Travel tool

Packing List

Generate a destination-specific packing list from the 7-day weather forecast. Adapts to cold, cool, warm, or hot trips: plus your planned activities.

Activities

How the list is built

The list uses the coldest quartile of forecast nights; one shivering evening is enough to make the whole trip feel under-prepared, and flags rain if any day forecasts at least 30% precipitation. Thresholds live in src/lib/tools/packing-list.ts; tweaking them is a single-file change.

How this list is generated

The checklist is assembled from the destination city's measured monthly climate record: average highs and lows, rain days, and humidity from TTDI's weather corpus. A January week in Helsinki and a January week in Bangkok produce different lists because the measured weather is different, not because a template guessed the season.

Trip length scales quantities and the layers logic follows the temperature spread: a city that swings fifteen degrees between afternoon and midnight gets a layers reminder even in a warm month. Print it, check things off, or copy it into your notes.

Your selections stay in the browser and are never uploaded.