Last updated: March 2, 2024
The weather in Lahti, Finland, during April is characterized by an average temperature of 3°C (38°F). Highs can soar to 15°C (60°F), while lows may dip to -7°C (19°F). Typically, the humidity level in Lahti throughout April hovers around 87%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Lahti averages 48 mm (1.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 44 minutes of daylight, with the sun shining for approximately 11 hours 36 minutes each day. Additionally, there is a 41% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Lahti reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 1 | 1 | 2 | 3 | 3 | 4 | 4 | 4 | 3 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||