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MeltemiFree solves a classic Greek summer nightmare: traveling 45 minutes to a beach only to be sandblasted by 6-Beaufort Meltemi winds and 2-meter waves. Unlike generic weather apps, MeltemiFree uses a vector physics engine that calculates the angular difference between live wind vectors, wave swell height, and a beach's exact coastal facing angle. Features: • 100% Calm shelter percentage • Interactive Leaflet map & GPS • City geocoding & radius search • Pure bilingual EL/EN
Hey Product Hunt community! 👋
I built MeltemiFree out of sheer personal frustration.
During Greek summer, seasonal northern winds (the "Meltemi") can ruin a perfectly planned beach day. You get to the coast expecting crystal-clear water, only to be met with 6-Beaufort gusts and rough waves.
Standard weather apps only tell you generic wind speeds, but they don't tell you if a specific bay or beach is actually sheltered. So, I decided to code a solution!
How it works:
MeltemiFree doesn't just display weather data—it runs a vector math model comparing live Open-Meteo wind vectors and wave swell heights against coastal orientation angles. A beach facing away from the wind angle gets calculated as near 100% calm, while an onshore beach gets flagged with high-wave warnings.
The Tech & The Story:
Built with Next.js 15, React 19, Tailwind v4, Leaflet.js, and OpenStreetMap APIs. Prompting the UI was a breeze, but getting (with the help of AI) to calculate clean angular differences, without hallucinated trigonometry was a fun engineering challenge!
It’s 100% free, ad-free, and bilingual (English/Greek). If you're traveling to Greece this summer, test it out and let me know your thoughts! 🏖️☕
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About MeltemiFree on Product Hunt
“Find calm, wind-sheltered beaches in Greece”
MeltemiFree was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #108 on the daily leaderboard. MeltemiFree solves a classic Greek summer nightmare: traveling 45 minutes to a beach only to be sandblasted by 6-Beaufort Meltemi winds and 2-meter waves. Unlike generic weather apps, MeltemiFree uses a vector physics engine that calculates the angular difference between live wind vectors, wave swell height, and a beach's exact coastal facing angle. Features: • 100% Calm shelter percentage • Interactive Leaflet map & GPS • City geocoding & radius search • Pure bilingual EL/EN
MeltemiFree was featured in Web App (123.3k followers), Travel (42.4k followers) and Developer Tools (517.5k followers) on Product Hunt. Together, these topics include over 128.6k products, making this a competitive space to launch in.
Who hunted MeltemiFree?
MeltemiFree was hunted by Meltemifree. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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