0xCarbon
Portugal · 39.40°, -9.14° · 60 m

Caldas da Rainha

Caldas da Rainha, Portugal
Photo: GualdimG, CC BY-SA 4.0, via Wikimedia Commons

Reaching Caldas da Rainha from London emits 44.7 kg CO₂e return by rail (22h 18m each way) against 381 kg by air — 9× the carbon. It averages 20.0 °C in August and 12.0 °C in December.

Caldas da Rainha is a city in Portugal's Oeste region, about 10 km (6.2 mi) from the Atlantic Ocean and 90 km (56 mi) north of Lisbon. — Wikivoyage, CC BY-SA 4.0

When to go: Caldas da Rainha is warmest in August (20.0 °C), sunniest in July (12.9 h a day); coldest in December (12.0 °C). Month by month

44.7kg CO₂e return by rail, from London
381kg CO₂e return by air, from London
12.9hours of sunshine a day in July, its brightest month

Getting there

Return carbon and one-way journey time to Caldas da Rainha. Times are modelled.
FromDistanceBy railRail timeBy airAir time
Amsterdam1,799 km53.1 kg22h 42m452 kg5h 54m
Barcelona981 km29.0 kg12h247 kg4h 48m
Berlin2,256 km66.6 kg28h568 kg6h 30m
Birmingham1,556 km57.8 kg25h391 kg5h 36m
Bristol1,433 km58.5 kg25h 18m360 kg5h 24m
Brussels1,650 km48.7 kg20h 42m415 kg5h 42m
Cardiff1,420 km61.7 kg25h 36m357 kg5h 24m
Copenhagen2,414 km71.2 kg33h 30m607 kg6h 42m
Dublin1,564 km——394 kg5h 36m
Edinburgh1,891 km87.6 kg28h476 kg6h
Frankfurt1,835 km54.2 kg23h462 kg5h 54m
Glasgow1,865 km89.4 kg28h 12m469 kg6h
Leeds1,700 km66.6 kg25h 54m428 kg5h 48m
Liverpool1,626 km67.8 kg25h 54m409 kg5h 42m
London1,516 km44.7 kg22h 18m381 kg5h 30m
Madrid477 km14.1 kg8h 54m120 kg4h 6m
Manchester1,650 km65.8 kg25h 48m415 kg5h 42m
Milan1,643 km48.5 kg25h 18m413 kg5h 42m
Munich1,917 km56.6 kg25h 6m482 kg6h 6m
Newcastle1,820 km76.7 kg26h 30m458 kg5h 54m
Nottingham1,625 km58.8 kg25h 24m409 kg5h 42m
Oslo2,669 km78.8 kg40h 36m671 kg7h 6m
Paris1,391 km41.1 kg17h 54m350 kg5h 24m
Prague2,193 km64.7 kg31h 54m552 kg6h 24m
Rome1,842 km54.4 kg28h 36m463 kg6h
Sheffield1,660 km63.0 kg25h 42m418 kg5h 42m
Southampton1,413 km53.7 kg25h356 kg5h 24m
Stockholm2,924 km86.3 kg39h 54m735 kg7h 24m
Vienna2,255 km66.5 kg30h 12m567 kg6h 30m
Warsaw2,708 km79.9 kg35h 30m681 kg7h 6m
Zurich1,676 km49.4 kg23h 24m421 kg5h 42m

The year in Caldas da Rainha

Average temperature, °C — warmest in August
January: 12.1 °CJanFebruary: 12.6 °CFebMarch: 13.6 °CMarApril: 16.0 °CAprMay: 16.9 °CMayJune: 18.8 °CJunJuly: 19.5 °CJulAugust: 20.0 °C20.0 °CAugSeptember: 19.0 °CSepOctober: 18.8 °COctNovember: 15.8 °CNovDecember: 12.0 °C12.0 °CDec
Sunshine, hours a day — brightest in July
January: 7.3 h7.3 hJanFebruary: 8.7 hFebMarch: 9.0 hMarApril: 11.2 hAprMay: 12.3 hMayJune: 12.4 hJunJuly: 12.9 h12.9 hJulAugust: 11.7 hAugSeptember: 10.8 hSepOctober: 8.0 hOctNovember: 7.6 hNovDecember: 7.5 hDec
Sea temperature, °C — warmest in October
January: 15.8 °CJanFebruary: 15.4 °CFebMarch: 15.0 °C15.0 °CMarApril: 16.1 °CAprMay: 16.5 °CMayJune: 17.8 °CJunJuly: 17.8 °CJulAugust: 18.2 °CAugSeptember: 17.9 °CSepOctober: 19.4 °C19.4 °COctNovember: 18.1 °CNovDecember: 16.7 °CDec
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
 JanFebMarAprMayJunJulAugSepOctNovDec
Temp °C12.112.613.616.016.918.819.520.019.018.815.812.0
Sun h/day7.38.79.011.212.312.412.911.710.88.07.67.5
Rain mm/day3.32.63.71.00.92.10.40.11.44.72.61.2
Sea °C15.815.415.016.116.517.817.818.217.919.418.116.7

When to go

Caldas da Rainha is warmest in August at 20.0 °C but brightest in July, averaging 12.9 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is December at 12.0 °C.

Three months worth booking

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

Staying there

A hotel room in Portugal emits about 19 kg CO₂e per night under UK Government 2026 factors — a country average per occupied room, not this or any particular hotel. 7 nights in one room adds roughly 133 kg — about 9.4× the carbon of one person getting there by rail from Madrid. Two sharing the room halve that share each; the journey does not halve.

How busy it gets

Oeste records 5.6 overnight stays per resident a year (2,233,841 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 Caldas da Rainha

Places to stay in Caldas da Rainha, Portugal, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Caldas da Rainha →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.