March Weather in Hafnarfjoerdur, Iceland

Last updated: March 17, 2025

In March, Hafnarfjörður, Iceland, experiences a unique transition from winter to spring. With temperatures fluctuating from a chilly -11°C (13°F) to a maximum of 10°C (49°F), the average sits at a brisk 2°C (35°F). This month brings an abundant 105 mm (4.1 in) of precipitation over 18 days, contributing to the region's lush landscape. High humidity levels at 85% create a crisp atmosphere, often enhanced by the dramatic northern lights, making March an enchanting yet chilly time to explore this beautiful coastal town.

March Temperature in Hafnarfjoerdur

In March, Hafnarfjörður experiences a gentle transition into spring, with temperatures beginning to rise from the deep winter chill. The month sees a minimum temperature of around -11°C (13°F), reflecting the tail end of frosty nights, while daytime averages climb to a mild 2°C (35°F). Residents can expect highs of approximately 10°C (49°F), making March noticeably warmer than the preceding months. This gradual warming trend hints at the forthcoming season of renewal, as the icy grip of winter gives way to slightly balmier conditions. While March still feels brisk, the shift signals the onset of a more temperate Icelandic climate, fostering a sense of anticipation for the blossoming days ahead.

March Weather in Hafnarfjoerdur: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Hafnarfjoerdur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333335404449525247423634
Data source: Temperature data for Hafnarfjoerdur 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.

March Precipitation in Hafnarfjoerdur

March in Hafnarfjörður, Iceland, sees a total precipitation of 105 mm (4.1 in) over 18 days, marking a slight dip compared to the significantly wetter months of January and February. This gradual decrease in precipitation reflects a shift toward drier spring conditions, setting the stage for the upcoming months. While March experiences fewer precipitation days than January's 16 and February's 19, it still retains a robust atmosphere as winter gives way to the early signs of spring. As April approaches with 138 mm (5.4 in) predicted, residents can expect a return to higher rainfall, emphasizing the region's dynamic weather patterns throughout the year.

March Precipitation Trends in Hafnarfjoerdur

The chart displays monthly precipitation patterns in Hafnarfjoerdur, with values for each month alongside March's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec118135105138124978190163111112114
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Hafnarfjoerdur

In March, Hafnarfjörður experiences a slight increase in humidity, reaching 85%, which is a reflection of the lingering winter chill. This uptick follows a pattern set by February’s 82% humidity, suggesting a gradual transition to the slightly more humid conditions of spring. As the year progresses, humidity levels tend to fluctuate around the mid-80s, peaking in the summer months of July and August, where it climbs to 86% and 87% respectively. Overall, the trend shows that while March is notably humid, it is consistently less so than the summer months, reinforcing Iceland's unique climate that embraces significant moisture year-round.

March Average Humidity in Hafnarfjoerdur

This chart illustrates the average monthly humidity levels in Hafnarfjoerdur, with March's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how March's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%85%81%83%82%86%87%87%88%85%84%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Hafnarfjoerdur

As winter transitions into spring, March in Hafnarfjoerdur, Iceland, marks a subtle increase in the UV Index, rising to 2 from the consistent 1 observed in the preceding months. This shift, while still categorized as low exposure, indicates a gradual awakening of the sun’s rays, with a burn time remaining at 45 minutes. As daylight hours lengthen and temperatures slowly rise, residents and visitors should start to be more mindful of their sun exposure. The UV Index will continue to climb in the following months, peaking in the heart of summer, but March serves as a gentle reminder of the sun's return. For more details on UV levels throughout the year, visit the Hafnarfjoerdur UV Index.

Maximum UV Index Levels in Hafnarfjoerdur for March

The chart shows the monthly maximum UV Index (UVI) for Hafnarfjoerdur in March, 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: Hafnarfjoerdur March 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.

March Sunshine in Hafnarfjoerdur

March heralds a vibrant transformation in Hafnarfjöður, Iceland, as the city basks in an impressive 197 hours of sunshine. This marks a significant leap from the mere 90 hours seen in February, signaling spring's arrival with renewed energy and light. The sunshine hours continue to climb through April, reaching 215 hours, suggesting a trend of increasingly bright days ahead. As winter gradually fades, the lengths of sunlit hours hint at the vitality and beauty that Iceland’s landscape will soon unveil. With summer just around the corner and May heading towards a remarkable 344 hours of light, Hafnarfjöður prepares to greet a season of endless outdoor adventures and breathtaking natural wonders.

Monthly Sunshine Duration in Hafnarfjoerdur: March Highlighted

The March sunshine duration represents the total number of hours Hafnarfjoerdur experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec41h90h197h215h344h338h316h297h206h147h78h29h
Data source: Hafnarfjoerdur March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hafnarfjoerdur During March

In Hafnarfjörður, Iceland, the likelihood of sunny weather in March is notably low, with only a 16% chance of sun gracing this early spring month. This trend is consistent with the preceding months of January and February, both of which also offer limited sunshine—30% and 16%, respectively. As the region transitions into spring, April sees a slight uptick to 25%, hinting at the gradual increase in daylight and warmth. Interestingly, the chances of sunny days peak in May at 42%, before dipping again during the summer months. It seems that while March is still susceptible to overcast skies, the promise of brighter days is just around the corner, ushering in the more favorable weather of late spring.

Percentage of Sunny Days in March in Hafnarfjoerdur

The chart illustrates the percentage of sunny days in Hafnarfjoerdur throughout the year, with March 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 Hafnarfjoerdur experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%16%16%25%42%15%11%8%14%27%22%18%
Data source: Hafnarfjoerdur March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hafnarfjoerdur in March

As March unfolds in Hafnarfjörður, the days grow noticeably longer, with daylight stretching to 11 hours—a marked increase from the 8 hours in February. This surge signals the transition into spring, where longer days become a cherished feature of daily life. Following this trend, April will bring even more sunlight, reaching 15 hours, paving the way for the vibrant growth of nature after winter's slumber. With each passing month, daylight continues to accumulate, peaking in June at an impressive 20 hours before gradually tapering off as the year progresses. This rhythm of extended daylight not only invigorates outdoor activities but also lifts the spirits of residents, heralding the arrival of warmer seasons.

Average Daylight Hours in Hafnarfjoerdur for March

The chart illustrates the variation in daylight duration in Hafnarfjoerdur throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec5h 32m8h 34m11h 50m15h 9m18h 28m20h 46m19h 26m16h 12m12h 55m9h 39m6h 26m4h 21m
Data source: Hafnarfjoerdur daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in Hafnarfjoerdur

March in Hafnarfjörður, Iceland, brings a gentle shift in the winds, with an average speed of 4.7 m/s (11 mph), still brisk but slightly calmer than the previous months of winter. This gradual decline from January and February's steady 5.0 m/s hints at the arrival of spring, as the weather begins to warm and the landscape shifts from stark winter to the first whispers of life. As we move further into the season, average wind speeds continue to decrease, dipping to 4.3 m/s (10 mph) in April and settling into a more tranquil rhythm by May. The transition from the harsher winter winds to the softer caress of springtime breezes not only sets the tone for Hafnarfjörður's scenery but also captures the essence of Iceland’s ever-changing climate.

Average March Wind Speed in Hafnarfjoerdur

The chart displays monthly wind speed patterns in Hafnarfjoerdur, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.05.04.7 m/s4.33.54.13.63.54.94.54.64.3
Data source: Hafnarfjoerdur March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in Hafnarfjoerdur Compares to Other Months

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

In March, the weather shows a slight warming trend compared to January, with average temperatures hovering around 2°C (35°F) versus January's average of 1°C (33°F). Both months experience minimum temperatures of -11°C (13°F), but March has a maximum of 10°C (49°F) while January peaks at 10°C (51°F). Precipitation is slightly lower in March at 105 mm (4.1 in) over 18 days, compared to January's 118 mm (4.6 in) across 16 days. Humidity levels remain quite similar, with March at 85% and January at 84%. For more details, you can check Hafnarfjoerdur weather in January.

In comparing the weather of March and February, it's evident that March experiences slightly milder temperatures, with a minimum of -11°C (13°F) and an average of 2°C (35°F), compared to February's colder minimum of -18°C (0°F) and an average of 1°C (34°F). While both months show similar maximum temperatures, March generally has less precipitation at 105 mm (4.1 in) over 18 days, whereas February has 135 mm (5.3 in) spread across 19 days. Additionally, March sees a slightly higher humidity level at 85%, compared to February's 82%. For a more detailed look at the weather in February, you can visit Hafnarfjoerdur weather in February.

March and April in Hafnarfjörður present a noticeable shift in weather patterns. In March, temperatures can dip to a minimum of -11°C (13°F), with an average of 2°C (35°F) and a maximum reaching 10°C (49°F). The month sees significant precipitation, totaling 105 mm (4.1 in) over 18 days and maintaining a high humidity level of 85%. In contrast, April brings a slight warming trend, with minimum temperatures around -9°C (16°F) and average temperatures rising to 4°C (40°F). The maximum temperature can reach 13°C (56°F), coupled with increased precipitation at 138 mm (5.4 in) over 17 days, though humidity decreases slightly to 81%. For a closer look at April's weather, you can explore Hafnarfjoerdur weather in April.

March and May present distinctly different weather patterns. In March, temperatures can dip as low as -11°C (13°F), with an average of just 2°C (35°F) and maximums reaching 10°C (49°F). The month typically sees considerable precipitation, amounting to 105 mm (4.1 in) over 18 days, coupled with high humidity levels at 85%. In contrast, May offers a mild progression, with minimum temperatures around -3°C (27°F) and averages of 7°C (44°F), peaking at 15°C (59°F). Precipitation increases slightly to 124 mm (4.9 in), also over 18 days, but with a marginally lower humidity of 83%. For more detailed insights, check Hafnarfjoerdur weather in May.

March and June present contrasting weather patterns. In March, temperatures can plummet to a low of -11°C (13°F), with an average of 2°C (35°F) and a maximum of 10°C (49°F). The month is characterized by considerable precipitation, totaling 105 mm (4.1 in) over 18 days, accompanied by high humidity levels at 85%. In contrast, June experiences much milder temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 19°C (66°F) with an average of 9°C (49°F). While precipitation is slightly lower at 97 mm (3.8 in) and occurs over 17 days, humidity is also moderately reduced at 82%. For more details about weather specifics in June, you can explore Hafnarfjoerdur weather in June.

In March, the weather is markedly colder, with average temperatures hovering around 2°C (35°F) and nighttime lows dipping as low as -11°C (13°F). This month experiences significant precipitation, averaging 105 mm (4.1 in) over 18 days, coupled with high humidity levels of 85%. In contrast, July brings a welcome warmth, with daytime highs reaching a pleasant 23°C (74°F) and an average temperature of 11°C (53°F). Although July sees slightly less precipitation at 81 mm (3.2 in) over 16 days, the humidity remains relatively high at 86%. For a detailed look at what July holds, you can visit Hafnarfjoerdur weather in July.

March and August present contrasting weather patterns. In March, temperatures can plummet to a minimum of -11°C (13°F), with an average of around 2°C (35°F) and a maximum of 10°C (49°F), making it decidedly colder. Precipitation is also significant, totaling 105 mm (4.1 in) over 18 days, accompanied by high humidity levels at 85%.

In contrast, August offers milder conditions, with temperatures ranging from a minimum of 4°C (40°F) to an average of 11°C (52°F) and a maximum of 19°C (66°F). The month sees a slight decrease in precipitation, totaling 90 mm (3.6 in) over 14 days, while humidity remains relatively high at 87%. For more detailed insights, you can check Hafnarfjoerdur weather in August.

March and September showcase stark differences in weather patterns. In March, temperatures range from a chilly -11°C (13°F) at night to a mild average of 2°C (35°F) during the day, with maximum highs reaching 10°C (49°F). The month is marked by considerable precipitation, totaling 105 mm (4.1 in) over 18 days, coupled with high humidity at 85%. In contrast, September enjoys milder temperatures, with a minimum of -2°C (29°F) and an average of 8°C (47°F), peaking at 16°C (60°F). This month sees increased precipitation, averaging 163 mm (6.4 in) over 22 days, and a slightly higher humidity level at 87%. For a detailed look into September weather specifically in Hafnarfjordur, check out Hafnarfjoerdur weather in September.

March and October in Hafnarfjörður present notable contrasts in weather patterns. In March, temperatures range from a chilly -11°C (13°F) to a mild 10°C (49°F), with an average temperature of 2°C (35°F). This month sees around 105 mm (4.1 in) of precipitation over 18 days, coupled with high humidity at 85%. In contrast, October offers slightly warmer conditions, with temperatures varying from -5°C (23°F) to 13°C (55°F) and an average of 5°C (42°F). The precipitation increases slightly to 111 mm (4.4 in) over 17 days, with humidity reaching 88%. For more detailed information, you can visit Hafnarfjoerdur weather in October.

March and November exhibit quite similar weather patterns, with average temperatures hovering around 2°C (35°F to 36°F). March experiences slightly colder temperatures, with a minimum of -11°C (13°F) compared to November's -9°C (16°F). Precipitation levels in both months are relatively high, with March totalling 105 mm (4.1 in) over 18 days and November seeing 112 mm (4.4 in) over 15 days. Both months also share a consistent humidity level of 85%. For a more in-depth look at November conditions, check out Hafnarfjoerdur weather in November.

In March, temperatures range from a minimum of -11°C (13°F) to a maximum of 10°C (49°F), with an average of 2°C (35°F). The month experiences significant precipitation at 105 mm (4.1 in) over 18 days, accompanied by high humidity levels at 85%. In contrast, December features slightly warmer temperatures, with a minimum of -9°C (16°F), an average of 1°C (34°F), and a maximum of 10°C (50°F). Precipitation is slightly higher, totaling 114 mm (4.5 in) across 16 days, while humidity remains comparable at 84%. For a more detailed look at December weather in Hafnarfjöður, you can refer to Hafnarfjoerdur weather in December.

Compare Hafnarfjoerdur's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Hafnarfjoerdur

March in Hafnarfjörður marks a significant transition as winter begins to yield to the promise of spring. Compared to the colder depths of winter, the temperatures start to rise, yet still linger around a chilly average. This month is characterized by increased humidity and a notable amount of precipitation, with wet conditions frequenting nearly half the days. While March may not offer the mildness of later spring months, the gradual warming trend and lengthening days hint at the upcoming seasonal changes. For more insights on Hafnarfjörður's climate, visit Hafnarfjoerdur Climate.