Last updated: August 22, 2025
In December, the average temperature in Hammarland, Åland Islands hovers around 2°C (36°F). Expect chilly days as temperatures can dip as low as -12°C (11°F), while the mercury rises to a maximum of 10°C (50°F). Precipitation is notable, with 63 mm (2.5 in) falling over 14 days, contributing to an average humidity level of 90%. Embrace the cool, damp atmosphere and prepare accordingly!
In December in Hammarland, the average temperature is 2°C (36°F), with maximums reaching up to 10°C (50°F) and minimums dipping as low as -12°C (11°F). Travelers should be prepared for chilly weather and pack accordingly to enjoy their time in Hammarland.
In Hammarland in December, the precipitation amount is 63 mm (2.5 in) over a span of 14 days.
In Hammarland in December humidity is 90%. With an average temperature of 2°C (36°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and damp, and turning a simple stroll into a test of endurance for travelers.
In Hammarland in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Hammarland.
UV Risk Categories
Weather in Hammarland varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hammarland, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 39 mm (1.6 inches) | 92% | low |
| February Weather | -1°C (31°F) | 32 mm (1.3 inches) | 90% | low |
| March Weather | 1°C (35°F) | 35 mm (1.4 inches) | 90% | moderate |
| April Weather | 4°C (40°F) | 24 mm (1.0 inches) | 85% | moderate |
| May Weather | 9°C (49°F) | 37 mm (1.5 inches) | 77% | moderate |
| June Weather | 15°C (60°F) | 30 mm (1.2 inches) | 76% | high |
| July Weather | 18°C (64°F) | 49 mm (1.9 inches) | 75% | high |
| August Weather | 17°C (63°F) | 53 mm (2.1 inches) | 78% | moderate |
| September Weather | 13°C (56°F) | 49 mm (1.9 inches) | 86% | moderate |
| October Weather | 9°C (48°F) | 73 mm (2.9 inches) | 90% | low |
| November Weather | 5°C (41°F) | 43 mm (1.7 inches) | 91% | low |
| December Weather | 2°C (36°F) | 63 mm (2.5 inches) | 90% | low |