Last updated: August 23, 2025
In Hellissandur, Iceland, the average temperature in April hovers around 4°C (39°F), creating a chilly atmosphere. Expect temperatures to range from a minimum of -7°C (20°F) to a maximum of 9°C (49°F). With an average precipitation of 107 mm (4.2 in) spread over 17 days, don’t forget your umbrella! Additionally, with an average humidity of 86%, be prepared for a damp and crisp experience.
In April in Hellissandur, the average temperature is 4°C (39°F). The maximum can reach 9°C (49°F) and the minimum can be as low as -7°C (20°F). Be prepared for chilly weather and dress warmly if you plan to travel during this time.
In Hellissandur in April, the precipitation amount is 107 mm (4.2 in) and occurs over 17 days.
In Hellissandur in April humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.
In Hellissandur in April, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Hellissandur, you can check the information here.
UV Risk Categories
Weather in Hellissandur varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Hellissandur, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 103 mm (4.1 inches) | 89% | low |
| February Weather | 2°C (35°F) | 113 mm (4.5 inches) | 89% | low |
| March Weather | 2°C (35°F) | 94 mm (3.7 inches) | 90% | low |
| April Weather | 4°C (39°F) | 107 mm (4.2 inches) | 86% | moderate |
| May Weather | 6°C (42°F) | 81 mm (3.2 inches) | 87% | moderate |
| June Weather | 8°C (47°F) | 63 mm (2.5 inches) | 85% | moderate |
| July Weather | 10°C (50°F) | 70 mm (2.8 inches) | 88% | moderate |
| August Weather | 10°C (51°F) | 69 mm (2.7 inches) | 88% | moderate |
| September Weather | 9°C (48°F) | 149 mm (5.9 inches) | 89% | moderate |
| October Weather | 6°C (43°F) | 102 mm (4.0 inches) | 88% | low |
| November Weather | 4°C (39°F) | 93 mm (3.6 inches) | 87% | low |
| December Weather | 3°C (37°F) | 92 mm (3.6 inches) | 87% | low |