Weather in Reston in August
Reston, United States averages a high of 29.4°C (84.9°F) and low of 20.1°C (68.2°F) in August, with 11 rain days and 10.8 hours of daily sunshine. Travel score: 83.3/100 (Excellent). The best time to visit Reston is September.
High
29°C85°F
Low
20°C68°F
🌧️
11
rain days
☀️
10.8
hrs/day sunshine
💧
71%
humidity
83— Excellent
August in Reston is hot and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Reston?
How much does it rain in Reston in August?
Reston receives an average of 97.5mm of rainfall across 11 rainy days in August. The annual total is 1098.5mm.
What should I pack for Reston in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (11 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to United States in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31