October Weather in Arcos, Portugal

Last updated: August 27, 2025

In October, the average temperature in Arcos, Portugal is a mild 17°C (63°F). Expect lows around 5°C (42°F) and highs reaching up to 35°C (95°F). With an average humidity of 79%, the air can feel quite damp. Prepare for potential showers, as 94 mm (3.7 in) of precipitation is anticipated over about 8 days.

October Temperature in Arcos

In October in Arcos, the average temperature is 17°C (63°F). Maximum temperatures can reach 35°C (95°F), while the minimum can drop as low as 5°C (42°F). This makes it a great time for travelers to experience a range of activities, from outdoor adventures to cozy indoor attractions.

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

The chart illustrates October temperature patterns in Arcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcos, October typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (42°F).

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

October Precipitation in Arcos

In Arcos in October, the precipitation amount is 94 mm (3.7 in) over the course of 8 days.

October Precipitation Trends in Arcos

The chart displays monthly precipitation patterns in Arcos, 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 Arcos, October typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Arcos

In Arcos in October, humidity is 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

October Average Humidity in Arcos

This chart illustrates the average monthly humidity levels in Arcos, 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 Arcos is approximately 79%, 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 Arcos

In Arcos in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Arcos, you can refer to this Hourly UV Index in Arcos.

Maximum UV Index Levels in Arcos for October

The chart shows the monthly maximum UV Index (UVI) for Arcos 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 Arcos typically reaches 6, which falls under the high exposure category.

Data source: Arcos 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 Arcos Compares to Other Months

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

This table compares monthly weather conditions in Arcos, 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 (49°F)	70 mm (2.7 inches)	87%	moderate
February Weather	11°C (53°F)	101 mm (4.0 inches)	81%	moderate
March Weather	12°C (55°F)	121 mm (4.8 inches)	78%	high
April Weather	14°C (58°F)	121 mm (4.8 inches)	79%	very high
May Weather	17°C (64°F)	60 mm (2.4 inches)	78%	very high
June Weather	19°C (66°F)	35 mm (1.4 inches)	71%	extreme
July Weather	21°C (70°F)	11 mm (0.4 inches)	63%	very high
August Weather	21°C (70°F)	12 mm (0.5 inches)	64%	very high
September Weather	20°C (69°F)	37 mm (1.4 inches)	71%	very high
October Weather	17°C (63°F)	94 mm (3.7 inches)	79%	high
November Weather	13°C (55°F)	133 mm (5.3 inches)	86%	moderate
December Weather	11°C (52°F)	135 mm (5.3 inches)	87%	low