May Weather in Reykjanesbaer, Iceland

Last updated: March 17, 2025

May weather in Reykjanesbær, Iceland showcases a cool and moderately wet climate, with temperatures peaking at 12°C (54°F) and averaging around 7°C (44°F). The month experiences a minimum temperature dipping to 0°C (33°F), making it a time for layering up. Precipitation is notable, with an average of 115 mm (4.5 in) spread across 16 days, resulting in a humid atmosphere with 85% humidity. Embrace the unique charm of this coastal town as nature awakens, despite the frequent spring showers.

May Temperature in Reykjanesbaer

In May, Reykjanesbaer, Iceland begins to shake off the lingering chill of winter, ushering in a refreshing transition characterized by milder temperatures. With minimums around 0°C (33°F) and average highs reaching up to 12°C (54°F), May sees a noticeable increase from the previous months. This rise represents a significant shift as temperatures gradually climb from the more frigid lows of early winter to the more temperate conditions of late spring. Visitors can expect pleasant days and crisp evenings, making it an ideal time to explore the rugged beauty of the region, while enjoying the increasing warmth and longer daylight hours that herald the approach of summer.

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

The chart illustrates May temperature patterns in Reykjanesbaer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353636404448525248433836
Data source: Temperature data for Reykjanesbaer 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.

May Precipitation in Reykjanesbaer

May in Reykjanesbaer, Iceland, continues the trend of significant precipitation characteristic of the early spring months, with 115 mm (4.5 in) falling over 16 days. This volume is slightly lower than the wetter months preceding it, such as April's 133 mm (5.2 in), indicating a gradual easing of rainfall as the region moves towards summer. Despite the decrease, May's precipitation still ensures the landscape remains lush and vibrant. As temperatures rise, the number of rainy days in May also drops slightly from earlier months, hinting at a transition toward drier conditions ahead. This blend of moisture and emerging warmth sets the stage for the distinctive Icelandic summer.

May Precipitation Trends in Reykjanesbaer

The chart displays monthly precipitation patterns in Reykjanesbaer, 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.
JanFebMarAprMayJunJulAugSepOctNovDec117126110133115877889171119119119
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Reykjanesbaer

In May, humidity levels in Reykjanesbaer, Iceland, rise to a notable 85%, marking a trend of increasing humidity as spring transitions into summer. This elevation in moisture is consistent with the overall pattern observed in the months leading up to summer, where humidity gradually creeps up from January's 80% to May's peak. Following May, humidity remains high, hovering at 85% in June and rising to 87% by July, indicating that the warm months bring a lush and often wet atmosphere to the region. This gradual climb not only enriches the natural scenery but also sets the tone for the humid, vibrant summer days that define Iceland's unique coastal climate.

May Average Humidity in Reykjanesbaer

This chart illustrates the average monthly humidity levels in Reykjanesbaer, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%82%80%85%85%87%88%85%85%81%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Reykjanesbaer

As May arrives in Reykjanesbaer, Iceland, the UV Index climbs to a moderate level of 5, signaling a notable shift in sunlight exposure. After a winter of low UV ratings—where safe exposure times reach a generous 45 minutes—spring ushers in a brisk increase. With the UV Index now at 5, residents and visitors alike should be mindful of their skin, as the recommended burn time drops to 30 minutes. This trend marks a transition toward higher UV levels, which continue to escalate into the summer months, reaching a high of 6 in June and July. Staying informed about UV Index fluctuations can help ensure safe outdoor enjoyment throughout the year. For detailed updates, check the Reykjanesbaer UV Index.

Maximum UV Index Levels in Reykjanesbaer for May

The chart shows the monthly maximum UV Index (UVI) for Reykjanesbaer 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.
JanFebMarAprMayJunJulAugSepOctNovDec112356643211
Data source: Reykjanesbaer 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.

May Sunshine in Reykjanesbaer

As spring unfurls its petals in Reykjanesbaer, Iceland, May shines as the month that embraces longer days and vibrant sunshine, boasting an impressive 344 hours of daylight. This is a striking increase from the 214 hours seen in April, marking a transition into the vibrant hues of summer. The trend of increasing daylight continues into June, with 338 hours lighting up the landscape, but it gradually tapers off as the months progress, with July and August observing 312 and 294 hours, respectively. The contrast is fascinating, as the long, sunlit days of late spring and early summer seem to give way to shorter, cozy autumnal evenings by September, which receives 207 hours. Witnessing this shift in daylight hours not only enhances the natural beauty of Reykjanesbaer but also influences the local lifestyle, showcasing the vibrant energy that May brings to this captivating Icelandic town.

Monthly Sunshine Duration in Reykjanesbaer: May Highlighted

The May sunshine duration represents the total number of hours Reykjanesbaer experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec42h90h195h214h344h338h312h294h207h146h79h28h
Data source: Reykjanesbaer May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Reykjanesbaer During May

As May rolls in, Reykjanesbaer, Iceland, experiences a significant uplift in sunny weather, boasting a 49% chance of sunshine—the highest probability of the year. This marks a noticeable shift from the dreary winter months, where January to March see mere glimpses of sunlight, with chances as low as 15% in March. Following April's modest 26%, May heralds the onset of brighter and more cheerful days, presenting an ideal time for outdoor adventures and explorations. However, as summer approaches, the likelihood of sun dips again in June, July, and August, underscoring May as a pivotal month for enjoying Iceland's stunning landscapes under clear skies.

Percentage of Sunny Days in May in Reykjanesbaer

The chart illustrates the percentage of sunny days in Reykjanesbaer throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Reykjanesbaer experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%18%15%26%49%18%13%12%15%26%22%20%
Data source: Reykjanesbaer May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Reykjanesbaer in May

In Reykjanesbaer, Iceland, the transition into spring heralds a significant increase in daylight duration, with May showcasing a remarkable 18 hours of daylight. This month marks a peak in the gradual gain of light that begins in January, where just 5 hours are offered, and accelerates through February and March. By April, as the warmth of spring begins to assert itself, daylight expands to 15 hours, setting the stage for the long, bright days of summer. Following May, the daylight begins to taper slightly, peaking in June at 20 hours, only to modestly decline into the autumn months. This rhythm of increasing and then decreasing daylight reflects Iceland’s unique geographical position, inviting residents and visitors alike to cherish the vibrant light of late spring and early summer.

Average Daylight Hours in Reykjanesbaer for May

The chart illustrates the variation in daylight duration in Reykjanesbaer throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec5h 34m8h 35m11h 50m15h 8m18h 26m20h 42m19h 24m16h 11m12h 55m9h 40m6h 28m4h 24m
Data source: Reykjanesbaer daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Reykjanesbaer

In Reykjanesbær, Iceland, the wind exhibits a noticeable trend as spring transitions into summer. May stands out with an average wind speed of 5.0 m/s (11 mph), marking a significant drop compared to the preceding months of January through April, which consistently hovered above 6.2 m/s. This gentle breeze welcomes the warmer days, as it is the lowest wind speed recorded for the year thus far. Following May, wind speeds do see a slight increase in June, returning to 5.8 m/s (13 mph). Overall, the May winds bring a refreshing calmness, allowing residents and visitors alike to relish the scenic beauty of Iceland without the typical gusty conditions of earlier months.

Average May Wind Speed in Reykjanesbaer

The chart displays monthly wind speed patterns in Reykjanesbaer, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.87.27.26.25.0 m/s5.85.14.87.26.87.16.5
Data source: Reykjanesbaer May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Reykjanesbaer Compares to Other Months

The weather in Reykjanesbaer changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Reykjanesbaer and find detailed weather information for every month.

May and January present quite different weather patterns. In May, temperatures range from a chilly 0°C (33°F) at night to a mild 12°C (54°F) during the day, with an average of 7°C (44°F). The month is relatively damp with 115 mm (4.5 in) of precipitation over 16 days, accompanied by a high humidity level of 85%. In contrast, January is colder, with temperatures dipping as low as -6°C (22°F) and peaking at 9°C (49°F), averaging 2°C (36°F). Although January sees slightly more precipitation at 117 mm (4.6 in) over 17 days, the humidity is lower at 80%. For more details on January weather in this region, check out Reykjanesbaer weather in January.

In comparing the weather between May and February, it’s clear that May offers a milder climate, with average temperatures ranging from 0°C (33°F) to a high of 12°C (54°F), contrasted with February's colder temperatures, where the averages range from -9°C (16°F) to a maximum of 8°C (47°F). While February experiences slightly higher precipitation at 126 mm (5.0 in) over 19 days, May's precipitation is considerable as well, totaling 115 mm (4.5 in) across 16 days. Additionally, the humidity is notably higher in May at 85%, compared to February's 77%, contributing to a different overall feel in the air. For more details on February's weather, you can visit Reykjanesbaer weather in February.

May generally offers milder weather compared to March, with average temperatures climbing to 7°C (44°F) compared to March's cooler average of 2°C (37°F). While both months experience significant precipitation, May sees slightly more rainfall at 115 mm (4.5 in) over 16 days, as opposed to March's 110 mm (4.3 in) over 18 days. Humidity levels are relatively high in both months, with May averaging 85% and March at 82%. Overall, May's temperatures are more comfortable, making it a more appealing time for outdoor activities. For a closer look at what to expect during this time, check out Reykjanesbaer weather in March.

In comparing the weather of April and May, May tends to be slightly warmer, with average temperatures reaching 7°C (44°F) compared to April's 5°C (41°F). The minimum temperatures in May are also higher, with a minimum of 0°C (33°F) versus April’s chilly -7°C (20°F). However, April experiences slightly more precipitation, totaling 133 mm (5.2 in) over 18 days, compared to May's 115 mm (4.5 in) over 16 days. Humidity levels are relatively similar, with May at 85% and April at 80%. For more details on April's weather, you can check Reykjanesbaer weather in April.

The weather in May is generally cooler and wetter compared to June. In May, temperatures range from a chilly minimum of 0°C (33°F) to a maximum of 12°C (54°F), with an average temperature of 7°C (44°F) and a notable precipitation level of 115 mm over 16 days. In contrast, June experiences slightly milder temperatures, with a minimum of 4°C (39°F) and a maximum of 15°C (60°F), resulting in an average of 9°C (48°F). Precipitation decreases in June to 87 mm spread over 15 days, while humidity remains consistently high at 85% for both months. For more details on June's weather conditions, you can visit Reykjanesbaer weather in June.

In May, temperatures typically range from a cool 0°C (33°F) at night to a mild 12°C (54°F) during the day, with an average temperature of 7°C (44°F). The month experiences significant rainfall, totaling 115 mm (4.5 in) over 16 days, and humidity levels hover around 85%. In contrast, July offers warmer conditions, with nighttime temperatures starting at 6°C (43°F) and reaching a maximum of 19°C (66°F), averaging at 11°C (52°F). Although July sees less precipitation at 78 mm (3.1 in) over 18 days, humidity remains slightly higher at 87%. For a detailed look at the weather in July, check out Reykjanesbaer weather in July.

In May, temperatures tend to be cooler with a minimum of 0°C (33°F) and an average of 7°C (44°F), reaching a maximum of 12°C (54°F). The month also experiences significant precipitation, totaling 115 mm (4.5 in) over approximately 16 days, accompanied by high humidity at 85%. In contrast, August offers milder temperatures, with a minimum of 7°C (45°F), an average of 11°C (52°F), and a maximum of 16°C (62°F). Precipitation is less frequent, totaling 89 mm (3.5 in) across about 13 days, and humidity rises slightly to 88%. For more details about the weather in August, you can check Reykjanesbaer weather in August.

May and September in Reykjanesbaer present distinct weather patterns, though both months share high humidity levels of 85%. In May, the temperatures range from a minimum of 0°C (33°F) to a maximum of 12°C (54°F), with an average temperature of 7°C (44°F). However, precipitation is significant during this month, falling around 115 mm (4.5 in) over 16 days. In contrast, September sees slightly warmer temperatures with a minimum of 1°C (34°F), an average of 9°C (48°F), and a maximum of 13°C (56°F). Rainfall increases to 171 mm (6.7 in) across 21 days, making September the wetter month. For more detailed weather information, check out Reykjanesbaer weather in September.

In comparing the weather between May and October, both months exhibit similar temperature ranges, with May averaging 7°C (44°F) and October slightly lower at 6°C (44°F). However, October often dips to a minimum of -1°C (30°F), compared to May's minimum of 0°C (33°F). Precipitation is also notable in both months; May sees 115 mm (4.5 in) over 16 days, while October has a bit more rain with 119 mm (4.7 in) spread across 18 days. Humidity remains consistent at 85% for both months, contributing to a damp atmosphere. For more detailed insights into the weather in October, you can visit Reykjanesbaer weather in October.

May and November in Reykjanesbaer offer distinct weather patterns that reflect the transition from spring to late autumn. In May, temperatures range from a chilly 0°C (33°F) at night to a mild 12°C (54°F) during the day, with an average of 7°C (44°F). The month sees approximately 115 mm (4.5 in) of precipitation over 16 days, along with high humidity levels around 85%. Conversely, November experiences slightly colder conditions, with temperatures dipping from a minimum of -4°C (25°F) to a maximum of 10°C (51°F) and an average of 4°C (39°F). This month also has higher precipitation totals of 119 mm (4.7 in) across 18 days, but with a slightly lower humidity of 81%. For more detailed information, you can visit Reykjanesbaer weather in November.

In May, the weather is generally milder, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 12°C (54°F) and an average of 7°C (44°F). However, it is also quite rainy, experiencing about 115 mm (4.5 in) of precipitation over 16 days, accompanied by high humidity levels at 85%. In contrast, December brings chillier conditions, with temperatures dipping as low as -6°C (21°F) and reaching up to 9°C (49°F), averaging around 2°C (37°F). Although December receives slightly more precipitation at 119 mm (4.7 in) over 18 days, the humidity is slightly lower at 80%. For a more detailed look at December conditions in the area, visit Reykjanesbaer weather in December.

Compare Reykjanesbaer's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Reykjanesbaer

As May unfolds in Reykjanesbaer, the weather begins to transition, offering a gentler embrace than the chill of earlier months. With temperatures averaging 7°C (44°F) and peaking at 12°C (54°F), the month showcases a welcome shift towards milder conditions. However, don’t forget your umbrella—frequent rainfall contributes to a total of 115 mm (4.5 in) over about 16 days, while humidity remains high at 85%. This mix of warmth and moisture signals the approach of summer, making May a unique blend of cool breezes and refreshing rain. For those curious about what to expect in the months ahead, explore the detailed insights at Reykjanesbaer Climate.