Last updated: March 17, 2025
In October, Reykjavik, Iceland experiences a vibrant mix of autumnal weather, where temperatures generally hover around an average of 5°C (42°F). The month showcases a maximum warmth of 13°C (56°F), while chilly nights can plunge as low as -4°C (25°F). Travelers can expect substantial rainfall, with 96 mm (3.8 in) of precipitation spread across approximately 16 days, creating a damp yet picturesque atmosphere. The high humidity at 93% adds to the unique charm of Reykjavik in this season, making it an enticing destination for those who appreciate the beauty of the autumn landscape and the invigorating Icelandic air.
As October unfolds in Reykjavik, temperatures transition into the heart of autumn, marked by a distinct chill in the air. The average temperature settles at a brisk 5°C (42°F), complemented by minimums dipping to -4°C (25°F) and maximums reaching a moderate 13°C (56°F). This progressive cooling trend from the warmer summer months, where highs were comfortably in the low twenties, signals the onset of winter's approach. Despite the drop in temperature, October's climate is characterized by a dynamic interplay of crisp air and occasional rain, making it an invigorating time to explore the capital's stunning landscapes. As daylight shortens, the chance of witnessing the enchanting Northern Lights increases, adding an extra layer of magic to Reykjavik's October ambiance.
As October arrives in Reykjavik, Iceland, the city experiences a moderate precipitation level of 96 mm (3.8 in), accompanied by 16 days of rain. This marks a slight dip from the wetter month of September, which sees a significant 164 mm (6.5 in) over 20 days. The trend for October reflects the transition into late autumn, where precipitation levels decrease from earlier in the fall. Comparatively, November picks up again with 105 mm (4.1 in), hinting at the looming winter months. Overall, October’s weather serves as a reminder of Iceland's unique climate rhythm, balancing between rainfall and crisp, cool days, as the landscape prepares for the approaching winter chill.
As autumn settles in Reykjavik, October sees a slight increase in humidity, averaging 93%, which is a subtle rise from the preceding month's 92%. This trend reflects the gradual transition from the drier summer months, which boast humidity levels around 81% in June, to the more moisture-laden winter ahead, where figures peak at 96% in January. Interestingly, while January through April remain consistently high, with humidity rarely dipping below 87%, May and June provide a brief reprieve, reaching their annual minimums. However, as October arrives, the embrace of ever-present moisture begins to wrap around the city once more, heralding the arrival of winter and its characteristic charm.
As October rolls into Reykjavik, the UV Index dips to 2, indicating a low exposure category with a burn time of 45 minutes—similar to the earlier months of the year. This trend marks a noticeable decline from the summer's high levels, where June and July reached a peak Index of 6. By contrast, the earlier months reflect a gradual increase in UV exposure, starting from 1 in January and February, climbing to a moderate 3 by April, before peaking at 5 in May. As daylight wanes and the air cools, outdoor enthusiasts can enjoy the crisp autumn air with less concern for UV damage. For more details on how UV levels change throughout the year, visit Reykjavik UV Index.
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In October, Reykjavik enjoys a smooth transition toward winter, with approximately 134 hours of sunshine illuminating the city. While this marks a decline from the 186 hours experienced in March, it is notably higher than the meager 69 hours that greet the residents in November. This month showcases a delicate balance as days grow shorter and the golden hues of autumn paint the landscape. After the vibrant summer months that bask in over 300 hours of daylight, October’s sunshine becomes a cherished reminder of nature's beauty before the long, dark winter sets in. Travelers can delight in the crisp air and soft light that invigorate the city, making it an ideal time for outdoor explorations and enjoying local cuisine.
As October rolls into Reykjavik, the likelihood of sunny weather starts to shift slightly from the summer slump, boasting a 24% chance of sunlight. While this remains lower than the peak of 46% in May, it’s a noticeable uptick from the dreary months of July and August, which see just a 10% chance. The transition from summer to autumn brings about a gradual revival in sunlit days after a dismal September at 13%. Thus, while October may not guarantee radiant skies, the potential for sunny spells does offer a glimmer of hope amidst the encroaching winter, making it a noteworthy month in the Icelandic calendar.
As autumn deepens in Reykjavik, Iceland, October ushers in a notable transition, with daylight lasting around 9 hours. This marks a gradual decline from the vibrant 12 hours in September, as the days shorten in preparation for the winter season. Following the long, sunlit days of summer—where daylight stretched to 20 hours in June—October’s sunlight becomes a reminder of the swift changes that occur in this northern landscape. With each passing month, daylight diminishes, echoing a seasonal rhythm that brings both a sense of snugness and anticipation for the forthcoming winter months. This trend of decreasing daylight is a striking feature of life in Reykjavik, highlighting the unique interplay between light and dark that characterizes the Icelandic experience.
In October, Reykjavik experiences a noticeable shift in wind patterns, with an average wind speed of 4.3 m/s (10 mph), holding steady with the velocities seen in November. This month marks a transition, as the summer's milder breezes give way to the brisk winds that signal the approach of winter. Following a peak in September at 4.8 m/s (11 mph), October's winds become more moderate, yet still strong enough to remind locals and visitors alike of Iceland's captivating and unpredictable weather. This month serves as a bridge, blending the remnants of autumn with the impending arrival of winter, inviting everyone to embrace the invigorating gusts that dance through the city's streets.
The weather in Reykjavik changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Reykjavik and find detailed weather information for every month.
When comparing the weather in October and January, one can observe significant differences in temperature and precipitation. In October, the average temperature hovers around 5°C (42°F), with minimums dropping to -4°C (25°F) and maximums reaching up to 13°C (56°F). The month also experiences around 96 mm (3.8 in) of precipitation over 16 days and humidity levels at 93%.
In contrast, January is colder, with an average temperature of 0°C (32°F) and minimums plummeting to -13°C (8°F) while maximums are slightly warmer at 10°C (50°F). January sees a higher total precipitation of 113 mm (4.5 in), also spread over 16 days, and slightly increased humidity at 96%. For more detailed information, you can check Reykjavik weather in January.
October and February present contrasting weather conditions. In October, temperatures range from a chilly -4°C (25°F) to a milder 13°C (56°F), with an average of 5°C (42°F). The month sees about 96 mm (3.8 in) of precipitation spread over 16 days, accompanied by high humidity at 93%. In comparison, February's temperatures drop significantly, with minimums reaching -18°C (-1°F) and a maximum of 8°C (47°F), averaging around 0°C (33°F). February experiences even more precipitation, totaling 125 mm (4.9 in) over 18 days, while maintaining high humidity at 95%. For more detailed insights, check out Reykjavik weather in February.
The weather in October and March shows notable differences, particularly in temperature and overall conditions. In October, temperatures range from a minimum of -4°C (25°F) to a maximum of 13°C (56°F), with an average of 5°C (42°F). The month experiences approximately 96 mm (3.8 in) of precipitation over 16 days, all while maintaining a high humidity of 93%. In contrast, March is colder, with temperatures dipping as low as -13°C (9°F) and not exceeding 9°C (49°F), averaging around 1°C (34°F). During this month, precipitation slightly increases to 103 mm (4.1 in) over 18 days, with humidity remaining consistently high at 94%. For a more detailed look at the weather specifics in March, you can check Reykjavik weather in March.
When comparing October and April weather, both months exhibit similar temperature ranges, but April tends to have slightly cooler mornings with a minimum of -8°C (17°F) compared to October's -4°C (25°F). The average temperature in October is marginally higher at 5°C (42°F) versus April's 4°C (40°F), while the maximum temperatures are fairly comparable, peaking at 13°C (56°F) in October and 14°C (57°F) in April. Both months experience substantial precipitation, with April receiving 121 mm (4.8 in) over 18 days, slightly exceeding October's 96 mm (3.8 in) across 16 days. Humidity levels are also high in both months, with October at 93% and April at 87%. For more detailed insights, check out Reykjavik weather in April.
In October, the weather is generally cool with average temperatures around 5°C (42°F), ranging from a minimum of -4°C (25°F) to a maximum of 13°C (56°F). The month sees quite a bit of precipitation, totaling 96 mm (3.8 in) across 16 days and maintaining a high humidity level of 93%.
In contrast, May experiences slightly milder temperatures with an average of 7°C (44°F), where the thermometer dips to a minimum of -3°C (27°F) and peaks at 15°C (60°F). Although it has more total precipitation at 113 mm (4.4 in) over 18 days, the humidity is relatively lower at 85%, making May feel less damp than October. For more details on weather conditions during this month, you can check Reykjavik weather in May.
When comparing the weather in October and June, October presents a much chillier climate, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (56°F). In contrast, June sees milder temperatures, with averages between 2°C (36°F) and 18°C (65°F). Both months experience similar levels of precipitation, around 92-96 mm (3.6-3.8 in), but October is characterized by a notably higher humidity of 93%, compared to June's 81%. This combination of lower temperatures and higher humidity in October makes it feel significantly cooler and more damp than the relatively pleasant conditions of June. For more details on the pleasant weather of June, visit Reykjavik weather in June.
When comparing the weather in October and July, it's clear that October is considerably cooler and wetter. In October, temperatures range from a chilly -4°C (25°F) at night to a mild 13°C (56°F) during the day, while July enjoys temperatures from a minimum of 4°C (40°F) to a pleasant maximum of 21°C (71°F). Additionally, October experiences more precipitation, with about 96 mm (3.8 in) falling over 16 days, compared to July's 75 mm (3.0 in) over the same number of days. Humidity is also higher in October at 93%, versus July's 86%. For a more detailed look at July weather, you can visit Reykjavik weather in July.
In comparing the weather of October to that of August, we find notable differences in temperature and precipitation. October tends to be significantly cooler, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (56°F), whereas August offers a milder climate, with averages between 5°C (41°F) and 20°C (68°F). Additionally, October experiences more precipitation, totaling 96 mm (3.8 in) over 16 days, compared to August's 83 mm (3.3 in) over 15 days. Humidity levels are also higher in October at 93%, compared to 88% in August. For more detailed information about August weather, you can check Reykjavik weather in August.
October's weather is characterized by a cooler temperature range compared to September, with average highs dropping from 15°C (60°F) in September to 13°C (56°F) in October. While the minimum temperatures in both months are similar, October sees a slightly colder minimum of -4°C (25°F) compared to September's -2°C (29°F). Precipitation is also notable; October receives 96 mm (3.8 in) over 16 days, which is less than September's higher total of 164 mm (6.5 in) spread across 20 days. Interestingly, humidity levels remain quite high, with October at 93% and September at 92%. For those interested in a detailed comparison, further information can be found in the link: Reykjavik weather in September.
October and November present distinct shifts in weather patterns. In October, temperatures range from a minimum of -4°C (25°F) to a maximum of 13°C (56°F), with an average of 5°C (42°F). The month sees about 96 mm (3.8 in) of precipitation over 16 days, accompanied by high humidity levels at 93%. Contrastingly, November experiences colder temperatures, with a minimum of -10°C (15°F) and an average of 2°C (35°F), peaking at 11°C (53°F). Precipitation slightly increases to 105 mm (4.1 in) across 15 days, with humidity remaining similar at 94%. For further details, visit Reykjavik weather in November.
In October, temperatures in Reykjavik range from a minimum of -4°C (25°F) to a maximum of 13°C (56°F), with an average of 5°C (42°F). The month is characterized by significant precipitation, totaling 96 mm (3.8 in) over approximately 16 days, resulting in a high humidity level of 93%. In contrast, December sees colder conditions, with temperatures dropping to a minimum of -13°C (9°F) and an average temperature of 0°C (33°F), peaking at 10°C (50°F). Precipitation increases slightly to 106 mm (4.2 in) over 17 days, and the humidity remains high at 95%. For more detailed information, you can check Reykjavik weather in December.
As October settles in Reykjavik, the weather takes on a distinct character, marked by cooler temperatures and increased precipitation compared to the months that precede it. With the average temperature hovering around 5°C (42°F), the crisp air is a reminder that winter is on the horizon. Unlike the milder early autumn months, October can be quite wet, with rain gracing the city on nearly half the days of the month, leading to a higher humidity level of 93%. This blend of chill and moisture lends the landscape a dramatic and dynamic beauty, making it an interesting time to experience the city's rugged charm. For a deeper understanding of how the seasons evolve in this captivating destination, explore the detailed insights on Reykjavik Climate.