October Weather in Portumna, Ireland

Last updated: March 17, 2025

October in Portumna, Ireland brings a delightful yet unpredictable mix of weather, where daytime temperatures can reach a comfortable 20°C (67°F), while averages hover around 10°C (51°F). As the month progresses, the chilly nights can dip to a brisk 0°C (33°F). Rain is a frequent companion, with 95 mm (3.7 inches) of precipitation falling over approximately 15 days, contributing to the region's lush landscapes. Adding to the ambiance, the air is thick with humidity at 91%, creating an enchanting mist that characterizes this autumnal season in the heart of Ireland.

October Temperature in Portumna

In October, Portumna, Ireland, transitions into the crisp embrace of autumn, with temperatures ranging from a chilly 0°C (33°F) at night to a pleasant 20°C (67°F) during the day. The average temperature settles at 10°C (51°F), marking a definitive drop from the warmer months. As the autumn leaves turn, residents and visitors alike experience a delightful blend of cool breezes and mild sunshine, perfectly suited for outdoor walks amid the stunning fall foliage. This month signifies a shift, moving from the lingering warmth of September's max of 26°C (79°F), as the landscape prepares for the colder months ahead, underscoring how quickly the Irish weather can change with the seasons.

October Weather in Portumna: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Portumna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424344485357605956514644
Data source: Temperature data for Portumna 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.

October Precipitation in Portumna

October in Portumna, Ireland, marks a transition into autumn, characterized by moderate precipitation. With 95 mm (3.7 inches) of rainfall spread over 15 days, the month sees a noticeable uptick in wet weather compared to the preceding September. This increase not only signifies the onset of the wetter season but also aligns with the monthly precipitation averages, illustrating a consistent pattern of higher autumnal rainfall. As the landscape shifts into vibrant fall hues, the frequency of rainy days serves as a reminder of Ireland's unpredictable climate, echoing the overall trend of varied precipitation throughout the year, yet stabilizing into more regular rainfall patterns during the autumn months.

October Precipitation Trends in Portumna

The chart displays monthly precipitation patterns in Portumna, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6711310156667076110799591109
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Portumna

In October, Portumna, Ireland, experiences a notable rise in humidity, reaching 91%, the highest level since January’s 88%. This increase marks a shift as the year transitions into autumn, with humidity gradually climbing from 83% in June and May to a peak in the fall months. Interestingly, September also had a high humidity level of 88%, hinting at a trend of increased moisture as the seasons change. Following October, November continues this trend with an even higher humidity of 92%, suggesting that the cool, crisp air of autumn might carry a dampness that envelops Portumna in its chillier months.

October Average Humidity in Portumna

This chart illustrates the average monthly humidity levels in Portumna, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Portumna

In October, Portumna, Ireland experiences a moderate UV Index of 3, making it essential for outdoor enthusiasts to be mindful of sun exposure. While this marks a slight decline from the late summer peaks of UV Indexes 7 and 8 in July and June, October's burn time remains at approximately 30 minutes. This seasonal shift underscores the gradual transition toward winter, as the UV Index decreases, offering a reminder to stay sun-safe even as the days grow shorter. To stay informed on UV forecasts year-round, visit Portumna UV Index.

Maximum UV Index Levels in Portumna for October

The chart shows the monthly maximum UV Index (UVI) for Portumna in October, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Portumna October 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.

October Sunshine in Portumna

As October unfolds in Portumna, Ireland, the golden embrace of sunshine casts a warm glow for 212 hours, a delightful peak before the days grow shorter. Following a vibrant summer, where July and August basked in 363 and 296 hours of sunlight respectively, October offers a vivid transition into autumn’s charm. The decrease from the brightness of earlier months underscores a shift towards winter, but the lingering warmth of early fall still invites outdoor adventures. Interestingly, while November's sunlight dwindles to just 109 hours, October stands resilient, bridging the gap between the lush lushness of summer and the crisp, quietude of winter. This blend of sunshine showcases the magical beauty of Portumna as it begins to don its autumn attire.

Monthly Sunshine Duration in Portumna: October Highlighted

The October sunshine duration represents the total number of hours Portumna experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec72h127h165h276h361h354h363h296h261h212h109h84h
Data source: Portumna October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Portumna During October

In Portumna, Ireland, the likelihood of sunny weather sees a notable decline as autumn sets in, with October offering just a 17% chance of sunshine. This is part of a broader trend where the chances of sun are generally low during the year, peaking modestly in April at 41% before steadily decreasing through the summer months and into autumn. The data reveals that October shares its low probability with March and boasts one of the weakest prospects for sunny days amongst the months. As the year winds down, residents and visitors alike can expect a significant drop in cheerful sunlight, making October a month more suited for cozy indoors than sunny outings.

Percentage of Sunny Days in October in Portumna

The chart illustrates the percentage of sunny days in Portumna throughout the year, with October 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 Portumna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%21%17%42%31%20%26%23%16%17%25%19%
Data source: Portumna October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Portumna in October

As autumn unfolds in Portumna, Ireland, October brings a noticeable shift in daylight duration, providing about 10 hours of sunlight each day. This marks a decline from the balmy 16 hours enjoyed during the height of summer in June and July. As the days gradually shorten, October follows a pattern established by the preceding months, transitioning from the vibrant 14 hours in August, through the more moderate 12 hours of September. This gentle tapering of daylight foreshadows the return of the longer, cozier nights typical of winter, reminiscent of January's 8 hours. The cycle of seasons in Portumna not only enhances the landscape but also invites residents and visitors alike to savor the beauty of the golden hues that linger as day turns into night.

Average Daylight Hours in Portumna for October

The chart illustrates the variation in daylight duration in Portumna throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 10m9h 51m11h 54m14h 1m15h 51m16h 50m16h 19m14h 38m12h 36m10h 31m8h 38m7h 37m
Data source: Portumna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Portumna

As October sweeps into Portumna, Ireland, the average wind speed picks up to a brisk 4.0 m/s (9 mph), marking a notable shift from the calmer summer months. This increase signals the transition into autumn, after a notably tranquil July that recorded the lowest winds of the year at 2.5 m/s (6 mph). Compared to the earlier months, October's winds return to a more invigorating pace, reminiscent of the crisp breezes felt in the preceding spring months. With a slight dip in November to 3.8 m/s (8 mph), the winds remain consistent enough to bring an energetic essence to the breathtaking fall landscape. Such trends highlight the dynamic nature of Portumna's October weather, capturing the dance of the autumn leaves as they sway in the invigorating wind.

Average October Wind Speed in Portumna

The chart displays monthly wind speed patterns in Portumna, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.65.24.13.23.63.42.53.23.24.0 m/s3.84.2
Data source: Portumna October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Portumna Compares to Other Months

The weather in Portumna 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 Portumna and find detailed weather information for every month.

October and January present contrasting weather patterns. In October, temperatures range from a chilly 0°C (33°F) at night to a mild 20°C (67°F) during the day, with an average temperature of 10°C (51°F). The month experiences significant rainfall, totaling 95 mm (3.7 in) over approximately 15 days, contributing to a high humidity level of 91%. In stark contrast, January brings colder temperatures, with a minimum of -6°C (22°F) and a maximum of 14°C (57°F), averaging around 6°C (43°F). While January is drier with 67 mm (2.6 in) of precipitation spread over 12 days and slightly lower humidity at 88%, it still feels much colder compared to the milder October days. For more details about January weather, visit Portumna weather in January.

In comparing October and February weather, October tends to be milder, with average temperatures ranging from a chilly 0°C (33°F) to a comfortable 20°C (67°F), while February's temperatures dip lower, averaging between -3°C (27°F) and 15°C (60°F). Precipitation is slightly higher in February, with 113 mm (4.4 in) falling over 17 days, compared to 95 mm (3.7 in) over 15 days in October. Interestingly, the humidity remains relatively high in both months, with October at 91% and February at 88%. For a more detailed look at February weather, check out Portumna weather in February.

October and March present distinct weather patterns as the seasons transition. In October, temperatures range from a minimum of 0°C (33°F) to a maximum of 20°C (67°F), with an average of 10°C (51°F), while March features cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 17°C (63°F), averaging at 7°C (44°F). Both months experience significant precipitation, with October receiving 95 mm (3.7 in) over 15 days and March slightly more at 101 mm (4.0 in) over 17 days. Additionally, October holds a higher humidity level at 91%, compared to March’s 87%. For a more detailed look at March conditions, visit Portunna weather in March.

In comparing October and April weather, October tends to be slightly warmer overall, with average temperatures around 10°C (51°F) and a maximum of 20°C (67°F). In contrast, April has a slightly lower average temperature of 9°C (48°F) and reaches a maximum of 21°C (70°F). Precipitation is more frequent in October, occurring over 15 days with 95 mm (3.7 in) of rainfall compared to April's 10 days and 56 mm (2.2 in). Additionally, October experiences higher humidity at 91%, while April's humidity rests at 86%. For those interested in the specifics of April's climate, you can find more details here: Portumna weather in April.

October and May exhibit distinct weather characteristics, reflecting the change of seasons. In October, temperatures range from a chilly 0°C (33°F) at night to a mild 20°C (67°F) during the day, with an average of 10°C (51°F). This month also experiences significant precipitation, totaling 95 mm (3.7 in) over approximately 15 days, contributing to a high humidity level of 91%. In contrast, May brings slightly warmer temperatures, with a minimum of -1°C (31°F) and a maximum of 24°C (76°F), averaging around 11°C (53°F). Precipitation is lower in May, at 66 mm (2.6 in) over 13 days, and humidity is also less pronounced at 83%. For more specific insights on May weather patterns, you can check Portumna weather in May.

In October, temperatures can drop significantly, with a minimum of 0°C (33°F) and an average of 10°C (51°F), compared to June, where the temperature remains milder with a minimum of 5°C (41°F) and an average of 14°C (57°F). October experiences more precipitation, totaling 95 mm (3.7 in) over about 15 days, while June sees less, with 70 mm (2.8 in) falling over 14 days. Additionally, October is slightly more humid at 91%, compared to June's 83%. For a more in-depth look at June weather, you can check out Portumna weather in June.

In comparing the weather of October and July, October presents a much cooler climate, with temperatures ranging from a chilly minimum of 0°C (33°F) to a comfortable maximum of 20°C (67°F). In contrast, July enjoys warmer conditions, featuring temperatures between 7°C (44°F) and 28°C (83°F). While October sees a higher average humidity of 91% and significant precipitation of 95 mm over 15 days, July experiences slightly lower humidity at 85% and less rainfall, totaling 76 mm over 13 days. For those interested in the specifics of July weather, you can find more information at Portumna weather in July.

When comparing the weather of October and August, distinct contrasts emerge. October typically showcases cooler temperatures, with a minimum of 0°C (33°F) and an average of 10°C (51°F), well below August’s milder range of 6°C (43°F) to 24°C (76°F). While both months experience significant precipitation, October sees around 95 mm (3.7 in) over about 15 days, slightly less than August's 110 mm (4.3 in) over 18 days. Humidity levels are higher in October at 91%, compared to 85% in August, contributing to a heavier, more overcast feel as autumn sets in. For more specific insights, check out Portumna weather in August.

In comparing the weather between September and October, October experiences cooler temperatures with a minimum of 0°C (33°F) and an average of 10°C (51°F), while September maintains a warmer range with a minimum of 2°C (36°F) and an average of 13°C (56°F). The maximum temperatures in October peak at 20°C (67°F), which is significantly lower than September's maximum of 26°C (79°F). Precipitation increases slightly in October with 95 mm (3.7 in) over 15 days, compared to September's 79 mm (3.1 in) across 14 days, and the humidity also rises in October to 91%, compared to 88% in September. For a more detailed look at September weather, visit Portumna weather in September.

In October, temperatures range from a chilly 0°C (33°F) to a pleasant high of 20°C (67°F), with an average of 10°C (51°F). The month sees significant rainfall, totaling 95 mm (3.7 in) over about 15 days, accompanied by high humidity at 91%. In contrast, November brings cooler conditions, with minimum temperatures dropping to -2°C (28°F) and a maximum of 15°C (60°F), resulting in an average of 8°C (46°F). Precipitation is slightly lower in November, measuring 91 mm (3.6 in) over the same 15 days, while humidity remains relatively high at 92%. For more detailed information on weather conditions, you can refer to Portumna weather in November.

October and December present notable differences in weather characteristics. In October, temperatures range from a minimum of 0°C (33°F) to a maximum of 20°C (67°F), with an average of 10°C (51°F) and relatively high humidity at 91%. The month sees considerable precipitation, totaling 95 mm (3.7 in) across approximately 15 rainy days. In contrast, December experiences cooler conditions, with temperatures dipping to a minimum of -6°C (22°F) and an average of 6°C (44°F). Rainfall increases slightly to 109 mm (4.3 in) over 17 days, accompanied by a slightly lower humidity level of 89%. For those looking to explore weather specifics in December, check out Portumna weather in December.

Compare Portumna's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Portumna

As October settles in Portumna, the weather showcases a distinct shift from the milder months of summer. Daytime temperatures drop to a cool average of 10°C, while nights can chill down to freezing. With 95 mm of rain over about 15 days, this month is characterized by increased precipitation that adds to the 92% humidity, creating a damp atmosphere. As nature transitions into autumn, it’s a time for cozy layers and vibrant fall colors. For a deeper understanding of how October conditions fit into the broader climate, visit Portumna Climate.