Best bases
These are the base choices that should replace generic one-size-fits-all city copy.
Best bases
| Area | Best for | Watch outs | Transport logic | Walkability or spread | Caveat |
| Historical island | ruins, cycling, first-timers | heat exposure | bike/tuk-tuk | compact island, sites spread | heat/rain/flood |
|---|
| Railway station / east bank | rail day trips | less atmosphere | rail + ferry/tuk-tuk | compact | rain |
|---|
| Riverside | slower overnight stays | flood sensitivity | road/boat | spread | river levels |
Season windows
Use static season framing to narrow the trip shape, then let daily weather, AQI, ferries, and events stay live.
Season windows
| Window | Guidance |
| Best | November–February |
|---|
| Acceptable with caveats | March–May heat, May–October rain-aware travel |
|---|
| High risk | heat exposure, lowland rain/flood, bike comfort |
Source candidates
These sources back the packet even when they are not all wired into live observations yet.
Source candidates
| Source | Type | Why it matters | Supports |
| TAT Phra Nakhon Si Ayutthaya | official | official city identity | static copy |
|---|
| UNESCO Historic City of Ayutthaya | public | World Heritage basis | static copy |