Last updated: August 23, 2025
In April, the average temperature in Karttula, Finland hovers around 2°C (35°F), creating a chill in the air. Expect minimums to dip as low as -15°C (5°F), while occasional warm spells can reach up to 20°C (69°F). During this month, precipitation averages 44 mm (1.7 in) over about 10 days, contributing to an overall average humidity of 87%. Be prepared for a damp, cool experience!
In April in Karttula, the average temperature is 2°C (35°F). Maximums can reach 20°C (69°F) and minimums can be as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Karttula in April, the total precipitation amount is 44 mm (1.7 in) over the course of 10 days.
In Karttula in April, humidity is 87%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling feel uncomfortable and heavy, as each breath carries a hint of the cold, moist air that lingers around you.
In Karttula in April, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Karttula for better planning.
UV Risk Categories
Weather in Karttula varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Karttula, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 49 mm (1.9 inches) | 99% | low |
| February Weather | -7°C (20°F) | 42 mm (1.7 inches) | 97% | low |
| March Weather | -3°C (26°F) | 41 mm (1.6 inches) | 95% | moderate |
| April Weather | 2°C (35°F) | 44 mm (1.7 inches) | 87% | moderate |
| May Weather | 8°C (47°F) | 54 mm (2.1 inches) | 78% | moderate |
| June Weather | 15°C (60°F) | 59 mm (2.3 inches) | 74% | high |
| July Weather | 17°C (63°F) | 79 mm (3.1 inches) | 80% | high |
| August Weather | 15°C (60°F) | 98 mm (3.9 inches) | 85% | moderate |
| September Weather | 10°C (50°F) | 91 mm (3.6 inches) | 91% | moderate |
| October Weather | 5°C (41°F) | 86 mm (3.4 inches) | 95% | low |
| November Weather | 1°C (33°F) | 75 mm (2.9 inches) | 94% | low |
| December Weather | -4°C (25°F) | 67 mm (2.6 inches) | 98% | low |