# Weathermuffin — Marine Weather Early Warning > Marine weather early warning system with active monitoring for sailors. (iPhone/iPad app by Weathermuffin LLC.) - Source: https://appshunter.io/ios/app/weathermuffin/id6443474834 (this page in markdown: same URL + `.md`) - Developer: [Weathermuffin LLC](https://appshunter.io/developer/1646289232) - Category: Weather, Sports - Price: Free - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 11.0 · 28 MB - Languages: English - Released: 2023-01-05 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/weathermuffin/id6443474834/reviews.md ## What is Weathermuffin? Your Marine Weather Early Warning System™ Weathermuffin is the first weather app specifically tailored to mariners which considers your specific circumstances. With the novel WxHeadsUp™ active monitoring feature, Weathermuffin proactively tells you what conditions to look out for. Instantly see the big picture of what you, as a sailor, are concerned about. Why Weathermuffin? • The most relevant weather at a glance with WxHeadsUp™. Quickly see the most important weather factors expected to influence your specific situation. • See forecast conditions at your future location. Easily move forward and backward in time to see the weather in context with your anticipated position. • View satellite imagery and synoptic charts overlaid on a map. Get an unprecedented view of frontal weather systems with the powerful combination of satellite images and synoptic charts. • Monitor tropical cyclones and disturbances that may become cyclonic. • Enjoy more comfortable passages. Weathermuffin was designed for you by a fellow sailor. • Stay on top of the latest conditions while away from shore with Iridium GO! connectivity. WXHEADSUP™ We check your position, course, and speed for weather conditions in your vicinity and that you may encounter ahead. Results are reported back to you in seconds… way faster than downloading a bunch of GRiBs. in order to get the same information that Weathermuffin provides you in seconds, you would have to download and interpret at least 10 different GRiB layers. How long would that take you? Weathermuffin’s WxHeadsUp alerts actively monitor these conditions for you: • Wave Steepness • Confused Seas • Wind Opposing Current • High Current • Satellite Infrared • Lightning • Gustiness • Calm Winds • Sustained Wind Speed • Significant Wave Height • Precipitation • Visibility CYCLONES With timely data from leading government agencies, be on the lookout for hurricanes, typhoons, and other active and developing tropical cyclones. Available storm data includes: • Storm name and classification • Present and future storm track (position over time) • Maximum wind, gusts, and seas • Storm speed and direction of travel • 34-knot wind radius, 12 foot (3.5 meter) seas radius • Closest point of approach (CPA) and time to CPA • 48-hour and 7-day probability of cyclone development • Time that track and forecast were issued Plus, cyclones are optimized for quick download over Iridium GO! SYNOPTIC CHARTS Weathermuffin’s synoptic charts are produced by expert, professional meteorologists at NOAA. As a result, they depict information you won’t find in GRiB files, like the locations of fronts and the ITCZ. Weathermuffin offers the following synoptic charts (analyses and forecasts): • Surface • Wave Height/Direction • Wave Period/Direction • Wind/Wave • 500 MB • Sea Surface Temperature • Cyclone (Some features require a paid subscription.) Iridium GO! connectivity requires separate hardware and an active data subscription from Iridium. "Iridium GO!" is a trademark of Iridium Satellite LLC, which has not endorsed, sponsored, or otherwise affiliated with Weathermuffin LLC. Privacy Policy: https://weathermuffin.com/privacy/ Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - WxHeadsUp™ active monitoring - Forecast conditions at future locations - Satellite imagery and synoptic charts - Tropical cyclone monitoring - Iridium GO! connectivity - Wave steepness and wind alerts ## Frequently asked questions about Weathermuffin ### What is Weathermuffin's WxHeadsUp™ feature? WxHeadsUp™ is Weathermuffin's active monitoring feature that checks your position, course, and speed to alert you to relevant weather conditions you may encounter ahead. It provides information on wave steepness, confused seas, wind opposing current, and more, in seconds. ### Does Weathermuffin offer tropical cyclone tracking? Yes, Weathermuffin monitors hurricanes, typhoons, and other active or developing tropical cyclones. It provides storm name, classification, track, wind, seas, radius information, and probability of development. ### What kind of synoptic charts does Weathermuffin provide? Weathermuffin offers synoptic charts produced by NOAA meteorologists, including surface, wave height/direction, wave period/direction, wind/wave, 500 MB, sea surface temperature, and cyclone charts. These charts depict information like fronts and the ITCZ. ### Can I use Weathermuffin offline? The description mentions Iridium GO! connectivity for staying on top of conditions away from shore, which requires separate hardware and a data subscription. It does not explicitly state offline functionality for all features. ### What devices is Weathermuffin available on? Weathermuffin is available for iPhone, iPad, and iPod devices. It is designed for iOS. ### How often is Weathermuffin updated? The latest version of Weathermuffin is 1.2.6, last updated on October 13, 2023. This indicates regular updates are provided by the developer. ### What is the user sentiment for Weathermuffin? Weathermuffin has a rating of 5.0 stars from 2 ratings, suggesting very positive user sentiment based on the available data. ### Does Weathermuffin have ads? The provided data does not specify if Weathermuffin contains advertisements. However, some features require a paid subscription. ## Version history (last 5 releases) ### 1.2.6 — 2023-10-13 - Added tropical cyclones - Bug fixes, performance and stability improvements ### 1.2.5 — 2023-08-25 Minor bug fixes. ### 1.2.4 — 2023-08-14 - Added Satellite Infrared, Wind Opposing Current, and High Current WxHeadsUp™ alerts - Added advanced "experimental alerts" setting - Added annual subscription plan - Fixed: Downloading could get "stuck" or stop prematurely ### 1.2.3 — 2023-06-21 - Improved download speeds when online - Now shows position, course, and speed used to determine alerts - Download tab now shows spinner when downloading - Fixed: Map would sometimes not show projected future position of vessel - Fixed: Sometimes could not cancel download after re-attempt - Fixed: Downloads in the task log could sometimes be "stuck" showing a spinner - Fixed: App auto-downloads on startup over Iridium GO! - Fixed: Map could be blurry following app suspend & resume ### 1.2.2 — 2023-02-24 Bug fixes ## Apps similar to Weathermuffin | App | Rating | Price | Category | | --- | --- | --- | --- | | [Weather Forecast & Tides Radar](https://appshunter.io/ios/app/weather-forecast-and-tides-radar/id1661137282) | 4.6 (9) | Free | Weather | | [NOAA UHD Radar and NWS Alerts](https://appshunter.io/ios/app/noaa-uhd-radar-and-nws-alerts/id1660444741) | 5.0 (1) | Free | Weather | | [My Rain Gauge](https://appshunter.io/ios/app/my-rain-gauge/id1607155330) | 2.8 (4) | Free | Weather | | [Instant Marine Forecast Lite](https://appshunter.io/ios/app/instant-marine-forecast-lite/id1519785191) | 4.5 (2) | Free | Weather | | [Weather - The Weather forecast](https://appshunter.io/ios/app/weather-the-weather-forecast/id1583394515) | 5.0 (3) | Free | Weather | | [WDTV 5 First Alert Weather](https://appshunter.io/ios/app/wdtv-5-first-alert-weather/id1360394116) | 4.8 (651) | Free | Weather | ## More apps by Weathermuffin LLC - [Ocean Atlas](https://appshunter.io/ios/app/ocean-atlas/id1667178191) All apps by Weathermuffin LLC: https://appshunter.io/developer/1646289232 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*