The highest day temperature in June 2025 was 91°F. The lowest night temperature was 58°F. The average values for day and night temperatures during June were 77.2°F и 64.2°F respectivly.

The average sea surface temperature in June 2025 for Sintra was 64.5°F. The maximum and minimum values were 61.8°F and 66.6°F respectively.

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

Precipitation total in June for Sintra is 0.4 in. It makes june one of the least rainy months of the year.

The average wind speed in June is 12.1 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 June is 11.5 hours.