Read the weather. Sail safely.
A weather course made for sailors
Learn to read weather charts, spot thunderstorms early, and make safe decisions on the water – step by step, practical, and available anytime.
🧪 Weather Lab
Play with the wind!
Hemisphere
Weather Pattern
💡 Move your mouse over the map to influence the wind.
⚠️ This is a simplified simulation – deviations from reality are possible. We are continuously working on improvements 🙂
Why weather knowledge is essential
Most sailing accidents happen due to a lack of weather understanding.
Sudden weather changes
The weather on the water can change within minutes. Those who can't read the signs get caught off guard.
Gusts and strong winds
Unexpected gusts are one of the most common causes of capsizes and accidents on the water.
Thunderstorm danger
Thunderstorms on the water are life-threatening. Recognizing the warning signs can save lives.
Poor route planning
Without weather understanding, passage planning and route choice are often guesswork rather than informed decisions.
What you'll learn in the course
Practical weather knowledge made for sailors. From the fundamentals to professional passage planning.
Sailing Meteorology Basics
The most important meteorological concepts for sailors
- Atmosphere and air pressure
- High and low pressure systems
- Fronts and frontal systems
- Understanding the Beaufort scale
Understanding wind
From the global wind system to local thermals
- Land and sea breeze circulation
- Recognizing and using thermals
- Predicting gusts
- Judging wind strength
Reading clouds
Clouds as a weather forecast in the sky
- Identifying cloud types
- Reading weather development
- Fair-weather vs. bad-weather clouds
- Spotting fronts in the sky
Thunderstorms & strong winds
Recognizing dangers and responding correctly
- Thunderstorm warning signs
- Calculating a safe distance
- How to behave during a thunderstorm
- Interpreting strong-wind warnings
Sea state & waves
Wave forecasting for safe passages
- Understanding wave formation
- Reading a sea-state forecast
- Swell vs. wind sea
- Dangerous wave patterns
Tides & currents
Tidal influence on navigation and sailing strategy
- Tidal calculations
- Navigating with currents
- Tidal range and tide tables
- Current during maneuvers
Weather charts & forecasts
Using professional weather forecasts
- Reading weather charts
- Understanding GRIB files
- Comparing weather models
- Judging forecast quality
Weather apps & tools
The best digital helpers for your passage planning
- Windy, PredictWind & co.
- GRIB viewers for on the go
- Weatherfax and Navtex
- Receiving offshore weather data
Practical know-how
Applying what you've learned in realistic scenarios
- Weather assessment before a passage
- Route planning with weather data
- Emergency weather scenarios
Weather Course Subscription
Choose the plan that fits you: Learn flexibly with a monthly subscription or secure the entire course with a one-time purchase – no recurring costs.
Trial Lessons
Get to know the course with free trial lessons
Free
- Trial Lessons
- Test interactive simulations
- No obligation & free
Monthly
Flexible
Full access to all content, cancel monthly
€20/month
- All 80+ Lessons and Quizzes
- Interactive Simulations
- Progress Tracking
- Meteorology Chatbot
- Unlimited AI Cloud Recognition
- Unlimited Surface Chart Analysis
- Certificate
Lifetime
One-time
Pay once, learn forever
€99one-time
- All features from the monthly subscription
- All current & future lessons
- No recurring payments
- 20% off Clearship.app annual plan (boat management)
A portion of every payment automatically goes to carbon removal projects.
Frequently asked questions from sailors
Have more questions? Use our contact form.
No, the course starts with the fundamentals. You need neither meteorological nor nautical background. Experienced sailors can jump straight to the advanced modules.
Absolutely! Understanding wind, thermals, and local weather phenomena can give you a decisive edge in races. Many successful racers rely on exactly this knowledge.
Yes, the course is optimized for desktop and tablet. It also works on smartphones, though some interactive animations are only shown on larger screens.
The meteorological fundamentals apply on any waters worldwide – wind, thermals, fronts and pressure systems follow the same principles everywhere. The examples focus primarily on European waters, from the Mediterranean and Adriatic to the Baltic and the alpine lakes, while also covering conditions found across the USA. Wherever you sail, you'll learn to read the weather of your sailing grounds.
Our course is designed specifically for water sports enthusiasts, with interactive visualizations and hands-on examples. Instead of dry theory, you learn from real sailing situations.
Yes, after successfully completing the course you receive a certificate that you can generate and download in your profile.
You set your own pace. Most participants finish the course in 3-6 weeks. You learn at your own rhythm.
Yes, on our gift page you can gift 1 to 5 months or lifetime access. The recipient receives a code by email that they can redeem in their own account.
Log in (or register for free) and enter the code in your profile under "Redeem gift code". Access is unlocked immediately.
Safe on the water – in any weather
Learn to read weather charts, spot thunderstorms early, and make the right decision – before it's too late.
No subscription required · Cancel anytime