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April Weather in Alftanes, Iceland

Last updated: August 23, 2025

In April, the average temperature in Alftanes, Iceland hovers around 4°C (40°F). Temperatures can dip as low as -9°C (16°F) and rise to a maximum of 13°C (56°F). Expect 138 mm (5.4 in) of precipitation spread over about 17 days, contributing to an average humidity of 81%. Prepare for a chilly, yet moisture-rich experience!

April Temperature in Alftanes

In April in Alftanes, the average temperature is 4°C (40°F). Maximums can reach 13°C (56°F) and minimums can be as low as -9°C (16°F). Be sure to pack warm clothing and suitable gear if you're planning to travel during this time.

April Weather in Alftanes: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Alftanes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alftanes, April typically has an average temperature of 4°C (40°F), with highs reaching up to 13°C (56°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec333335404449525247423634
Data source: Temperature data for Alftanes generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Alftanes

In Alftanes in April, the precipitation amount is 138 mm (5.4 in) spread over 17 days.

April Precipitation Trends in Alftanes

The chart displays monthly precipitation patterns in Alftanes, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Alftanes, April typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec118135105138124978190163111112114
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Alftanes

In Alftanes in April humidity is 81%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that can make traveling quite uncomfortable, as the cold air clings uncomfortably to your skin and the moisture can quickly sap your body heat.

April Average Humidity in Alftanes

This chart illustrates the average monthly humidity levels in Alftanes, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Alftanes is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%85%81%83%82%86%87%87%88%85%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Alftanes

In Alftanes 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 Alftanes, you can check the information here.

Maximum UV Index Levels in Alftanes for April

The chart shows the monthly maximum UV Index (UVI) for Alftanes in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Alftanes typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356643211
Data source: Alftanes April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Alftanes Compares to Other Months

Weather in Alftanes varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Alftanes, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Alftanes, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)118 mm (4.6 inches)84%low
February Weather1°C (34°F)135 mm (5.3 inches)82%low
March Weather2°C (35°F)105 mm (4.1 inches)85%low
April Weather4°C (40°F)138 mm (5.4 inches)81%moderate
May Weather7°C (44°F)124 mm (4.9 inches)83%moderate
June Weather9°C (49°F)97 mm (3.8 inches)82%high
July Weather11°C (53°F)81 mm (3.2 inches)86%high
August Weather11°C (52°F)90 mm (3.6 inches)87%moderate
September Weather8°C (47°F)163 mm (6.4 inches)87%moderate
October Weather5°C (42°F)111 mm (4.4 inches)88%low
November Weather2°C (36°F)112 mm (4.4 inches)85%low
December Weather1°C (34°F)114 mm (4.5 inches)84%low

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