October Weather in Sines, Portugal

Last updated: August 27, 2025

In Sines, Portugal, the average temperature in October hovers around 18°C (65°F), with a minimum of 9°C (48°F) and a maximum reaching 32°C (90°F). Expect about 45 mm (1.8 in) of precipitation spread over 4 days, contributing to an average humidity level of 75%. Enjoy the mild temperatures while staying prepared for occasional rainfall!

October Temperature in Sines

In October in Sines, the average temperature is 18°C (65°F), with maximums reaching 32°C (90°F) and minimums dropping as low as 9°C (48°F). This makes Sines an ideal destination for travelers seeking pleasant weather and the opportunity to enjoy outdoor activities during this time.

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

The chart illustrates October temperature patterns in Sines, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sines, October typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 9°C (48°F).

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

October Precipitation in Sines

In Sines in October, the total precipitation amount is 45 mm (1.8 in) over the course of 4 days.

October Precipitation Trends in Sines

The chart displays monthly precipitation patterns in Sines, 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 Sines, October typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 4 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 Sines

In Sines in October, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

October Average Humidity in Sines

This chart illustrates the average monthly humidity levels in Sines, 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 Sines is approximately 75%, 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 Sines

In Sines 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 Sines, you can refer to this Hourly UV Index in Sines.

Maximum UV Index Levels in Sines for October

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

Data source: Sines 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 Sines Compares to Other Months

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

This table compares monthly weather conditions in Sines, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	31 mm (1.2 inches)	80%	moderate
February Weather	13°C (55°F)	55 mm (2.2 inches)	73%	moderate
March Weather	14°C (57°F)	82 mm (3.2 inches)	71%	high
April Weather	15°C (59°F)	70 mm (2.7 inches)	69%	very high
May Weather	18°C (65°F)	27 mm (1.1 inches)	69%	very high
June Weather	19°C (67°F)	9 mm (0.4 inches)	67%	extreme
July Weather	21°C (70°F)	3 mm (0.1 inches)	69%	very high
August Weather	21°C (71°F)	2 mm (0.1 inches)	68%	very high
September Weather	21°C (70°F)	13 mm (0.5 inches)	71%	very high
October Weather	18°C (65°F)	45 mm (1.8 inches)	75%	high
November Weather	15°C (59°F)	62 mm (2.4 inches)	78%	moderate
December Weather	13°C (55°F)	52 mm (2.0 inches)	81%	moderate