October Weather in Maine, United States

Last updated: June 24, 2025

In October, the average temperature in Maine, United States hovers around 8°C (47°F). While you might encounter chilly nights with a minimum of -6°C (21°F), the days can warm up significantly, reaching a maximum of 27°C (80°F). Expect 109 mm (4.3 in) of rain spread over approximately 11 days, combined with a high average humidity of 84%. Prepare for a diverse climate that keeps you on your toes!

October Temperature in Maine

In October in Maine, the average temperature is 8°C (47°F). Maximum temperatures can reach 27°C (80°F), while minimums can dip as low as -6°C (21°F). Be prepared for a range of temperatures, making it ideal for both outdoor adventures and cozy indoor activities.

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

The chart illustrates October temperature patterns in Maine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Maine, October typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (80°F) and lows dropping to around -6°C (21°F).

Data source: Temperature data for Maine generated using information from the Copernicus Climate Change Service.

October Precipitation in Maine

In Maine in October, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 days.

October Precipitation Trends in Maine

The chart displays monthly precipitation patterns in Maine, 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 Maine, October typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Maine

In Maine in October, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

October Average Humidity in Maine

This chart illustrates the average monthly humidity levels in Maine, 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 Maine is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Maine

In Maine 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 Maine.

Maximum UV Index Levels in Maine for October

The chart shows the monthly maximum UV Index (UVI) for Maine 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 Maine typically reaches 5, which falls under the moderate exposure category.

Data source: Maine 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 Maine Compares to Other Months

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

This table compares monthly weather conditions in Maine, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	34 mm (1.3 inches)	89%	low
February Weather	-8°C (17°F)	50 mm (2.0 inches)	90%	moderate
March Weather	-1°C (31°F)	53 mm (2.1 inches)	87%	moderate
April Weather	5°C (42°F)	98 mm (3.9 inches)	84%	high
May Weather	13°C (56°F)	103 mm (4.1 inches)	77%	very high
June Weather	19°C (67°F)	102 mm (4.0 inches)	75%	very high
July Weather	22°C (71°F)	117 mm (4.6 inches)	74%	very high
August Weather	19°C (67°F)	121 mm (4.8 inches)	73%	very high
September Weather	16°C (61°F)	83 mm (3.3 inches)	78%	high
October Weather	8°C (47°F)	109 mm (4.3 inches)	84%	moderate
November Weather	0°C (32°F)	50 mm (2.0 inches)	89%	moderate
December Weather	-5°C (23°F)	52 mm (2.1 inches)	87%	low