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.
Seasonal rules and recommendations
Autumn → Winter
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.
- Winter tires mandatory: Dec 1 – Mar 1
- Studded tires: allowed Oct 15 – Mar 31
- Exception in winter conditions: Oct 1 – Apr 30
- Non-studded winter tires: allowed year-round; only tires with the three-peak mountain snowflake symbol (3PMSF) count as winter tires
Spring → Summer
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.
- Studded tires allowed until Mar 31
- Exception if winter conditions persist: until Apr 30
- Our recommendation: over +7°C daily average
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).
Winter tire in warm weather
Compound too soft → longer braking distance, higher fuel usage
Summer tire in cold weather
Hardens like plastic → loses grip even on dry asphalt
Studded tire on warm asphalt
Wears down roads, significantly increases braking distance
The rule is simple: +7°C is the limit - in both directions.
Below +7°C: winter tires. Above +7°C: summer tires.
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.
Legal minimum
Legal, but dangerous
Replace
Plan replacement now
Legal minimum
Legal, but dangerous
Replace
Plan replacement now
Regardless of tread
Plan replacement now
Time for a tire change?
We come to you – driveway, office parking lot, or summer house.
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.
How to read the DOT code?
Every tire sidewall features a DOT code – a 4-digit number inside an oval showing the manufacturing date.
- 12
- Production week — week 12 (March)
- 22
- Production year — 2022
- Result
- Tire was made in March 2022. Expiration date March 2027.
Need help assessing tire aging?
Our technician checks your tire condition during service and provides an on-site assessment.