The highest day temperature in October 2025 was 80°F. The lowest night temperature was 61°F. The average values for day and night temperatures during October were 74.5°F и 65.3°F respectivly.

The average sea surface temperature in October 2025 for Sintra was 64.3°F. The maximum and minimum values were 61.4°F and 67.0°F respectively.

Most of the days in October are sunny but you can also expect cloudy and gloomy days.

Precipitation total in October for Sintra is 2.0 in.

The average wind speed in October is 10.4 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sintra in October is 7.7 hours.