Last updated: March 2, 2024
The weather in Lahti, Finland, during January is characterized by an average temperature of -4°C (25°F). Highs can soar to 4°C (39°F), while lows may dip to -20°C (-4°F). Typically, the humidity level in Lahti throughout January hovers around 98%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Lahti averages 49 mm (1.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 6 hours 32 minutes of daylight, with the sun shining for approximately 1 hours 24 minutes each day. Additionally, there is a 3% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Lahti reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 09:00 and 11:00, during which unprotected skin may burn in as little as 45 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||