July Weather in Selfoss, Iceland

Last updated: March 17, 2025

July in Selfoss, Iceland presents a dynamic weather experience characterized by a maximum temperature reaching 24°C (76°F) and an average temperature of 11°C (53°F). As temperatures dip, the minimum recorded is 4°C (39°F). Visitors can expect a relatively moist climate, with precipitation amounts totaling 86 mm (3.4 in) over 15 days, contributing to the region's lush landscapes. The humidity remains notably high at 86%, making for a unique and refreshing summer atmosphere that highlights the beauty of Icelandic nature.

July Temperature in Selfoss

In July, Selfoss, Iceland, welcomes the warmest temperatures of the year, showcasing a delightful shift from the cold grip of winter. The average temperature reaches a comfortable 11°C (53°F), with highs peaking at a pleasant 24°C (76°F), offering a perfect climate for exploring the stunning landscapes. As daylight shines more brightly and the nights remain mild, tourists can bask in the beauty of Iceland's summer. Interestingly, July's minimum temperature of 4°C (39°F) marks a significant rise from previous months, illustrating a steady progression towards warmth as the year unfolds. This month truly embodies the essence of summer in Iceland, inviting adventure and enjoyment.

July Weather in Selfoss: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Selfoss, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec323234394449535247413533
Data source: Temperature data for Selfoss 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.

July Precipitation in Selfoss

In Selfoss, Iceland, July brings a transition into the summer months, characterized by a moderate precipitation of 86 mm (3.4 in), slightly lower than the rainfall observed in June. The 15 rainy days that month indicate that while summer is in full swing, intermittent showers are still prevalent. Compared to the heavier rainfall in the spring and the looming increase in September (which sees a spike to 194 mm), July’s weather reflects a brief reprieve. This highlights a noticeable trend in the region where precipitation tends to be more moderate during the summer, allowing for fleeting moments of sunshine amidst the frequent showers.

July Precipitation Trends in Selfoss

The chart displays monthly precipitation patterns in Selfoss, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec142158121140128898696194113128137
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Selfoss

In Selfoss, Iceland, July marks a peak in humidity, reaching 86%, which is part of a broader trend of increased moisture in the summer months. The humidity gradually rises from 82% in June and continues to climb, peaking in August at 87%. Following this summer spike, the humidity begins to taper off into the fall, settling down again to 84% by December. This fluctuating pattern emphasizes Iceland's unique climate, where the air feels particularly rich and heavy during the height of summer, providing a stark contrast to the drier conditions experienced earlier in the year, such as April's 81%.

July Average Humidity in Selfoss

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

July UV Index in Selfoss

In July, Selfoss, Iceland experiences a heightened UV Index of 6, indicating a high exposure category and a burn time of just 25 minutes. This peak in UV intensity mirrors June's conditions, showcasing a consistent trend during the summer months when sun exposure increases. As the year progresses, notably from April to July, the UV Index escalates from a moderate level of 3 to this high level, signifying that visitors and residents alike should take precautions during outdoor activities. As August approaches, the UV Index slightly dips to 4, transitioning back to more moderate exposure levels. For a detailed understanding of UV exposure throughout the year, check out the comprehensive Selfoss UV Index.

Maximum UV Index Levels in Selfoss for July

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

July Sunshine in Selfoss

In July, Selfoss, Iceland basks in 310 hours of sunshine, making it one of the brightest months of the year. This delightful surge in daylight comes on the heels of a robust June, which captures 329 hours, showcasing a gradual ascent in sunlight from the winter months. As summer takes hold, the trend reveals a significant leap from the meager 39 hours in January to an impressive accumulation of light by mid-summer. Following July, the sunshine begins to taper off, with August still offering a generous 298 hours, while September sees a notable decline. This seasonal ebb and flow of sunlight illuminates the beauty of Icelandic summers, inviting both locals and visitors to savor the warmth and vibrancy before the autumn chill sets in.

Monthly Sunshine Duration in Selfoss: July Highlighted

The July sunshine duration represents the total number of hours Selfoss experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec39h88h193h212h334h329h310h298h194h142h74h29h
Data source: Selfoss July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Selfoss During July

In Selfoss, Iceland, the likelihood of sunny weather in July is relatively low, with only 15% chance, a statistic that aligns with the trends seen from the preceding months. Despite being in the heart of summer, July's sun probability mirrors that of June, showcasing a pattern where the sunny spells are fleeting. The peak likely occurs in May at 42%, while June and August experience a notable decline, dropping to 15% and 11%, respectively. This trend underscores Iceland's unique climate, where even summer months can retain a certain unpredictability, leaving residents and visitors alike to enjoy every rare sunny moment while they can.

Percentage of Sunny Days in July in Selfoss

The chart illustrates the percentage of sunny days in Selfoss throughout the year, with July 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 Selfoss experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec33%15%17%26%42%15%15%11%13%25%22%18%
Data source: Selfoss July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Selfoss in July

In July, Selfoss, Iceland experiences a delightful 19 hours of daylight, providing a perfect backdrop for summer exploration. This abundant light is a slight decrease from June's peak of 20 hours, yet it still offers long, sunlit days for outdoor adventures. The gradual transition to shorter days can be felt as August approaches, with daylight dipping to 16 hours. This pattern highlights the unique characteristics of Iceland’s summer, where daylight peaks in late spring and early summer, allowing residents and visitors alike to bask in the natural beauty of this enchanting landscape before the autumn sets in.

Average Daylight Hours in Selfoss for July

The chart illustrates the variation in daylight duration in Selfoss throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec5h 35m8h 35m11h 50m15h 8m18h 25m20h 40m19h 22m16h 11m12h 55m9h 40m6h 29m4h 26m
Data source: Selfoss daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Selfoss

As July arrives in Selfoss, Iceland, a gentle breeze sweeps through the region with an average wind speed of 3.0 m/s (7 mph). This marks a slight decrease from the previous month, reflecting a trend of diminishing winds as summer takes hold. In the warmer months, particularly from May to August, the winds generally soften, hitting their lowest point in July before gradually picking up in September. This seasonal shift provides a perfect backdrop for enjoying the serene beauty of Icelandic landscapes, making July an ideal time for outdoor exploration, despite the calmer air. As the summer gives way to autumn, selfoss prepares for stronger gusts, but for now, a tranquil summer day awaits you.

Average July Wind Speed in Selfoss

The chart displays monthly wind speed patterns in Selfoss, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.93.93.73.42.93.33.0 m/s2.74.13.83.73.5
Data source: Selfoss July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Selfoss Compares to Other Months

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

July and January in Selfoss present a stark contrast in weather conditions. July typically boasts milder temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 24°C (76°F), with an average of 11°C (53°F). The month sees around 86 mm (3.4 in) of precipitation over approximately 15 days, accompanied by a high humidity level of 86%. In contrast, January experiences much colder temperatures, with a minimum of -14°C (7°F) and a maximum of 10°C (50°F), averaging around 0°C (32°F). Precipitation is also higher in January at 142 mm (5.6 in), spread across the same number of rainy days, but with slightly lower humidity at 84%. This seasonal shift highlights the dramatic variation in weather between the summer and winter months. For more details, you can check Selfoss weather in January.

July and February present strikingly different weather conditions. In July, temperatures range from a minimum of 4°C (39°F) to a pleasant maximum of 24°C (76°F), with an average temperature of 11°C (53°F). The month experiences considerable rainfall, totaling 86 mm (3.4 in) over about 15 days, and the humidity is notably high at 86%. In contrast, February showcases a much colder climate, with temperatures dipping as low as -16°C (3°F) and peaking at 8°C (47°F), averaging around 0°C (32°F). Precipitation is more frequent in February, totaling 158 mm (6.2 in) across 19 days, and the humidity level is slightly lower at 82%. For more detailed insights, check out Selfoss weather in February.

In comparing the weather of July and March, it is evident that July is significantly warmer, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 24°C (76°F). This stands in stark contrast to March, where temperatures are much cooler, ranging from a minimum of -15°C (5°F) to a maximum of 9°C (49°F). Additionally, July experiences less precipitation (86 mm or 3.4 in) over fewer days (15 days) compared to March, which sees a higher total of 121 mm (4.8 in) across 18 days. Despite the slight drop in humidity from July's 86% to March's 85%, the overall climate in July is considerably more pleasant. For more insights on March weather specifically, you can visit Selfoss weather in March.

In comparing the weather of July and April, July experiences significantly milder temperatures, with an average of 11°C (53°F) and a maximum of 24°C (76°F), in stark contrast to April's cooler temperatures, which range from a minimum of -12°C (11°F) to a maximum of 13°C (56°F). While both months see a considerable amount of precipitation, April has a higher total of 140 mm (5.5 in) over 18 days compared to July’s 86 mm (3.4 in) across 15 days. The humidity is higher in July at 86%, compared to April's 81%. For a more detailed look at April weather in Selfoss, you can check Selfoss weather in April.

When comparing the weather in July and May, it's clear that July tends to be warmer and more humid. In July, temperatures range from a minimum of 4°C (39°F) to a maximum of 24°C (76°F), with an average of 11°C (53°F) and a relatively low precipitation of 86 mm (3.4 in) over 15 rainy days. In contrast, May experiences cooler temperatures, with highs reaching only 16°C (61°F) and lows dipping to -3°C (27°F), resulting in an average of 7°C (44°F). May also sees more substantial rainfall, totaling 128 mm (5.0 in) over 18 days. Additionally, while July has a higher humidity level at 86%, May remains fairly humid at 83%. For a closer look at May's weather, you can check Selfoss weather in May.

In comparing the weather between June and July, we can observe that July tends to be warmer, with average temperatures rising from 9°C (49°F) in June to 11°C (53°F) in July. The maximum temperature also sees a notable increase, reaching up to 24°C (76°F) in July compared to June's maximum of 19°C (67°F). Interestingly, while both months experience a similar amount of precipitation—with July at 86 mm (3.4 in) and June at 89 mm (3.5 in)—they have the same number of days of rain, occurring on 15 days in each month. Additionally, humidity levels are slightly higher in July at 86%, compared to 82% in June, contributing to a more muggy atmosphere. For more detailed insights into June's weather, you can visit Selfoss weather in June.

In comparing the weather between July and August, July typically experiences slightly warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 24°C (76°F), while August sees a marginally higher minimum temperature of 5°C (41°F) but a cooler maximum of 19°C (66°F). Precipitation increases in August, accumulating 96 mm (3.8 in) over 13 days compared to July's 86 mm (3.4 in) over 15 days. Additionally, humidity levels remain high, with July at 86% and August slightly higher at 87%. For more detailed insights into August weather, you can refer to Selfoss weather in August.

July and September present contrasting weather patterns. In July, temperatures range from a minimum of 4°C (39°F) to a pleasant maximum of 24°C (76°F), with an average of 11°C (53°F). Although July experiences some rainfall, with 86 mm (3.4 in) across 15 days, humidity levels remain high at 86%. In contrast, September sees a cooler climate, with temperatures dropping to a minimum of -2°C (29°F) and peaking at 16°C (61°F), averaging around 8°C (47°F). Additionally, September is wetter, featuring 194 mm (7.7 in) of precipitation over 21 days, and slightly higher humidity at 87%. For more detailed information, you can check Selfoss weather in September.

In July, the weather is generally warmer with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 24°C (76°F), and an average around 11°C (53°F). The month sees about 86 mm (3.4 in) of precipitation over 15 days and maintains a high humidity level of 86%. In contrast, October brings a notable drop in temperature, with averages around 5°C (42°F), and daily highs peaking at just 13°C (55°F). Precipitation increases to 113 mm (4.4 in) over 16 days, with humidity slightly higher at 88%. For those looking for more detailed information, you can check Selfoss weather in October.

July and November present striking contrasts in weather. In July, temperatures typically range from a minimum of 4°C (39°F) to a pleasant maximum of 24°C (76°F), with an average of 11°C (53°F). The month enjoys relatively lower humidity at 86% and experiences about 86 mm (3.4 in) of precipitation over 15 days. In contrast, November sees much cooler temperatures, with a minimum of -8°C (17°F) and an average of just 2°C (35°F), peaking at 11°C (52°F). This month also tends to be wetter, with total precipitation rising to 128 mm (5.0 in), while maintaining a similar level of humidity at 85%. The weather dynamics are notably different, making July a far warmer month compared to the chilly and wetter conditions of November. For more details on November weather, you can visit Selfoss weather in November.

In July, the weather in Selfoss is relatively mild, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 24°C (76°F). This month experiences an average temperature of 11°C (53°F) and notable humidity at 86%, accompanied by 86 mm (3.4 in) of precipitation spread over 15 days.

Conversely, December brings much colder conditions, with temperatures dropping significantly to a minimum of -11°C (12°F) and peaking at just 9°C (49°F). The average temperature for this month is around 0°C (33°F), and December also sees higher precipitation at 137 mm (5.4 in) over 16 days, although the humidity remains slightly lower at 84%. For a more detailed look at December weather, you can visit Selfoss weather in December.

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Conclusion: What to Expect From July Weather in Selfoss

July in Selfoss offers a delightful break from the chill of winter months, showcasing warmer temperatures and a vibrant atmosphere perfect for exploring the stunning landscapes. With an average of 11°C, this month stands out with its peak temperatures reaching up to 24°C, inviting outdoor enthusiasts to bask in the beauty of summer. However, it's also characterized by a fair share of rain, with 15 days of precipitation, contributing to the lush greenery that Iceland is known for. The high humidity levels at 86% can make the air feel heavier, yet it adds to the overall richness of the environment. For those seeking to understand more about the unique climate dynamics throughout the year, visit Selfoss Climate for a comprehensive overview.