May Weather in Hoefn, Iceland

Last updated: August 23, 2025

In Hoefn, Iceland, the average temperature in May hovers around 5°C (41°F), with a minimum of -2°C (29°F) and a maximum reaching 13°C (56°F). Be prepared for a wet month, as 147 mm (5.8 in) of precipitation can be expected over 17 days. You'll also find the average humidity quite high at 92%, making for a crisp and damp atmosphere.

May Temperature in Hoefn

In May in Hoefn, the average temperature is 5°C (41°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -2°C (29°F). This weather makes it essential for travelers to pack warm clothing and be prepared for chilly conditions.

May Weather in Hoefn: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Hoefn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hoefn, May typically has an average temperature of 5°C (41°F), with highs reaching up to 13°C (56°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Hoefn

In Hoefn in May, the precipitation amount is 147 mm (5.8 in) over a span of 17 days.

May Precipitation Trends in Hoefn

The chart displays monthly precipitation patterns in Hoefn, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Hoefn, May typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Hoefn

In Hoefn in May humidity is 92%. With an average temperature of 5°C (41°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable and dampening the spirits of those unprepared for the chill.

May Average Humidity in Hoefn

This chart illustrates the average monthly humidity levels in Hoefn, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Hoefn is approximately 92%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Hoefn

In Hoefn in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hoefn, you can refer to this Hourly UV Index in Hoefn.

Maximum UV Index Levels in Hoefn for May

The chart shows the monthly maximum UV Index (UVI) for Hoefn in May, 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 May, the maximum UV index in Hoefn typically reaches 6, which falls under the high exposure category.

Data source: Hoefn May 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 May Weather in Hoefn Compares to Other Months

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

This table compares monthly weather conditions in Hoefn, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	152 mm (6.0 inches)	97%	low
February Weather	1°C (34°F)	290 mm (11.4 inches)	97%	low
March Weather	1°C (35°F)	151 mm (5.9 inches)	97%	low
April Weather	3°C (37°F)	181 mm (7.1 inches)	93%	moderate
May Weather	5°C (41°F)	147 mm (5.8 inches)	92%	high
June Weather	8°C (46°F)	127 mm (5.0 inches)	96%	high
July Weather	10°C (50°F)	106 mm (4.2 inches)	102%	high
August Weather	9°C (49°F)	114 mm (4.5 inches)	102%	moderate
September Weather	8°C (46°F)	260 mm (10.2 inches)	99%	moderate
October Weather	5°C (41°F)	256 mm (10.1 inches)	99%	low
November Weather	2°C (36°F)	182 mm (7.2 inches)	97%	low
December Weather	1°C (34°F)	214 mm (8.4 inches)	97%	low