Conditions in Hämeenlinna on 12 Sep
Over 27 days to swap
Road surface stays above freezing.
- Today lowest of the day: road surface 6.0 °C, air 4.0 °C
- Road surface at its worst: wet
- Lowest road surface temperature in the coming days: 4.6 °C (modelled)
- Air temperature today: 4.0 °C … 15.1 °C
The highest probability of freezing in the forecast period is 3 % (14 Sep).
10-day forecast
| Day | Conditions | Road surface, min | Freezing risk | Source |
|---|---|---|---|---|
| Sat 12 Sep | above freezing | 11.0 °C | 0 % | modelled |
| Sun 13 Sep | above freezing | 10.0 °C | 0 % | modelled |
| Mon 14 Sep | above freezing | 4.6 °C | 3 % | estimated |
| Tue 15 Sep | above freezing | 3.8 °C | 1 % | estimated |
| Wed 16 Sep | above freezing | 9.1 °C | 0 % | estimated |
| Thu 17 Sep | above freezing | 10.6 °C | 0 % | estimated |
| Fri 18 Sep | above freezing | 7.3 °C | 0 % | estimated |
| Sat 19 Sep | above freezing | 9.2 °C | 0 % | estimated |
| Sun 20 Sep | above freezing | 9.0 °C | 0 % | estimated |
| Mon 21 Sep | above freezing | 7.3 °C | 0 % | estimated |
The Conditions column states the road surface over one day, reading it off the freezing risk beside it: freezing (at least 60 %), borderline (50–60 %) or above freezing (under 50 %). The map's colour looks at the whole period, so a single day can differ from it. The road figure is the day's lowest estimate, not the air temperature. Today's row covers the rest of the day, not the whole day as the Today section above does. On a clear night the road surface cools below the air, so there can be ice while the air is still above zero. How this forecast is calculated.
Studded tyres
Studded tyres not allowed
The studded-tyre season opens 1 Nov.
The window for studs is the same across the country and is based on the calendar. Outside it, studs are allowed only when conditions require: the line above says whether that exception applies here. When are studded tyres allowed?
Nearby
Hämeenlinna is the 16th southernmost of the 32 cities listed here, at 61.1° north. The nearest listed city is Lahti, 57 km to the east.
The right answer changes over a few hundred kilometres on the same day. Nearby cities:
- Winter tyres in Lahti 57 km east
- Winter tyres in Hyvinkää 59 km south
- Winter tyres in Järvenpää 74 km south
- Winter tyres in Tampere 74 km north-west
- Winter tyres in Vantaa 92 km south
See the map of the whole country (all 309 municipalities) or read what the law says about winter tyres.
Forecast age
This page was built from the forecast updated . During the forecast season the map updates twice a day; this page updates with it.