Estados Unidos: o que saber antes da viagem
O essencial
- Visa Waiver travellers need an approved ESTA before boarding — apply only at esta.cbp.dhs.gov (fee USD 40.62 since 16 Oct 2026); third-party sites charge much more.
- Anyone who visited Cuba since 12 Jan 2021 (or Iran, Iraq, Syria, Sudan, Libya, Somalia, Yemen, North Korea since 2011) can't use ESTA and needs a visa.
- Border officers may inspect phones and social media; refusal can lead to denied entry. The social-media question on ESTA is still optional (mandatory version proposed, not in force).
- Medical care is extremely expensive — buy travel insurance with high medical limits (USD 500k+ recommended).
- Cannabis is illegal under federal law (incl. airports and borders) even where states allow it; admitting use can lead to refusal.
Entrada e vistos
UK and most EU citizens use the Visa Waiver Program: ESTA (USD 40.62, valid 2 years or until passport expiry) for stays up to 90 days. Russia, Belarus, Kazakhstan, Uzbekistan, Ukraine, China, India, Turkey and UAE citizens need a B1/B2 visa (USD 185 application fee). A USD 250 'visa integrity fee' is legislated but, as of late Oct 2026, not yet collected. Chinese 10-year visa holders must update EVUS (USD 31.75).
Formulários e autorizações on-line
- ESTA (Electronic System for Travel Authorization) ↗ obrigatório
At least 72 hours before departure (ideally when booking) · Taxa: USD 40.62 (from 16 Oct 2026) · Visa Waiver Program nationals (UK, most EU, etc.) - EVUS ↗ obrigatório
Before travel; valid 2 years or until visa/passport expiry · Taxa: USD 31.75 · Chinese passport holders with a 10-year B1/B2 visa
Validade do passaporte: Valid for the whole stay (VWP travellers need an e-passport). Many nationalities need 6 months beyond the stay.
Na fronteira podem pedir
- Fingerprints and photo taken; answer questions about purpose, address and return ticket.
- Check your I-94 record online after entry to confirm your admitted-until date.
- Officers may examine electronic devices.
Alfândega
- Declare cash or monetary instruments over USD 10,000.
- Declare all food, plants and animal products; meat, fresh fruit and many dairy items are prohibited — undeclared items bring fines.
- Don't bring cannabis or CBD products, even if legal at origin or destination state.
- Prescription medicines in original containers; carry the prescription.
Verificado em 29 de outubro de 2026 · Fontes: esta.cbp.dhs.gov ↗, travel.state.gov ↗, cbp.gov ↗, gov.uk ↗, govinfo.gov ↗
Dinheiro
Paga-se com cartão quase em todo lugar. Cartões aceitos quase em todo lugar.
Bandeiras: Visa, Mastercard, Amex, Diners, JCB, UnionPay
Apple Pay — funciona · Google Pay — funciona
Onde trocar dinheiro
- Withdraw USD from bank ATMs (Chase, Bank of America, Wells Fargo, etc.) with a low-fee card
- Pay by card everywhere — most places are cashless-friendly
Onde evitar trocar
- Airport currency kiosks
- Exchanging cash at US banks (often only for account holders, poor rates)
- Dynamic currency conversion
Caixas eletrônicos: ATM owners charge USD 3–6 per withdrawal plus your bank's fee; stand-alone ATMs in shops/bars charge the most.
Gorjetas: Expected: 18–22% at sit-down restaurants and bars (USD 1–2 per drink), 15–20% taxis/rideshare, USD 2–5/night housekeeping. Sales tax is added at checkout, not shown on price tags.
- Mir and other Russian-issued cards don't work.
- Some shops and vending/transit systems are card-only; tap-to-pay works on many transit networks (e.g. NYC OMNY).
Verificado em 29 de outubro de 2026 · Fontes: cbp.gov ↗, usa.gov ↗, support.apple.com ↗
Regras e proibições
Proibido
- Cannabis on federal land, airports and across borders (and anywhere in non-legal states)
- Drinking alcohol in public in most places; open containers in cars
- Under-21 alcohol purchase or consumption
- Jaywalking is ticketed in some cities
- Drones near airports, national parks (banned) and over crowds
Leis que turistas violam sem saber
- Laws vary by state (alcohol hours, cannabis, gun laws, speed limits).
- Always carry ID; bars check ID regardless of age.
- If stopped by police while driving, stay in the car with hands visible.
- VWP visitors can't work or extend their stay.
Verificado em 29 de outubro de 2026 · Fontes: gov.uk ↗
Cultura e roupas
Religião: Predominantly Christian with large secular and diverse faith communities; no state religion.
Roupas: Casual almost everywhere; smart-casual for upscale restaurants. Indoor spaces are heavily air-conditioned — bring a layer.
Etiqueta
- Tip service staff — wages rely on it.
- Queue in line and respect personal space.
- Small talk and friendliness are normal; 'How are you?' is a greeting.
- Avoid politics with strangers.
Verificado em 29 de outubro de 2026 · Fontes: gov.uk ↗
Clima
Huge variety: cold snowy winters in the north and Midwest, mild Pacific coast, hot humid South and Florida (hurricane season Jun–Nov), desert Southwest very hot in summer.
Mês a mês
- janeiro: Jan: cold in North (NYC ~-3–4°C); mild Florida/SoCal
- fevereiro: Feb: cold north; ski season
- março: Mar: thawing; spring breaks
- abril: Apr: mild; blossom season
- maio: May: pleasant nationwide
- junho: Jun: warm; hurricane season begins
- julho: Jul: hot, humid East/South; desert 40°C+
- agosto: Aug: hot; peak national park crowds
- setembro: Sep: warm; hurricane peak in South-East
- outubro: Oct: fall foliage in North-East, pleasant
- novembro: Nov: cool; Thanksgiving travel peak
- dezembro: Dec: cold north; holiday season
Melhor época: April–June and September–October for most regions; winter for Florida, Hawaii and the Southwest.
Verificado em 29 de outubro de 2026 · Fontes: weather.gov ↗, nhc.noaa.gov ↗
O que levar
- US plug adapter (type A/B); check devices support 120 V
- Printed/stored ESTA or visa details and return ticket
- Insurance documents
- Layers for air-conditioning
- Credit card for car rentals and hotel deposits
O que não levar / proibido importar
- Meat, fresh fruit, plants and seeds
- Cannabis or CBD products
- Kinder Surprise eggs (banned)
- Large knives or pepper spray in carry-on
Prático
Tomadas: Type A/B, 120 V, 60 Hz
Água: Tap water is safe to drink almost everywhere.
Trânsito: pela direita
Celular e eSIM: Prepaid SIM/eSIM from T-Mobile, AT&T or Verizon (and MVNOs) without ID in many stores; free Wi-Fi is common.
Apps: Uber, Lyft, Google Maps, Transit, OpenTable, Yelp, Mobile Passport Control
Internet: No restrictions.
Saúde: No compulsory vaccinations for visitors. Medical costs are very high; emergency rooms must treat but will bill heavily.
Seguro: Not required for entry but essential; choose high medical limits and evacuation cover.
Emergência: 911 — police, fire, ambulance
Verificado em 29 de outubro de 2026 · Fontes: gov.uk ↗, cbp.gov ↗
As regras de entrada mudam. Antes da viagem, consulte o site da embaixada ou do serviço de imigração do país.