Guide · For drivers in Estonia
When is the right time for a tire change?
Estonia's variable climate requires attention. Here is everything you need to know – from tread depth to DOT codes.
Seasons
Seasonal rules and recommendations
Switching to winter tires
We recommend scheduling the change as soon as daily average temperature drops below +7°C. This way you avoid early snow and dangerous traffic conditions.
Exception in winter conditions: Oct 1 – Apr 30
Non-studded winter tires: allowed year-round
Switching to summer tires
Summer tires are allowed from March 1st, but we suggest waiting until nighttime sub-zero temperatures pass. Driving studded tires on warm asphalt extends braking distance.
Exception if winter conditions persist: until Apr 30
Our recommendation: over +7°C daily average
Why it matters
Why change at the right time?
Winter compound becomes too soft in warm weather, extending braking distance and fuel consumption. Summer tires harden like plastic in cold weather, losing grip even on dry asphalt.
Book when average daily temperature falls below +7°C (autumn) or rises above +7°C (spring).
The rule is simple: +7°C is the limit - in both directions.
Below +7°C: winter tires. Above +7°C: summer tires.
Tread depth
Tread depth and safety limits
By law, the minimum tread depth for summer tires is 1.6 mm and for winter tires 3.0 mm. In reality, these are absolute minimums where tires are legal but no longer safe.
Tire age
When is a tire too old?
Tread depth isn't everything. Both summer and winter tires lose chemical elasticity over time - known as "hardening". This is when soft, grippy rubber turns into hard, slippery plastic.
Summer tires and hydroplaning
A hardened old summer tire cannot bind to wet surfaces, drastically increasing aquaplaning risks at low speeds.
Winter tires and braking distance
A winter tire's main strength is softness in freezing temps. Old hard rubber loses grip on ice and snow, extending braking distances by dozens of meters.
Estonian climate accelerates aging
Estonia's fluctuating climate, UV rays, and temperature shifts accelerate aging. Safety is worth more than squeezing extra seasons from expired tires.
Our recommendation: replace tires if they are older than 5 years — regardless of tread depth.
DOT Code
How to read the DOT code?
Every tire sidewall features a DOT code – a 4-digit number inside an oval showing the manufacturing date.
Need help assessing tire aging?
Our technician checks your tire condition during service and provides an on-site assessment.
Time for a tire change?
We come to you – driveway, office parking lot, or summer house.