October Weather in Dalkey, Ireland

Last updated: March 17, 2025

October in Dalkey, Ireland showcases a dynamic climate marked by a maximum temperature of 18°C (64°F) and an average of 12°C (53°F), dipping to a chilly 5°C (41°F) at night. This month witnesses notable precipitation, with a total of 101 mm (4.0 in) spread over 16 days, creating an atmosphere of freshness complemented by high humidity levels of 87%. Visitors can expect the charm of early autumn, where the crisp air and frequent showers set the perfect backdrop for discovering Dalkey's scenic beauty.

October Temperature in Dalkey

As October unfolds in Dalkey, Ireland, temperatures begin to herald the approach of winter. With minimums averaging 5°C (41°F), the brisk air signals a noticeable shift from the milder September days. The average temperature rises to a comfortable 12°C (53°F), offering a pleasant respite from the chill, while maximums can reach up to 18°C (64°F), providing occasional sunny moments that invite outdoor exploration. This month marks a transition, as days grow shorter and the landscape transforms, encouraging cozy gatherings and scenic walks through this charming coastal town.

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

The chart illustrates October temperature patterns in Dalkey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444445475156595957534946
Data source: Temperature data for Dalkey 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.

October Precipitation in Dalkey

October in Dalkey, Ireland, marks a notable transition as the month showcases one of the highest precipitation levels, with 101 mm (4.0 in) of rain spread over 16 days. This increase in rainfall reflects a shift into wetter autumn weather, where the skies frequently open up to nourish the lush Irish landscapes. Compared to the preceding months, October's precipitation surpasses September's 82 mm (3.2 in), continuing a pattern of progressively increasing moisture leading into the winter months. As autumn deepens, it is not uncommon for Dalkey to experience the highest rainfall totals, with November even higher at 127 mm (5.0 in). This trend highlights the region's climatic characteristic of escalating precipitation as the year winds down, inviting both beauty and the occasional challenge for outdoor activities.

October Precipitation Trends in Dalkey

The chart displays monthly precipitation patterns in Dalkey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec708687486175789682101127110
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Dalkey

In Dalkey, Ireland, October brings a noticeable rise in humidity, peaking at 87%, which marks a slight increase from the already moist conditions of September at 86%. This trend towards heightened humidity is consistent as the autumn months progress, with October typically being one of the more humid times of the year. Interestingly, the humidity levels in Dalkey maintain a fairly stable range throughout the year, hovering between 83% and 87%. While the winter months approach, it’s clear that the air remains rich with moisture, wrapping the picturesque coastal town in a cool, damp embrace characteristic of the Irish climate.

October Average Humidity in Dalkey

This chart illustrates the average monthly humidity levels in Dalkey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Dalkey

In October, Dalkey experiences a moderate UV Index of 3, indicating the need for some sun protection during your outdoor activities, with a burn time of approximately 30 minutes. This month marks a transition into the cooler autumn days, where the UV exposure decreases from the high levels seen during the summer months, particularly July and June when the UV Index reached 8. After a gradual decline from the peak summer sun, October's UV Index offers a balance—enhancing your outdoor enjoyment without the intense risk of sunburn prevalent in earlier months. As the season progresses towards winter, it's essential to remain mindful of the changing UV levels. For more information, visit Dalkey UV Index.

Maximum UV Index Levels in Dalkey for October

The chart shows the monthly maximum UV Index (UVI) for Dalkey 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: Dalkey 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 Dalkey

October in Dalkey, Ireland, brings a delightful mix of autumnal charm and a respectable 237 hours of sunshine. As the year progresses, we witness a noticeable shift in daylight, peaking in the vibrant longer days of spring and summer with May offering the most sun at 408 hours. However, as the cozy autumn months roll in, the decreasing hours from September's 308 hours to October's 237 hours illustrate nature's gentle transition toward winter. This pattern highlights the allure of October, where golden leaves contrast beautifully against the remaining warmth of sunny afternoons, inviting residents and visitors alike to bask in the last glimpses of sunlight before winter settles in.

Monthly Sunshine Duration in Dalkey: October Highlighted

The October sunshine duration represents the total number of hours Dalkey 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.
JanFebMarAprMayJunJulAugSepOctNovDec87h153h207h329h408h401h403h361h308h237h127h101h
Data source: Dalkey October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dalkey During October

In Dalkey, Ireland, the likelihood of sunny weather takes a noticeable dip in October, with only a 21% chance of sunshine. This trend is consistent with the onset of autumn, as daylight dwindles and cloud cover typically increases. Compared to the spring months where April boasts a 49% chance of sun, October's figures reflect a significant decline, nestled among other cooler months like September and November, which hover around 23% to 27%. Thus, while October ushers in the colorful canvas of fall, sunny days become more elusive, urging locals and visitors alike to embrace the charm of cozy indoors as the weather shifts.

Percentage of Sunny Days in October in Dalkey

The chart illustrates the percentage of sunny days in Dalkey 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 Dalkey experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%23%25%49%35%27%34%27%23%21%27%24%
Data source: Dalkey October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dalkey in October

As the crisp autumn air settles in, October in Dalkey, Ireland, brings a noticeable shift in daylight hours, offering about 10 hours of natural light. Following the long, sun-kissed days of summer, which peaked in June and July with 16 hours of daylight, October marks a gradual descent into shorter days. This transitional month serves as a bridge, gradually tapering off from the vibrant 14 hours in August and descending to 12 hours in September. The decline in daylight continues into the winter months, where November and December will see daylight reduced to just 8 and 7 hours respectively. This pattern reflects Ireland's seasonal rhythm, captivating residents and visitors alike with the changing landscape of light throughout the year.

Average Daylight Hours in Dalkey for October

The chart illustrates the variation in daylight duration in Dalkey throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 9m9h 50m11h 54m14h 1m15h 52m16h 50m16h 19m14h 39m12h 36m10h 31m8h 38m7h 37m
Data source: Dalkey daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Dalkey

As October unfolds in Dalkey, Ireland, the wind begins to pick up, with an average speed of 6.7 m/s (15 mph), marking a shift from the lighter breezes of summer. This increase in wind speed is a reminder of the transitional nature of autumn, bridging the calm of July and August—when winds slowed to their lowest at 3.4 m/s (8 mph)—to the more blustery conditions that follow in November and December. Throughout the year, the winds typically maintain a rhythmic pattern, peaking in strength during the colder months. October's gusts, though moderate compared to the peaks earlier in the year, evoke a sense of anticipation for the winter gales ahead, making it a vibrant time to experience the windswept beauty of Dalkey’s coastal landscape.

Average October Wind Speed in Dalkey

The chart displays monthly wind speed patterns in Dalkey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.48.26.04.65.24.83.44.64.36.7 m/s6.66.8
Data source: Dalkey October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Dalkey Compares to Other Months

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

In October, temperatures typically range from a minimum of 5°C (41°F) to a maximum of 18°C (64°F), with an average temperature of 12°C (53°F). The month is characterized by high humidity at 87% and significant rainfall, averaging 101 mm (4.0 in) over 16 days. In contrast, January presents cooler conditions, with temperatures ranging from a low of 1°C (33°F) to a high of 13°C (56°F) and an average of 7°C (44°F). While January sees less rainfall, totaling around 70 mm (2.7 in) over 11 days, the humidity is slightly lower at 85%. For a detailed look at January weather, check out Dalkey weather in January.

October and February present distinct weather patterns that reflect the transition between seasons. In October, temperatures range from a minimum of 5°C (41°F) to a maximum of 18°C (64°F), with an average of 12°C (53°F). The month also experiences higher precipitation, averaging 101 mm (4.0 in) over approximately 16 days, alongside a humidity level of 87%. In contrast, February is cooler, with temperatures dipping to a minimum of 0°C (33°F) and peaking at 13°C (56°F), averaging 7°C (45°F). Precipitation is slightly lower at 86 mm (3.4 in) across about 15 days, with humidity being slightly lower at 86%. For a detailed look at February's weather, visit Dalkey weather in February.

October and March display distinct weather characteristics across various metrics. In October, temperatures range from a chilly 5°C (41°F) at night to a comfortable 18°C (64°F) during the day, with an average of 12°C (53°F). The month experiences a higher level of precipitation, totaling 101 mm (4.0 in) over approximately 16 days, while humidity remains high at 87%. Conversely, March is cooler, with nighttime lows dipping to -3°C (28°F) and daytime highs reaching 13°C (55°F), averaging 7°C (45°F). The precipitation in March is slightly lower at 87 mm (3.4 in) over 15 days, and relative humidity is also slightly less at 86%. For a detailed look at the weather specifics in March, you can visit Dalkey weather in March.

When comparing the weather in October and April, October tends to be cooler and wetter. In October, temperatures range from a minimum of 5°C (41°F) to a maximum of 18°C (64°F), with an average of 12°C (53°F). The month experiences significant rainfall, totaling 101 mm (4.0 in) over about 16 days, contributing to a high humidity level of 87%. In contrast, April is slightly milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 15°C (58°F) and an average of 8°C (47°F). Precipitation is lighter, amounting to 48 mm (1.9 in) across 11 days, and the humidity is slightly lower at 85%. For a more detailed look at April's weather, you can visit Dalkey weather in April.

In comparing October and May weather, we see some notable differences. October tends to be slightly warmer, with average temperatures around 12°C (53°F), while May has an average of 11°C (52°F). Despite October's higher temperatures, it brings more precipitation, with 101 mm (4.0 in) falling over 16 days, compared to May's 61 mm (2.4 in) over just 12 days. Humidity levels are also quite similar; October is at 87%, while May sits at a slightly lower 83%. For a more detailed understanding of May's climate, you can check out Dalkey weather in May.

In October, the weather tends to be cooler with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 18°C (64°F), while June features slightly warmer conditions with minimums starting at 8°C (46°F) and highs reaching 19°C (67°F). Rainfall is more frequent in October, averaging 101 mm (4.0 in) over about 16 days, compared to June, which sees 75 mm (2.9 in) across 13 days. Additionally, October's humidity is slightly higher at 87%, compared to June's 85%. For a closer look at June weather specifics, check out Dalkey weather in June.

In comparing the weather between October and July, October tends to be cooler, with a minimum temperature of 5°C (41°F) compared to July's 10°C (51°F). The average temperature in October is 12°C (53°F), slightly lower than July's average of 15°C (60°F). While July enjoys a maximum temperature of 20°C (68°F), October peaks at 18°C (64°F). In terms of precipitation, October sees more rainfall, with 101 mm (4.0 in) over 16 days, whereas July receives 78 mm (3.1 in) over 14 days. The humidity levels are fairly similar, with October at 87% and July at 86%. For more detailed insights on July weather, you can visit Dalkey weather in July.

October weather tends to be cooler and wetter compared to August. The minimum temperature in October drops to 5°C (41°F), while August starts at a milder 10°C (51°F), resulting in an average temperature difference of about 3°C. Both months experience similar levels of precipitation, with October registering 101 mm (4.0 in) and August 96 mm (3.8 in) over approximately 16 days. Humidity levels are slightly higher in October at 87% compared to 85% in August, contributing to a distinct change in the overall feel of the weather. For more detailed insights about August weather, you can refer to Dalkey weather in August.

In comparing the weather of October and September, we see a noticeable shift in temperatures and precipitation. In October, the average temperature drops to 12°C (53°F), with a minimum of 5°C (41°F) and a maximum of 18°C (64°F), compared to September's warmer averages of 14°C (57°F) and highs of 20°C (68°F). Precipitation also increases in October, accumulating to 101 mm (4.0 in) over 16 days, while September recorded 82 mm (3.2 in) across 14 days. Additionally, October's humidity rises slightly to 87%, just above September's 86%. For more details on September's weather, you can check Dalkey weather in September.

In October, the weather typically showcases milder temperatures, with an average of 12°C (53°F) and a maximum of 18°C (64°F). However, as November arrives, average temperatures drop to 9°C (49°F), peaking at 15°C (59°F). October experiences a slightly higher humidity level of 87% and 101 mm (4.0 in) of precipitation over 16 days. In contrast, November sees increased precipitation, totaling 127 mm (5.0 in) across 17 days, with humidity dropping to 86%. For a detailed look at conditions during this month, check Dalkey weather in November.

October and December present contrasting yet similar weather conditions. In October, temperatures range from a minimum of 5°C (41°F) to a maximum of 18°C (64°F), with an average of 12°C (53°F). The month experiences considerable rainfall, with 101 mm (4.0 in) of precipitation over 16 days and humidity levels at 87%. In comparison, December sees a further drop in temperatures, with a minimum of 2°C (35°F) and a maximum of 13°C (56°F), averaging 8°C (46°F). The precipitation increases slightly to 110 mm (4.3 in) across the same number of rainy days, while humidity remains slightly lower at 84%. For a closer look at the specifics, check out Dalkey weather in December.

Compare Dalkey's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Dalkey

As October unfolds in Dalkey, the weather presents a distinct shift compared to the preceding months. With maximum temperatures reaching a mild 18°C (64°F), this transition marks a notable cooling trend, averaging around 12°C (53°F), and dipping to a minimum of 5°C (41°F) at night. Rainfall is a frequent visitor, with approximately 101 mm (4.0 in) of precipitation spread across 16 days, contributing to the month’s characteristically high 87% humidity. This combination of cooler temperatures and increased moisture leaves the landscape lush and atmospheric, contrasting sharply with the drier, warmer spells of summer. To learn more about Dalkey's changing climate, visit Dalkey Climate.