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October Weather in Charlestown, Ireland

Last updated: August 23, 2025

In October, the average temperature in Charlestown, Ireland hovers around 10°C (50°F), making it a crisp and refreshing time of year. Minimum temperatures can dip as low as -1°C (31°F), while the maximum can reach a pleasant 20°C (68°F). With precipitation totaling 120 mm (4.7 in) over 19 days, be prepared for occasional showers. The average humidity is a high 91%, so pack accordingly for a cozy, albeit damp, adventure!

October Temperature in Charlestown

In October in Charlestown, the average temperature is 10°C (50°F), with maximums reaching 20°C (68°F) and minimums dropping as low as -1°C (31°F). Be sure to pack layered clothing to stay comfortable during your travels.

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

The chart illustrates October temperature patterns in Charlestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charlestown, October typically has an average temperature of 10°C (50°F), with highs reaching up to 20°C (68°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475256595855504643
Data source: Temperature data for Charlestown 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 Charlestown

In Charlestown in October, the precipitation amount is 120 mm (4.7 in) over the course of 19 days.

October Precipitation Trends in Charlestown

The chart displays monthly precipitation patterns in Charlestown, 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 Charlestown, October typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec791241076582989614790120104109
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Charlestown

In Charlestown in October, humidity is 91%. With an average temperature of 10°C (50°F), this humidity feels like an enveloping dampness that makes traveling a bit uncomfortable, as the moisture clings to your skin and dampens your clothes, soaking up any residual warmth from the cool air.

October Average Humidity in Charlestown

This chart illustrates the average monthly humidity levels in Charlestown, 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 Charlestown is approximately 91%, offering insight into how humid the weather typically is during this month.
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 Charlestown

In Charlestown in October, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Charlestown, you can check the information here.

Maximum UV Index Levels in Charlestown for October

The chart shows the monthly maximum UV Index (UVI) for Charlestown 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 Charlestown typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Charlestown 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 Charlestown Compares to Other Months

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

This table compares monthly weather conditions in Charlestown, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)79 mm (3.1 inches)88%low
February Weather6°C (43°F)124 mm (4.9 inches)88%low
March Weather6°C (44°F)107 mm (4.2 inches)87%moderate
April Weather9°C (48°F)65 mm (2.6 inches)86%moderate
May Weather11°C (53°F)82 mm (3.2 inches)83%high
June Weather13°C (56°F)98 mm (3.8 inches)83%very high
July Weather15°C (59°F)96 mm (3.8 inches)85%very high
August Weather15°C (59°F)147 mm (5.8 inches)85%high
September Weather13°C (55°F)90 mm (3.5 inches)88%moderate
October Weather10°C (50°F)120 mm (4.7 inches)91%moderate
November Weather8°C (46°F)104 mm (4.1 inches)92%low
December Weather6°C (44°F)109 mm (4.3 inches)89%low

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