Constructed from our DriSmart fabric, our performance shirts are lightweight, breathable, and provide exceptional moisture wicking.
Guide to Jamestown weather in August. The average maximum daytime temperature in Jamestown in August is a warm 28Â°C (82Â°F) with low heat & humidity. The average night-time temperature is usually a cool 13Â°C (55Â°F). There are usually 10 hours of bright sunshine each day, which represents 70% of the 14 hours of daylight.
The highest monthly average temperature in Jamestown for July is 70 degrees. The lowest monthly average temperature in Jamestown for January is 11 degrees. The most monthly precipitation in Jamestown occurs in June with 4.4 inches. The air quality index in Jamestown is 29% better than the national average. The pollution index in Jamestown is 85% better than the national average.