How much eSIM data for 30 days in Croatia?
For 30 days in Croatia with normal daily use, TripUtils estimates 12–18 GB. A 20 GB plan is the usual buffer. Not a live price. Coast maps, ferry apps and messaging fit the normal band. Islands do not need a different GB model than Zagreb — coverage still depends on the provider’s Croatian partner.
Photo: Vitalii Dobrianskyi / PexelsTravel essentials in Croatia
The four things that save the most money or hassle before you go.
eSIM for Croatia
Usually included on an EU/EEA plan (roam like at home). Non-EU SIM or need more data? Install an eSIM before you fly.
See Saily plans →Airport transfer
Pre-book a ride from the airport to your stay – or compare with a taxi or public transport on arrival.
Find a transfer →Tours & tickets
Attractions, tours and activities in Croatia – compare prices on more than one site.
Browse Klook →Flight delayed?
3+ hours late or cancelled? Up to €600 per passenger under EU261, depending on distance.
Check claim (AirHelp) →Affiliate links: TripUtils may earn a commission at no extra cost to you. Affiliate disclosure. TripUtils does not show live prices.
What to do next
If your home SIM is an EU/EEA plan, Croatia is often already included. Check roaming first. If you still want a travel eSIM, pick a Saily plan at or above 20 GB for Croatia.
Planning size
| Habits | 30-day range | Planning size |
|---|---|---|
| Normal (maps, messages, social) | 12–18 GB | 20 GB |
| Normal + daily video | 30–45 GB | 50 GB |
Assumptions and sources
Light 0.20 / normal 0.50 / heavy 0.95 GB per day, plus optional extras, plus about 20% buffer. No live retail prices.
July–August lift Split, Dubrovnik and island stays; GB still follows phone habits, not ferry tickets.
These are planning ranges, not live prices.
Common questions
Is 20 GB enough for 30 days in Croatia?
Coast maps, ferry apps and messaging fit the normal band. Islands do not need a different GB model than Zagreb — coverage still depends on the provider’s Croatian partner. The 12–18 GB estimate plus buffer lands on 20 GB. Hotel Wi‑Fi is not counted. Streaming video on mobile is the usual reason to go larger.
Should I roam in Croatia instead?
Croatia is EU roam-like-at-home for most EU/EEA SIMs. A travel eSIM is mainly for a tight home cap or a UK/Swiss SIM. Island coverage still depends on the partner network.
Do you show live Saily prices?
No. Live prices belong on the provider site. The numbers on this page are a data-size estimate only.