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October Weather in Dorchester, Canada

Last updated: June 18, 2025

In Dorchester, Canada, the average temperature in October hovers around 11°C (52°F). During this time, temperatures can swing from a chilly -2°C (28°F) to a warm 28°C (83°F). Expect 120 mm (4.7 in) of precipitation spread over approximately 14 days, contributing to an average humidity of 84%.

October Temperature in Dorchester

In October in Dorchester, the average temperature is 11°C (52°F). Maximum temperatures can reach 28°C (83°F) while minimums can drop as low as -2°C (28°F). This range makes Dorchester an ideal destination for travelers seeking both mild days and cool nights, perfect for exploring the area comfortably.

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

The chart illustrates October temperature patterns in Dorchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dorchester, October typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec252634435666727063523831
Data source: Temperature data for Dorchester 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 Dorchester

In Dorchester in October, the precipitation amount is 120 mm (4.7 in) over the course of 14 days.

October Precipitation Trends in Dorchester

The chart displays monthly precipitation patterns in Dorchester, 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 Dorchester, October typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec7679781091021049596831208774
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Dorchester

In Dorchester in October, humidity is 84%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket, making it uncomfortable for traveling as the dampness clings to your skin and can leave you feeling sluggish and fatigued.

October Average Humidity in Dorchester

This chart illustrates the average monthly humidity levels in Dorchester, 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 Dorchester is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%88%87%83%81%79%80%81%84%88%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Dorchester

In Dorchester in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Dorchester.

Maximum UV Index Levels in Dorchester for October

The chart shows the monthly maximum UV Index (UVI) for Dorchester 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 Dorchester typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101098542
Data source: Dorchester 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 Dorchester Compares to Other Months

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

This table compares monthly weather conditions in Dorchester, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)76 mm (3.0 inches)90%low
February Weather-3°C (26°F)79 mm (3.1 inches)90%moderate
March Weather1°C (34°F)78 mm (3.1 inches)87%moderate
April Weather6°C (44°F)109 mm (4.3 inches)87%very high
May Weather14°C (57°F)102 mm (4.0 inches)82%very high
June Weather19°C (67°F)104 mm (4.1 inches)81%very high
July Weather22°C (72°F)95 mm (3.7 inches)79%very high
August Weather21°C (70°F)96 mm (3.8 inches)80%very high
September Weather17°C (63°F)83 mm (3.2 inches)81%very high
October Weather11°C (52°F)120 mm (4.7 inches)84%moderate
November Weather3°C (38°F)87 mm (3.4 inches)88%moderate
December Weather-1°C (31°F)74 mm (2.9 inches)87%low

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