Portimão
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Reaching Portimão from London emits 51.1 kg CO₂e return by rail (24h each way) against 435 kg by air — 9× the carbon. It averages 25.4 °C in August and 13.2 °C in December.
Portimão is the second biggest city in the Algarve, Portugal, and famous for its fresh fish restaurants, grilled sardines being the most famous dish. — Wikivoyage, CC BY-SA 4.0
When to go: Portimão is warmest in August (25.4 °C), sunniest in July (13.6 h a day); coldest in December (13.2 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 1,991 km | 58.8 kg | 24h 24m | 501 kg | 6h 12m |
| Barcelona | 1,034 km | 30.5 kg | 11h 54m | 260 kg | 4h 54m |
| Berlin | 2,415 km | 71.3 kg | 29h 48m | 607 kg | 6h 42m |
| Birmingham | 1,783 km | 64.1 kg | 26h 48m | 448 kg | 5h 54m |
| Bristol | 1,659 km | 64.8 kg | 27h | 417 kg | 5h 42m |
| Brussels | 1,835 km | 54.1 kg | 22h 30m | 461 kg | 5h 54m |
| Cardiff | 1,650 km | 68.0 kg | 27h 18m | 415 kg | 5h 42m |
| Copenhagen | 2,599 km | 76.7 kg | 35h 18m | 654 kg | 7h |
| Dublin | 1,809 km | — | — | 455 kg | 5h 54m |
| Edinburgh | 2,130 km | 93.9 kg | 29h 48m | 536 kg | 6h 18m |
| Frankfurt | 1,991 km | 58.8 kg | 24h 42m | 501 kg | 6h 12m |
| Glasgow | 2,107 km | 95.7 kg | 29h 54m | 530 kg | 6h 18m |
| Leeds | 1,929 km | 72.9 kg | 27h 36m | 485 kg | 6h 6m |
| Lisbon | 184 km | 5.4 kg | 4h 6m | 46.4 kg | 3h 42m |
| Liverpool | 1,860 km | 74.1 kg | 27h 36m | 468 kg | 6h |
| London | 1,730 km | 51.1 kg | 24h | 435 kg | 5h 48m |
| Madrid | 555 km | 16.4 kg | 8h 18m | 140 kg | 4h 12m |
| Manchester | 1,881 km | 72.1 kg | 27h 30m | 473 kg | 6h |
| Milan | 1,741 km | 51.4 kg | 25h 12m | 438 kg | 5h 48m |
| Munich | 2,040 km | 60.2 kg | 26h 48m | 513 kg | 6h 12m |
| Newcastle | 2,051 km | 83.0 kg | 28h 18m | 516 kg | 6h 12m |
| Nottingham | 1,849 km | 65.1 kg | 27h 6m | 465 kg | 6h |
| Oslo | 2,879 km | 85.0 kg | 43h 36m | 724 kg | 7h 18m |
| Paris | 1,572 km | 46.4 kg | 19h 42m | 395 kg | 5h 36m |
| Prague | 2,327 km | 68.7 kg | 33h 36m | 585 kg | 6h 36m |
| Rome | 1,876 km | 55.4 kg | 29h 6m | 472 kg | 6h |
| Sheffield | 1,887 km | 69.3 kg | 27h 24m | 475 kg | 6h |
| Southampton | 1,632 km | 60.0 kg | 26h 42m | 410 kg | 5h 42m |
| Stockholm | 3,115 km | 91.9 kg | 41h 36m | 783 kg | 7h 42m |
| Vienna | 2,364 km | 69.7 kg | 31h 54m | 595 kg | 6h 42m |
| Warsaw | 2,844 km | 83.9 kg | 37h 18m | 715 kg | 7h 18m |
| Zurich | 1,802 km | 53.2 kg | 24h 48m | 453 kg | 5h 54m |
The year in Portimão
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 13.4 | 13.7 | 14.8 | 17.8 | 19.3 | 22.1 | 24.0 | 25.4 | 21.3 | 19.8 | 16.7 | 13.2 |
| Sun h/day | 8.0 | 8.9 | 9.5 | 11.9 | 12.6 | 12.8 | 13.6 | 12.8 | 10.8 | 8.9 | 8.2 | 8.0 |
| Rain mm/day | 1.9 | 1.6 | 2.7 | 0.4 | 0.7 | 0.4 | 0.1 | 0.0 | 0.6 | 4.0 | 1.7 | 0.5 |
| Sea °C | 17.0 | 16.2 | 15.6 | 16.7 | 16.8 | 18.8 | 18.6 | 19.6 | 19.3 | 20.1 | 18.7 | 17.9 |
When to go
Portimão is warmest in August at 25.4 °C but brightest in July, averaging 13.6 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is December at 13.2 °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.
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 24.6× the carbon of one person getting there by rail from Lisbon. Two sharing the room halve that share each; the journey does not halve.
How busy it gets
Algarve records 46.6 overnight stays per resident a year (22,941,654 nights in 2025). That is heavy tourist pressure — among the densest in Europe.
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 Portimão
Places to stay in Portimão, Portugal, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Portimão →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.