The highest day temperature in July 2025 was 84°F. The lowest night temperature was 52°F. The average values for day and night temperatures during July were 73.1°F и 62.6°F respectivly.

The average sea surface temperature in July 2025 for Sillamäe was 65.8°F. The maximum and minimum values were 59.2°F and 72.4°F respectively.

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

Precipitation total in July for Sillamäe is 2.5 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 8.5 mph. It makes July the most windless month of the year for Sillamäe.

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 Sillamäe in July is 10.9 hours.