At 10:00, early voting gets under way as registered voters start to cast their ballots ahead of the main election day.

At 10:00, early voting gets under way as registered voters start to cast their ballots ahead of the main election day.
Emigrant voting lets Portuguese citizens living abroad cast ballots in national elections, usually by mail or at consulates. With several hundred thousand registered overseas voters, their turnout and geographic distribution can be decisive in close presidential contests, so candidates often campaign to win votes in key emigrant communities.
Remote voting means casting a ballot without being physically present at a polling station, using methods such as postal ballots, proxy voting or internet/telephone systems. In the current presidential vote context many Portuguese abroad had to travel to consulates because remote options weren’t available, so voters living overseas should check well before election day which methods (if any) apply to them and how to register.
The second round (segunda volta) is a runoff held if no candidate obtains more than 50% of votes in the first round; the top two candidates then compete head‑to‑head. For expats following elections, the second round is usually decisive because broader coalitions form and turnout and endorsements can change the outcome.
Tactical voting means choosing a less-preferred candidate to achieve a strategic outcome—for example concentrating support to ensure a preferred candidate reaches the second round (segunda volta) or to block a rival. Party leaders urge it when they want to avoid splitting votes among similar candidates and increase the chance of a favourable runoff result.