T-Shirt Weather. See the multi-day forecast for any city on a world map

Name: T-Shirt Weather. See the multi-day forecast for any city on a world map
Availability: InStock
Author: lowkeyokay

by lowkeyokay·Jul 25, 2026·1 point·0 comments

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AI Analysis

●●SolidCozySolve My Problem

Finally a map that answers 'where can I wear shorts?' instead of just showing raw temperatures.

Strengths

•Redis caching layer prevents hammering Open-Meteo API during heavy map interaction.
•Zoom-dependent city density keeps the interface clean from capitals to small towns.
•Simple binary toggle transforms complex meteorological data into actionable travel plans.

Weaknesses

•Niche utility that most users will only need a few times per year.
•Lacks advanced filtering for humidity, wind, or specific activity types beyond temperature.

Post Description

My family and I were trying to plan a short summer escape from the cold, grey Danish summer — somewhere it was actually warm enough for a t-shirt. I couldn't find a good way to just see that at a glance, so I built one.

It's a world map of multi-day forecasts. Zoom out for capitals, zoom in and smaller cities fill in. There's a "t-shirt weather" toggle that highlights the places that are warm and dry enough for just a T-shirt. It's proven quite useful for us.

Data is from Open-Meteo, city data from GeoNames. The stack is Nuxt + MapLibre GL, with fairly heavy Redis caching so I'm not hammering Open-Meteo on every pan/zoom.

Hope someone else finds it useful. Have a great summer!