Average annual temperature is 6.1 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -18.7 °C
Number of sunny days: 141 days
Number of rainy days: 168 days
Number of snow days: 56 days
Look at detailed online map of Vanha-Lahti
* Weather data for Vanha-Lahti Finland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.1 | 6.0 | 5.5 | 16.2 | 22.4 | 28.9 | 24.6 | 31.7 | 22.4 | 15.1 | 7.9 | 5.6 |
| Average daytime temperature (°C) | 0.8 | 0.6 | 0.6 | 8.8 | 13.7 | 19.7 | 19.6 | 20.0 | 17.8 | 6.8 | 1.2 | -2.5 |
| Average temperature (°C) | -0.7 | -1.2 | -2.4 | 3.7 | 9.8 | 15.7 | 16.4 | 16.8 | 14.9 | 4.8 | -0.5 | -4.2 |
| Average night temperature (°C) | -2.3 | -3.8 | -6.6 | -1.6 | 5.1 | 10.8 | 12.8 | 13.6 | 12.1 | 2.7 | -2.7 | -6.8 |
| Absolute minimum temperature (°C) | -13.5 | -13.3 | -18.7 | -17.5 | -0.8 | 5.1 | 10.0 | 10.6 | 6.2 | -5.2 | -13.9 | -15.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.0 | 10.0 | 13.0 | 16.0 | 18.0 | 19.0 | 19.0 | 17.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 6.5 | 9.0 | 11.8 | 14.7 | 17.5 | 19.2 | 18.3 | 15.8 | 12.9 | 10.0 | 7.3 | 5.7 |
| Daylight minimum duration (h) | 5.0 | 7.0 | 10.0 | 13.0 | 16.0 | 18.0 | 17.0 | 14.0 | 11.0 | 8.0 | 6.0 | 5.0 |
| Sunshine mean duration (h) | 1.3 | 3.1 | 5.7 | 10.8 | 13.4 | 16.0 | 13.0 | 9.5 | 8.2 | 5.2 | 1.0 | 0.3 |
| Precipitation (mm) | 68 | 32 | 95 | 35 | 44 | 26 | 155 | 185 | 90 | 130 | 78 | 27 |
| Sunny days | 11 | 14 | 8 | 18 | 20 | 20 | 5 | 6 | 10 | 10 | 9 | 10 |
| Rainy days | 14 | 5 | 10 | 12 | 9 | 10 | 26 | 25 | 20 | 19 | 14 | 4 |
| Snow days | 6 | 9 | 13 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 7 | 17 |
The best time to visit Vanha-Lahti during the most sunny months:
Months with the longest average daylight duration in Vanha-Lahti:
The largest precipitation sum in Vanha-Lahti is at