Weather in Waterloo in August
Waterloo, United States averages a high of 26.7°C (80.1°F) and low of 17.7°C (63.9°F) in August, with 9 rain days and 11.2 hours of daily sunshine. Travel score: 83.2/100 (Excellent). The best time to visit Waterloo is September.
High
27°C80°F
Low
18°C64°F
🌧️
9
rain days
☀️
11.2
hrs/day sunshine
💧
74%
humidity
83— Excellent
August in Waterloo is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Waterloo?
How much does it rain in Waterloo in August?
Waterloo receives an average of 97mm of rainfall across 9 rainy days in August. The annual total is 904.3mm.
What should I pack for Waterloo in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting United States in August?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31