nomadseason

May Weather in Hellissandur, Iceland

Last updated: August 23, 2025

In Hellissandur, Iceland, the average temperature in May hovers around 6°C (42°F). Expect daytime highs of up to 11°C (52°F) and chilly lows reaching 0°C (32°F). This month brings 81 mm (3.2 in) of precipitation over about 13 days, contributing to an average humidity of 87%. Prepare for a mix of cool temperatures and damp conditions!

May Temperature in Hellissandur

In May in Hellissandur, the average temperature is 6°C (42°F). The maximum can reach 11°C (52°F), and the minimum can be as low as 0°C (32°F). Be sure to pack warm clothing if you plan to travel during this time.

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

The chart illustrates May temperature patterns in Hellissandur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hellissandur, May typically has an average temperature of 6°C (42°F), with highs reaching up to 11°C (52°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec353535394246505147433937
Data source: Temperature data for Hellissandur generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Hellissandur

In Hellissandur in May, the precipitation amount is 81 mm (3.2 in) over the course of 13 days.

May Precipitation Trends in Hellissandur

The chart displays monthly precipitation patterns in Hellissandur, 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 Hellissandur, May typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10311394107816370691491029392
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Hellissandur

In Hellissandur in May humidity is 87%. With an average temperature of 6°C (42°F), this humidity feels like a persistent chill that seeps into your bones, making it uncomfortable for traveling and leaving you longing for warmth at every turn.

May Average Humidity in Hellissandur

This chart illustrates the average monthly humidity levels in Hellissandur, 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 Hellissandur is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%86%87%85%88%89%89%88%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hellissandur

In Hellissandur in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Hellissandur.

Maximum UV Index Levels in Hellissandur for May

The chart shows the monthly maximum UV Index (UVI) for Hellissandur 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 Hellissandur typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112355543211
Data source: Hellissandur 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 Hellissandur Compares to Other Months

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

This table compares monthly weather conditions in Hellissandur, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)103 mm (4.1 inches)89%low
February Weather2°C (35°F)113 mm (4.5 inches)89%low
March Weather2°C (35°F)94 mm (3.7 inches)90%low
April Weather4°C (39°F)107 mm (4.2 inches)86%moderate
May Weather6°C (42°F)81 mm (3.2 inches)87%moderate
June Weather8°C (47°F)63 mm (2.5 inches)85%moderate
July Weather10°C (50°F)70 mm (2.8 inches)88%moderate
August Weather10°C (51°F)69 mm (2.7 inches)88%moderate
September Weather9°C (48°F)149 mm (5.9 inches)89%moderate
October Weather6°C (43°F)102 mm (4.0 inches)88%low
November Weather4°C (39°F)93 mm (3.6 inches)87%low
December Weather3°C (37°F)92 mm (3.6 inches)87%low

Compare Hellissandur's Climate with Cities Worldwide