Back to your Lisbon guideSources & checks

Know what’s behind your plan.

Historical data, current-source checks and editorial suggestions serve different purposes. Here is how the Lisbon guide keeps them clear.

IPMA

Lisbon climate

1981–2010 historical normal, version 2.3 (2023). Observed and modeled data. Source attribution required.

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Source reviewed: 2026-09-09Planned review: Annual
IPMA

Porto climate

1981–2010 historical normal, version 2.4 (2023). Airport-area station; local conditions vary.

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Source reviewed: 2026-09-09Planned review: Annual
Metro Lisboa

Metro fares

2026 fares. Per-person tickets; no child or resident discounts assumed.

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Source reviewed: 2026-09-09Planned review: Monthly
Metro Lisboa

Metro hours

Normal operating hours, not live service or a guaranteed last connection.

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Source reviewed: 2026-09-09Planned review: Monthly
ANA / Lisbon Airport

Airport transport

Boarding information, luggage limits and ground-transport choices.

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Source reviewed: 2026-09-09Planned review: Monthly
CP

Day-trip trains

Network orientation; use current timetables and service notices for departure times.

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Source reviewed: 2026-09-09Planned review: Monthly
IPMA / APA

Coastal conditions

Links to official beach and water information. No local sea-temperature dataset or swimming forecast is reproduced.

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Source reviewed: 2026-09-09Planned review: Monthly
NOAA

Daylight calculation

Approximate fractional-year equations, using the Europe/Lisbon time zone.

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Source reviewed: 2026-09-09Planned review: On calculation changes
OpenStreetMap contributors / Valhalla

Baixa walk geometry

ODbL geographic data. Pedestrian geometry and street instructions desk-reviewed; not field-tested.

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Source reviewed: 2026-09-09Planned review: Quarterly and after corrections

What a review means

A source review is a check of published information. It is not a visit to a place, a live service guarantee or an accessibility audit. Monthly averages do not predict the weather on a booked date. Historical city stories remain labeled as archive content. Maps and route files include their source and review scope.

Editorial policyReport a problem