Bali and Thailand attract the same kind of traveller, someone after warm sea, good food and temples on a holiday in Southeast Asia. They are not alike in practice, though. One is a single Indonesian island, the other a country with two coasts that get their rain in different months. This page compares them on the points that decide a trip: when each is dry, how you get in, what the sourced costs say, how you move around, where you can swim and what the culture is like.
The weather section uses data from both our sites, Bali Frontier and Thailand Frontier, which measure rainfall the same way, from the ERA5 reanalysis for 1995 to 2024.
Is Bali in Thailand?
No. Bali is an island and a province of Indonesia, one of the country’s 38 provinces, with its capital at Denpasar. Thailand is a different country. A trip to both involves separate entry, separate formalities and a flight. Our page on where Bali is has the map and the geography.
We have not put a distance or flight time here. Neither of our sites holds a dated, authoritative figure for it, and flight times vary by route and connection, so check an airline or booking site for your dates.
When to go: rainfall side by side
Rainfall decides this comparison more than anything else, because the two countries do not share a wet season. The table gives mean monthly rainfall in millimetres for Bali (measured at Kuta in the southern lowlands), Phuket (the west coast at Patong) and Koh Samui. The figures come from the data files of our two sites, both ERA5 1995 to 2024.
| Month | Bali (mm) | Phuket (mm) | Koh Samui (mm) |
|---|---|---|---|
| January | 284 | 52 | 83 |
| February | 253 | 32 | 41 |
| March | 210 | 93 | 84 |
| April | 134 | 152 | 99 |
| May | 80 | 269 | 113 |
| June | 62 | 240 | 85 |
| July | 51 | 223 | 90 |
| August | 36 | 248 | 90 |
| September | 49 | 293 | 139 |
| October | 68 | 315 | 270 |
| November | 151 | 231 | 313 |
| December | 257 | 103 | 163 |
The two sites define “dry” differently, so we do not mix the definitions. For Bali, a month counts as dry when it came in under 100 mm in at least 20 of the thirty years. By that test Bali is dry from May to October. For Thailand, a month is dry only when it is under 150 mm and has under sixteen rain days. By that test Phuket is dry from December to March and Koh Samui from January to April.
Read straight from the table, the pattern is plain:
- Bali and Phuket are never both under 100 mm in the same month. When Phuket is driest, in January, February and March, Bali is at 284, 253 and 210 mm.
- Bali and Koh Samui are both under 100 mm in June, July and August. That is the one stretch where the island and a Thai beach are both dry.
- Phuket and Koh Samui are both under 100 mm in January, February and March.
Getting in: visas and arrival cards
Both countries ask for a free online arrival card, and both warn about paid lookalike sites.
For Bali, our visa page describes a visa on arrival, commonly for 30 days and extendable once, so many tourists can stay up to around 60 days. Passports should generally be valid for at least six months. The All Indonesia arrival card is filled in online within 72 hours before you arrive, and it is free; see the Bali arrival card page. Bali also charges a tourist levy of Rp 150,000 per person, paid once per trip, on top of the visa. Our tourist levy page explains how to pay it.
For Thailand, the Thailand Digital Arrival Card (TDAC) is free and is filed within the three days before arrival. Its TDAC page was last checked in August 2026. The visa-exemption rules are the part to watch. The Thailand visa page, updated on 4 August 2026, says this category is mid-revision, after a Cabinet decision in May 2026 approved reducing the maximum visa-exempt stay and shortening the list of eligible countries. It deliberately gives no table of stay lengths, so confirm your own passport with the Thai Immigration Bureau or the nearest Thai embassy.
Rules for both change, and they depend on your passport. Treat our pages as a starting point and check the official sources close to your departure.
Costs: what the sources do and do not say
Our Bali cost page, is Bali expensive, is sourced to 2026 guides. One guide published on 31 May 2026 puts budget travellers at 400,000 to 650,000 rupiah a day and mid-range travellers at 1.1 million to 2.1 million rupiah, both including a bed. Flights, the Rp 150,000 levy and entry fees do not shrink with a tight budget.
The Thailand budget page takes a different approach. It says its prices are deliberately broad and change with the season, the region and the exchange rate, and it prints no daily figures. It does say the islands, especially Phuket and Koh Samui, are generally the priciest region of Thailand.
That means we cannot rank the two on price from sourced figures, and we will not guess. Both countries have a wide spread between a cheap trip and an expensive one. The better test is to price your own dates: flights, a bed at your level, and the transport you will actually use.
Getting around, beaches and swimming
Bali is compact, with no railway at all. Visitors mix private drivers, ride-hailing apps and scooters, and our getting around page warns that scooters account for many visitor injuries. Fast boats to the Nusa Islands leave from Sanur and take about 30 to 45 minutes.
Thailand is larger and more varied. Our getting around Thailand page recommends flying the long hops, taking the sleeper train to Chiang Mai and using ferries for the islands. Distances add up between coasts: Phuket to Koh Samui is 261 km and can take ten hours by road and ferry.
On the beach, the two have a similar problem. Bali’s west and south coasts carry real surf and rip currents, and drownings happen every year among visitors who underestimate them. For easy swimming, our best beaches in Bali guide points to Sanur, where a reef keeps the water flat. The best beaches in Thailand page says the Andaman coast is calmest from November to April, and that the Krabi bays are roughly three times calmer than Phuket’s west coast.
Culture
Bali is a Hindu island inside Muslim-majority Indonesia. Its temples, daily offerings and festivals shape what you see, and our Bali temples guide covers the etiquette at the main ones, including the sarong rules. Uluwatu Temple is a good first example.
Thailand is overwhelmingly Buddhist. The 2018 census put Theravada Buddhism at 93.5% of the population, according to our Thailand religion page, which also covers spirit shrines and the rules around monks.
So which should you choose?
Choose by month first. If you are travelling from May to October, Bali is dry and Phuket is not, while Koh Samui is a reasonable Thai alternative from June to August. If you are travelling from December to March, the table points to Phuket and Koh Samui rather than Bali.
After that, choose by shape of trip. Bali suits a single base or a short list of areas, and our Bali itinerary guide shows how to link them. Thailand rewards a longer trip with a mix of city, islands and the north, and our sister site has a page on multi-centre holidays. A trip that combines both is possible, but it adds a flight, a second set of entry rules and a second arrival card.