The highest day temperature in August 2025 was 100°F. The lowest night temperature was 60°F. The average values for day and night temperatures during August were 85.4°F и 70.1°F respectivly.

The average sea surface temperature in August 2025 for Baltimore was 83.6°F. The maximum and minimum values were 79.6°F and 89.6°F respectively.

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in August for Baltimore is 1.7 in. It makes august the most rainy month of the year.

The average wind speed in August is 6.2 mph. It makes August one of the most windless months of the year for Baltimore.

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 Baltimore in August is 7.7 hours.