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Daily budget
| In Bangkok, stay in a central hostel for €8–15 (Khao San/Phaya Thai), 3* hotels for €30–60 (e.g., Nouvo City Hotel), 4* for €70–120 (Sukhumvit).Street food €1.5–3 (Pad Thai at Thip Samai €2.5–5), mid-range restaurant €7–12.BTS day pass €3.9, airport–center taxi €9–11 + tolls. Grand Palace €13, Mahanakhon Skywalk €23. Daily budget: backpacker €35–55, mid €70–110, luxury €160–300+.✓ Better | In Ko Samui, basic bungalows €20–35 (Lamai/Maenam), 3* hotels €60–110 (Chaweng), 5* beachfront resorts €220–500 (e.g., Six Senses Samui).Thai meals €3–6.5, seafood at Fisherman’s Village €9–21 per dish, cocktails €4.7–7.3.Scooter rental €4–6/day, car €21–32.Ang Thong tour €39–58.Airport–Chaweng taxi €10–13. shoestring €55–75, mid €100–150, luxury €220–400+. |
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Top attractions
| The Grand Palace (500 THB ≈ €13, 2–3 hours) and Wat Pho (200 THB ≈ €5, 1.5 hours) are musts.Wat Arun (100 THB ≈ €3, 1 hour) is reached by boat from Tha Tien.Panoramic views at Mahanakhon Skywalk (880 THB ≈ €23, 1–1.5 hours).For families, SEA LIFE Bangkok (1090 THB ≈ €28, 2 hours).Transfers between temples in 10–20 min with the Chao Phraya Express (€0.4–1.2).✓ Better | In Ko Samui, visit the Big Buddha (free, 30–45 min) and Wat Plai Laem (donation, 30 min) 3–5 km from USM.The Na Muang 1/2 waterfalls (free, 1–2 hours) are 18 km from Chaweng.The Secret Buddha Garden (80 THB ≈ €2, 1 hour) lies inland.Day trip to Mu Ko Ang Thong (€39–58, 7–8 hours, snorkeling and kayaking, departing from Nathon Pier). |
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Food and restaurants
| In Bangkok, try Tom Yum Goong at Pee Aor (from €6–9), Pad Thai at Thip Samai (€2.3–5.1) and green curry at BO.LAN or Supanniga Eating Room (€12–18).Street food in Yaowarat (€1.5–3).Michelin-starred Jay Fai: dishes €15–25.Or Tor Kor market for premium fruit (€2–6 per portion). | In Ko Samui, sample seafood in Fisherman’s Village: Supattra Thai Dining (dishes €9–16), Coco Tam’s for pizza and drinks (€5–8 and cocktails €5–7).Authentic Thai at Phensiri Thai Bistro (dishes €3–6.5). Gaeng Som and Khao Yam. Bophut Walking Street (Fri, €1.5–3 per snack) and Lamai Sunday Market. |
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Climate and best time
| In Bangkok the climate is tropical: cool and dry from Nov–Feb 24–32°C, hot and humid Mar–May 28–36°C, rains May–Oct peaking in Sep–Oct (200+ mm/month).Humidity 70–80%.Air quality is worse in Jan–Mar (high PM2.5). Nov–Feb for walking among temples and markets. | In Ko Samui the dry season is Jan–Apr 26–32°C, water 27–29°C; main rains Oct–Dec (November over 300 mm).Winds temper the heat in Mar–Apr.Monsoons are milder in Jun–Jul than on the Andaman side. Jan–Mar for calm seas, snorkeling, and trips to Ang Thong.✓ Better |
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Transport and how to get there
| Bangkok has two airports: BKK (Suvarnabhumi) and DMK.Airport Rail Link €0.9–1.2 (25–30 min) to Phaya Thai.BTS/MRT €0.4–1.5 per ride; day pass €3.9. base fare €0.9 + tolls €1.8.From the airport to Sukhumvit 45–70 min.River boats Chao Phraya Express €0.4–1.2.✓ Better | Ko Samui has USM airport (Bangkok Airways): flights from BKK 1h05 at €90–160 one-way (high season €150–220). fly to Surat Thani €25–50 + bus+ferry €10–18 (3–4 hours). songthaew €1.3–2.6, taxis expensive (€10 for 6–8 km), scooters €4–6/day, cars €21–32/day. |
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Nightlife
| In Bangkok rooftop bars like Sky Bar Lebua (cocktails €12–16), clubs in RCA (Route66, Onyx, entry €5–13) and bars on Sukhumvit Soi 11.Khao San Road for backpackers until 02:00–04:00.Fast transfers with BTS/MRT until midnight, then taxis €3–8.✓ Better | In Ko Samui the scene is centered in Chaweng: Green Mango Club, Ark Bar (fire show) with drinks €5–7, closing around 02:00.In Fisherman’s Village a lounge vibe (€5–8 per cocktail).Party boat to Koh Phangan on Full Moon days (ferry €5–8). |
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For families with children
| In Bangkok, hits include SEA LIFE (€28), the indoor Funarium (€6–12), and Benjakitti Park with walkways (free).Sidewalks are often uneven: it’s better to use the BTS and malls like Iconsiam. Lumpini–Siam 3 km (10–15 min taxi €2–4). | In Ko Samui family-friendly beaches include Lipa Noi and Maenam (shallow waters).Water park Pink Elephant (adult €26, child €18, 3–4 hours). Big Buddha 30 min, Na Muang 1–2 hours.A child seat is necessary with rental cars (€4–7/day).Stroller-friendly in resorts.✓ Better |
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Beaches and nature
| Bangkok has no urban beaches.For nature, Bang Krachao (the city’s “green lung”) by bike (€3–5/day) and parks Lumpini/Benjakitti.Day trips to Ayutthaya (80 km, 1h20 by train €0.8–1.6) or Bang Saen (85 km, 1h30 by car €20–35 round trip). | Ko Samui offers Chaweng Beach (7 km of sand), Lamai, Silver Beach for snorkeling, and sunsets at Lipa Noi.The ring road is 51 km (1h30 by car).Excursion to Ang Thong for the Wua Talap viewpoint (500+ steps, 45–60 min).Private boat charter €180–350/group.✓ Better |
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Shopping
| In Bangkok: Chatuchak Market (Sat–Sun, 11,000+ stalls) T-shirts €4–8, spices €2–5. MBK for budget electronics, Siam Paragon and Iconsiam for brands. Rajawongse bespoke suits €260–470 (2–3 days).✓ Better | In Ko Samui shops are concentrated at Central Festival Samui (Chaweng) and markets like Fisherman’s Village (Fri) and Lamai Night Market. coconut oil (€3–5/100 ml), sarongs €4–8.Local tailors €130–240 per suit; quality varies. |
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Safety and practical tips
| In Bangkok beware of tuk-tuks from €0.5 that push shopping and “gem” tours.Use metered taxis and the Grab app.Avoid carrying lots of cash on Khao San at night. police 191, ambulance 1669.In Jan–Mar wear a mask for PM2.5. | In Ko Samui the main risk is traffic: wear a helmet (fine €12–15) and avoid scooters in the rain.Dangerous jellyfish Oct–Dec: carry vinegar and use suits.Strong currents at Lamai during monsoons. Bangkok Hospital Samui and Samui International Hospital. |
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How many days you need
| Bangkok: minimum 2–3 days for the Grand Palace, Wat Pho, Wat Arun, Chinatown, and a rooftop.Ideal 4–5 days to include Ayutthaya or floating markets (Damnoen Saduak 100 km away, 1h45). 3–4 attractions per day, transfers 15–30 min. | Ko Samui: minimum 3 days for Chaweng, Big Buddha, Na Muang.Ideal 4–6 days for Ang Thong, snorkeling at Silver Beach, and a sunset at Lipa Noi.Transfers 10–35 min; a lap of the island in 1h30 with stops. |
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How to combine the two destinations
| Flight BKK→USM with Bangkok Airways: 1h05, cost €90–160 one-way (20 kg checked bag included), door-to-door total 3–4 hours.Recommended check-in 90 min when departing from Suvarnabhumi.Frequency every 60–90 min in high season. | overnight train Bangkok→Surat Thani 2nd class A/C €22–26 (8–9 hours), then bus+ferry to Samui €10–18 (3–4 hours).Or bus+catamaran Lomprayah from Khao San: €30–45, 10–12 hours.Ideal to depart in the evening and arrive in the morning. |