
Trading on climate using a climate prediction market platform, basically means you'll trade contracts tied to potential future outcomes.
This guide will introduce you to the major climate prediction sites like Kalshi and Polymarket. We’ll describe how the markets work, the different contract types, and fees. We’ll also compare these sites directly, discuss their pros and cons, and help you with tips for trading your first climate prediction. There's a lot to learn here, so let's get started.
In climate markets, you predict the outcomes such as temperature thresholds, rainfall totals, snowfall amounts, or seasonal deviations. You buy and sell contracts depending on whether these climate events meet certain specific criteria. If you’re familiar with how election prediction markets work, the process is similar here.
Climate prediction markets operate through event contracts that settle based on real-world data. Traders can buy and sell contracts that payout if a given outcome does or doesn’t happen. The market’s supply and demand drive price changes, and each market is built around a clear question with a verifiable settlement point. This keeps everything transparent and ensures resolutions are factual.
These contracts usually pay out $1 if correct, and nothing if you’re wrong. You can usually purchase a contract at anything between $0.01 and $0.99, depending on how the market feels the specific event is likely to occur. You can think of it as trading shares in a future fact, like “Will Chicago hit 90°F on July 4th?”
Common contract types include predictions of temperature levels, precipitation events like storms or rainfall, and both short-term weather and long-term climate trends. When you’re checking climate prediction markets, you’ll see event contracts related to daily highs in cities like weekly rain totals in Houston, or first snowfall dates in New York. Long-term ones cover El Niño indices or hurricane landfalls. As you may expect, these markets appeal to those interested in data-driven forecasts and global environmental changes.
Trading climate contracts attracts the kind of person who’s looking to leverage their knowledge of weather patterns and environmental data. The focus on measurable outcomes and long-term trends draws traders who value empirical data. Many use historical patterns, like past heat waves on energy prices, to sharpen their margins of accuracy. Others blend it with technical charts for entry points.
Of course, no amount of research can guarantee results. But trading these contracts can be a fun activity for people who enjoy climate science in general.
Each climate prediction market covers a specific weather or environmental outcome. You can check out the full complete guide to prediction markets to learn more, but the following summary of the main types will help you choose where to focus your expertise as a trader.
Precipitation and temperature contracts allow you to trade based on yearly or monthly rain and temperature thresholds, along with seasonal anomalies and extreme events. Traders can buy outcomes for specific temperature ranges or whether a weather event exceeds a mark. Contract prices shift dynamically as new meteorological data is released.
These markets focus on carbon emissions metrics, climate-policy announcements, and other environmental indicators. Market prices adjust based on verified data like government reports or scientific measurements. These contracts, therefore, attract traders monitoring regulatory and environmental shifts closely.
You can also trade contracts tied to the likelihood, intensity, or frequency of natural disasters, such as wildfires, hurricanes, or flooding events. Such contracts usually reference measurable thresholds, like wildfire acreage, storm categories, or earthquake strength. Data and contract outcomes instantly update as new satellite imagery becomes available.
Before you explore prediction markets, you need to consider site reliability, market depth, data transparency, user experience, and more. Kalshi and Polymarket stand out on various fronts, and we’ll highlight their specific strengths as two of the best sites for trading climate predictions:
Kalshi is a prediction site where climate contracts are legally structured under CFTC oversight, providing strong transparency and consumer protection. It offers an extensive range of markets tied to temperature thresholds, precipitation events, and climate anomalies verified by trusted U.S. weather agencies.
Users enjoy a polished interface that simplifies contract selection, priced dynamically based on supply and demand. Contracts typically run from a single day to full seasons, with clear yes/no resolution criteria. Fees are straightforward and competitive, with no hidden costs. Kalshi’s recent international expansion includes a global liquidity pool boosting trade volumes and deeper markets, with trading volume hitting $4.4 billion in October 2025 alone. Before trading, users should carefully review settlement rules to avoid surprises.
Polymarket is a leading predictions market platform focusing on real-time event contracts, including contracts tied to weather and climate indicators. In 2025, Polymarket generated $4.1 billion in volume for October alone and regularly hosts over 247,000 weekly active users, showcasing vibrant market participation.
The platform features diverse climate prediction markets (from temperature records to storm likelihoods) with prices that adjust instantly to new data releases such as NOAA or IPCC reports. Transparency and clear event formats facilitate easier user comprehension and engagement.
Polymarket once exited the US due to concerns over the legal status of prediction markets. However, the platform is set to return to the US under a new legal framework soon, and is likely already available by the time you read this.
You need to look at things like market availability, usability, pricing transparency, and the quality of data tools to choose the right platform for climate prediction markets. Let’s take a look at some of these features in greater detail.
Kalshi offers over 100 active weather prediction markets, spanning general temperature thresholds to very specific weather events and seasonal anomalies across U.S. cities. Since 2021, it has seen $234 million traded on climate contracts, with $125 million in the first nine months of 2025 alone. Polymarket offers a wide selection too, but leans slightly toward broader, high-interest climate topics, with some niche prediction markets appearing less frequently.
Kalshi’s interface is designed for ease of use, with straightforward menus, clear contract descriptions, and accessible market histories. It supports beginners well by providing official weather data references and educational support that make interpreting market prices much easier.
Polymarket’s decentralized model features a modern, crypto-style design that may feel complex for newcomers. While it offers extensive data visualization and real-time updates, navigation requires some familiarity with blockchain and cryptocurrency sites, making it less beginner-friendly.
Climate prediction prices on Kalshi accurately reflect supply and demand for contracts, and the fees are clearly shown in the trade costs. During periods of market volatility, prices move with a 0.29 open interest-to-volume ratio for fast turnover, something that gives users a clear view of risk and reward. Polymarket’s pricing also moves responsively at a slightly stickier 0.38 ratio, but includes blockchain transaction fees that can fluctuate, leading to some uncertainty on total expenses.
Access to real-time, reliable climate data is crucial for making informed prediction trades. Kalshi integrates official weather service data directly for settlements, supported by forecasting tools and market analysis charts. Polymarket, on the other hand, relies on multiple data feeds, including NOAA and IPCC sources. You also get rich visual tools, but the site does require users to juggle crypto wallets and transaction confirmations.
| Site | Climate prediction types | Liquidity level | Fee structure | Ease of use |
| Kalshi | Temperature, Precipitation, Climate events | Moderate to high | Regulated, Transparent | Beginner-friendly |
| Polymarket | Weather events, Climate trends | Variable, generally good | Crypto fees, Transparent | Crypto-savvy users |
Getting started with your first trade is simple. We’ve broken down the process into these seven steps to get you started:
Click the banners on this page to sign up with Kalshi or Polymarket.
Verify your account for full access to the site.
Deposit funds via bank transfer or approved methods.
Browse climate prediction markets like temperature thresholds for precipitation events.
Select a contract, review the yes/no question, and the settlement data source.
Buy contracts based on your prediction, monitoring the prices as they shift.
That’s it, it’s all it takes to get started. You can now decide whether to hold until settlement, when official data like NOAA reports determines your returns, or to sell the contract earlier as the price fluctuates.
Now that you know how how event predictions trading works, let’s take a look at the pros and cons of trading climate contracts specifically:
Sites like Kalshi and Polymarket allow you to trade contracts that pay out if a given climate event happens or doesn't happen. These climate prediction markets can be fun to engage with, especially if you're someone who already knows a lot about the weather.
Between the two sites, both have their merits, but Kalshi is a bit more beginner-friendly. While Polymarket offers better support for traders looking to use crypto.
Ready to start trading climate predictions? You can use one of the banners on this page to create your account and get started.
Sites like Kalshi and Polymarket allow you to trade contracts based on measurable climate outcomes like temperature or precipitation. These contracts will settle for a fixed amount if a given event does or doesn't happen, depending on the type of contract you bought.
Contracts settle using official data from agencies like the NOAA or the National Weather Service. If the climate event occurs by contract terms, winning contracts pay out — usually — $1 each, and losing contracts expire without worth.
Review if the platform is regulated or transparent, check prediction market variety and data sources, analyze fees and pricing clarity to make sure there are no hidden fees in event trading, and confirm ease of use.