Weather → Demand

Heating Degree Days across Europe

Temperature, HDD & CDD by country, weighted by share of EU gas consumption. 15-day forecast.

EU Gas-Weighted HDD (today)

1.7 HDD = max(0, 18°C − T_mean) — Higher = more heating demand = bullish gas

7-Day Temperature Forecast

ⓘ 10yr Normal

ⓘ Weighted curve

Days 8-15, HDD departure and model spread are Pro

The 5-to-7 day forecast lead is where weather actually moves TTF. Pro extends the curve to 15 days, plots HDD against the 10-year normal, and shows where GFS and ECMWF disagree.

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Today’s Forecast by Country

Country	Mean	Min	Max	HDD	Weight Gas Consumption Weight Approximate share of this country in total EU gas consumption, based on Eurostat 2023 data (~295 bcm). Total across tracked countries ≈ 96%.	Cities
🇩🇪 Germany DE	14.3°C	6.3°	20.1°	3.7	25%	Berlin, Munich
🇮🇹 Italy IT	21.6°C	14.8°	28.0°	0.0	19%	Rome, Milan
🇫🇷 France FR	14.3°C	11.6°	17.0°	3.7	11%	Paris

13 more countries in GasRadar Pro

Including Netherlands, Spain, Poland, Belgium, Romania and 8 others.

Pro shows the demand-weighted forecast for every tracked EU country, city by city, with HDD and CDD against the 10-year normal.

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Source: Open-Meteo (open-meteo.com) — Free weather API, no key required. HDD = max(0, 18°C - T_mean) when T_mean ≤ 15°C. CDD = max(0, T_mean - 24°C). Weights are approximate shares of EU gas consumption (Eurostat 2023). 10-year normals: 2015–2024 archive data.