Climate Calendar LIVE

Stop guessing the weather. Start calculating the probability. Plan your outdoor events using 30 years of historical climate data.

Weather forecasts are only accurate for about 10 days. But when you're planning a wedding, festival, or corporate retreat 12 months in advance, you don't need a forecast—you need a climate analysis. Climate Calendar uses decades of peer-reviewed data to help you make smarter planning decisions.

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The Science of Probability

Climate Calendar doesn't try to predict the future. Instead, it analyzes the past to give you a statistically sound look at what's likely to happen.

• 30 Years of History: We use the ERA5 reanalysis data—the gold standard in climate science—to look back at three decades of weather patterns for any point on Earth.
• Rainfall Probability: Discover the exact percentage chance of rain for your specific date based on historical consistency.
• Temperature Ranges: See the "real-feel" temperature extremes (Heat Index and Wind Chill) to ensure guest comfort.
• Wind & Sky Conditions: Calculate the likelihood of high-wind events or overcast skies that could impact photography or outdoor setups.

Weather vs. Climate

There is a fundamental difference between a weather forecast and a climate model.

The 10-Day Horizon

Modern meteorology is incredible, but chaotic systems mean that small errors in initial measurements grow exponentially. This makes traditional weather forecasts nearly useless beyond the 14-day mark.

The Power of Averages

While we can't tell you if it will rain on June 12th next year, we can tell you that for the last 30 years, it has rained on that date only twice in your specific location. This 6.6% probability is the most accurate piece of data available for long-term planning.

Open Data, Total Privacy

Like all MubergApps, Climate Calendar is built with a deep respect for your privacy and a commitment to open-source tools.

• No Tracking: We don't track your location searches or event dates. Your planning is your business.
• Powered by Open-Meteo: We utilize the Open-Meteo API, which provides high-resolution climate data without the need for proprietary, tracking-heavy weather APIs.
• No Account Required: Jump straight into the data. No login, no email, no barriers.

Plan With Confidence

Don't leave your big day to chance. Use the same data professional event planners and agriculturalists use to mitigate risk and ensure a successful event.

Open Climate Calendar

Data Sources & Methodology

1. Reanalysis Data: Hersbach, H., et al. (2020). "The ERA5 global reanalysis." Quarterly Journal of the Royal Meteorological Society.
2. Forecast Skill Limits: Zhang, F., et al. (2019). "What Is the Predictability Limit of Midlatitude Weather?" Journal of the Atmospheric Sciences.
3. Climate Normals: World Meteorological Organization (WMO) standards for 30-year climate averages.
4. Open Source API: Open-Meteo.com - High-resolution meteorological data.