Travel from São Tomé and Príncipe to Guam is conditional — see requirements below
This is the generic answer for any São Tomé and Príncipe citizen. Not legal or medical advice — verify with your airline and destination authorities before travel.
São Tomé and Príncipe passport holders must obtain a visa before travelling to Guam.
Generic country-level guidance for Guam. Verify against the official source before you travel.
This page covers a direct flight to Guam. If your route connects through a third country, that country may require its own transit visa — sometimes even for a short airside layover. Transit rules depend on your specific routing, so check the country you connect through separately, or analyse your full itinerary.
You're travelling to Guam (GU). Your home cellular plan may or may not include data abroad — check your carrier's international options before you fly. An eSIM is a low-commitment alternative if your plan doesn't cover the destination or charges high roaming rates.
Your itinerary touches São Tomé and Príncipe (ST), where malaria transmission occurs. Transmission is often region-limited within a country (e.g. coastal vs highland zones) and varies by season. Discuss prophylaxis with a travel medicine clinician — the right antimalarial depends on the specific region, your medical history, and any medications you take.
Typical September conditions at GUM (Guam (GU)): wet. Typical lows around 24°C, highs around 30°C, frequent rainfall (~317mm for the month). Expect frequent rainfall this month (~317mm typical). Pack a compact rain shell and a small umbrella.
This page covers the generic case for any São Tomé and Príncipe citizen. Sign in (free) to factor in your specific passport expiry, vaccinations, previous visas held, and connecting flights — and get the same analysis for your exact itinerary.
Sign in (free) to personalize →Your São Tomé and Príncipe (ST) passport requires a traditional visa for Guam. Traditional visas typically require a consulate appointment, paperwork, fees, and a multi-day to multi-week wait. Confirm requirements directly with the destination's consular site before booking. Source: Wikipedia visa matrix, synced 2026-06-21T10:11:55.888854+00:00.