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October Weather in Dublin, United States

Last updated: June 24, 2025

In October, the average temperature in Dublin, United States hovers around 20°C (68°F). However, be prepared for a diverse range, with minimum temperatures dipping to 1°C (33°F) and soaring up to a scorching 38°C (100°F). Expect 98 mm (3.8 in) of precipitation spread over 7 days, and a cozy average humidity level of 73%. Whether you're looking to bask in the warmth or embrace a cooler day, October in Dublin offers an intriguing weather experience!

October Temperature in Dublin

In October in Dublin, the average temperature is 20°C (68°F), with maximums reaching 38°C (100°F) and minimums dipping as low as 1°C (33°F). Be prepared for a wide range of temperatures during your trip, making layering your clothing essential for comfort.

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

The chart illustrates October temperature patterns in Dublin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dublin, October typically has an average temperature of 20°C (68°F), with highs reaching up to 38°C (100°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec474960667481858578685752
Data source: Temperature data for Dublin 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 Dublin

In Dublin in October, the precipitation amount is 98 mm (3.8 in) over a span of 7 days.

October Precipitation Trends in Dublin

The chart displays monthly precipitation patterns in Dublin, 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. In Dublin, October typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec4271847511963437175983837
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Dublin

In Dublin in October, humidity is 73%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities somewhat sticky, yet the atmosphere remains pleasant for leisurely strolls and sightseeing.

October Average Humidity in Dublin

This chart illustrates the average monthly humidity levels in Dublin, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Dublin is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Dublin

In Dublin in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Dublin.

Maximum UV Index Levels in Dublin for October

The chart shows the monthly maximum UV Index (UVI) for Dublin 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. In October, the maximum UV index in Dublin typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110864
Data source: Dublin 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.

How October Weather in Dublin Compares to Other Months

Weather in Dublin varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Dublin, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Dublin, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)42 mm (1.6 inches)78%moderate
February Weather10°C (50°F)71 mm (2.8 inches)78%high
March Weather16°C (61°F)84 mm (3.3 inches)77%very high
April Weather19°C (66°F)75 mm (2.9 inches)78%very high
May Weather24°C (75°F)119 mm (4.7 inches)82%extreme
June Weather27°C (82°F)63 mm (2.5 inches)78%extreme
July Weather30°C (85°F)43 mm (1.7 inches)69%extreme
August Weather29°C (85°F)71 mm (2.8 inches)63%extreme
September Weather26°C (79°F)75 mm (2.9 inches)66%very high
October Weather20°C (68°F)98 mm (3.8 inches)73%very high
November Weather14°C (57°F)38 mm (1.5 inches)84%high
December Weather11°C (52°F)37 mm (1.4 inches)87%moderate

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