When To Go · Destination Guide
Wreck dives and day-trip reefs near Bangkok, with Navy-managed snorkeling in Sattahip
Updated Jan 23, 2026 • 22 sources
When to go
Pattaya is warm yearround, but the most predictable water time is usually the dry season from November April.
Best overall window
Calmer seas and better odds of clear water. Water often sits around 28°C.
Outside that window
More frequent rain and wind. Expect more cancellations and shorter windows between squalls.
Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.
The overall row stays visible so you can compare it against the currently selected scope.
| Scope | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | Overall - Jan: Best | Overall - Feb: Best | Overall - Mar: Best | Overall - Apr: Best | Overall - May: Good | Overall - Jun: Tradeoffs | Overall - Jul: Tradeoffs | Overall - Aug: Tradeoffs | Overall - Sep: Tradeoffs | Overall - Oct: Good | Overall - Nov: Best | Overall - Dec: Best |
These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.
Dry-season wildlife uptick
Best for Scuba, Snorkel
Nov to Apr
The dry season has the calmest seas and is often the best window for consistent reeffish action, rays, and occasional turtle sightings on offshore days.
Songkran and Wan Lai in Pattaya
Best for Topside
Apr
Thailand's New Year water festival peaks midApril, with Pattaya's extended Wan Lai celebrations typically around April 1819.
Pattaya International Fireworks Festival
Best for Topside
Nov
A major Pattaya Beach Road event in late November, usually run over two evenings with fireworks and crowds along the waterfront.
Sea turtle conservation visits in Sattahip
Best for Topside, Snorkel
Year-round
Visit the Royal Thai Navy Sea Turtle Conservation Center to learn about hatchlings and rehabilitation.
Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.