Tesla Service UK / Guides / Range by Season
Tesla range by season: summer vs winter
How much real-world range genuinely changes across the year in the UK, and why.
Last fact-checked: . General guidance — always check your own model's specifics and current official sources before relying on it for a decision.
The gap
How big is the summer-to-winter range gap really?
Most UK owners report somewhere between 15-30% less real-world range in cold winter conditions compared with a mild summer day, though the exact figure depends on the specific trip: short cold journeys where the battery and cabin never fully warm up lose proportionally more than a long motorway run where the car settles into a steady state.
This isn't a fault or a sign of degradation — it's the same physics affecting every EV, caused by reduced battery efficiency in the cold and the extra energy cabin heating draws that a petrol car gets largely for free from waste engine heat.
Why it happens
What's actually causing the drop?
Two separate effects stack together. Battery chemistry is measurably less efficient at low temperatures, so the same amount of stored energy delivers less usable range. Separately, heating the cabin and the battery itself (for charging and driving efficiency) is drawn from the same battery that also powers the drivetrain — unlike a petrol car, there's no free waste heat from an engine to repurpose.
Planning around it
How to plan for it rather than be caught out
A few habits make a real difference:
- Precondition the cabin and battery while still plugged in at home, so warming doesn't come out of your driving range.
- Use seat and steering wheel heaters rather than the cabin air heater where it's comfortable to do so.
- Build in a bigger buffer on longer winter trips — don't plan a route assuming summer range figures.
- Check charger reliability along your route in winter specifically; very cold weather can also affect charging speed on some fast chargers.