The highest day temperature in July 2025 was 90°F. The lowest night temperature was 64°F. The average values for day and night temperatures during July were 78.9°F и 66.4°F respectivly.

The average sea surface temperature in July 2025 for Sintra was 64.7°F. The maximum and minimum values were 61.0°F and 67.6°F respectively.

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

Precipitation total in July for Sintra is 0.1 in. It makes july the least rainy month of the year.

The average wind speed in July is 12.9 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 July is 12.4 hours.