457 kg5h 54m
Oslo826 km24.4 kg18h 54m208 kg4h 36m
Paris1,956 km57.7 kg33h 30m492 kg6h 6m
Prague1,345 km39.7 kg32h 48m338 kg5h 18m
Rome2,243 km66.2 kg43h 12m564 kg6h 30m
Sheffield1,806 km73.4 kg39h 18m454 kg5h 54m
Southampton1,978 km64.1 kg38h 36m498 kg6h 6m
Stockholm440 km13.0 kg12h 24m111 kg4h 6m
Vienna1,480 km43.7 kg32h 6m372 kg5h 30m
Warsaw951 km28.1 kg24h 18m239 kg4h 48m
Zurich1,821 km53.7 kg34h 48m458 kg5h 54m

The year in Porvoo

Average temperature, °C — warmest in July
January: -5.4 °C-5.4 °CJanFebruary: -3.6 °CFebMarch: -1.2 °CMarApril: 4.2 °CAprMay: 12.4 °CMayJune: 17.1 °CJunJuly: 17.6 °C17.6 °CJulAugust: 17.3 °CAugSeptember: 14.8 °CSepOctober: 6.0 °COctNovember: 0.9 °CNovDecember: -2.7 °CDec
Sunshine, hours a day — brightest in June
January: 1.4 hJanFebruary: 2.9 hFebMarch: 5.3 hMarApril: 8.7 hAprMay: 13.9 hMayJune: 15.9 h15.9 hJunJuly: 13.0 hJulAugust: 10.6 hAugSeptember: 8.7 hSepOctober: 4.9 hOctNovember: 1.7 hNovDecember: 1.0 h1.0 hDec
Historical daily means for 2023–2024, by month (ERA5 reanalysis) — averaged across day and night
 JanFebMarAprMayJunJulAugSepOctNovDec
Temp °C-5.4-3.6-1.24.212.417.117.617.314.86.00.9-2.7
Sun h/day1.42.95.38.713.915.913.010.68.74.91.71.0
Rain mm/day2.52.22.11.80.81.13.63.03.02.62.92.4

When to go

Porvoo is warmest in July at 17.6 °C but brightest in June, averaging 15.9 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at -5.4 °C.

On these lists

Three months worth booking

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

warmestJuly17.6 °C · 13.0 h sun · 3.6 mm rainSee rooms in July →sunniestJune17.1 °C · 15.9 h sun · 1.1 mm rainSee rooms in June →

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 Porvoo

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

Search places to stay in Porvoo →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.