April Weather in Grundarhverfi, Iceland

Last updated: August 23, 2025

In April, the average temperature in Grundarhverfi, Iceland hovers around 4°C (39°F). Expect chilly days with minimums dipping to -10°C (15°F), while highs can reach up to 14°C (58°F). With 123 mm (4.8 in) of precipitation spread over 17 days, you'll want to keep your umbrella handy. Additionally, the air tends to be quite damp, with an average humidity of 87%.

April Temperature in Grundarhverfi

In April in Grundarhverfi, the average temperature is 4°C (39°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -10°C (15°F). Be prepared for chilly weather and pack layers if you're planning to travel during this time.

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

The chart illustrates April temperature patterns in Grundarhverfi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grundarhverfi, April typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (58°F) and lows dropping to around -10°C (15°F).

Data source: Temperature data for Grundarhverfi generated using information from the Copernicus Climate Change Service.

April Precipitation in Grundarhverfi

In Grundarhverfi in April, the precipitation amount is 123 mm (4.8 in) over a span of 17 days.

April Precipitation Trends in Grundarhverfi

The chart displays monthly precipitation patterns in Grundarhverfi, 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 Grundarhverfi, April typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Grundarhverfi

In Grundarhverfi in April, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

April Average Humidity in Grundarhverfi

This chart illustrates the average monthly humidity levels in Grundarhverfi, 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 Grundarhverfi is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Grundarhverfi

In Grundarhverfi 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 Grundarhverfi for better planning.

Maximum UV Index Levels in Grundarhverfi for April

The chart shows the monthly maximum UV Index (UVI) for Grundarhverfi 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 Grundarhverfi typically reaches 4, which falls under the moderate exposure category.

Data source: Grundarhverfi 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 Grundarhverfi Compares to Other Months

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

This table compares monthly weather conditions in Grundarhverfi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	118 mm (4.6 inches)	96%	low
February Weather	-1°C (31°F)	131 mm (5.1 inches)	95%	low
March Weather	1°C (33°F)	106 mm (4.2 inches)	94%	low
April Weather	4°C (39°F)	123 mm (4.8 inches)	87%	moderate
May Weather	7°C (44°F)	118 mm (4.6 inches)	85%	moderate
June Weather	9°C (49°F)	94 mm (3.7 inches)	81%	high
July Weather	11°C (53°F)	76 mm (3.0 inches)	86%	high
August Weather	11°C (52°F)	83 mm (3.3 inches)	88%	moderate
September Weather	8°C (47°F)	162 mm (6.4 inches)	92%	moderate
October Weather	5°C (41°F)	94 mm (3.7 inches)	93%	low
November Weather	1°C (34°F)	105 mm (4.1 inches)	94%	low
December Weather	0°C (32°F)	107 mm (4.2 inches)	95%	low