Weather in Grand Island in August
Grand Island, United States averages a high of 29.2°C (84.6°F) and low of 19.1°C (66.4°F) in August, with 8 rain days and 11.7 hours of daily sunshine. Travel score: 86.3/100 (Excellent). The best time to visit Grand Island is September.
High
29°C85°F
Low
19°C66°F
🌧️
8
rain days
☀️
11.7
hrs/day sunshine
💧
67%
humidity
86— Excellent
August in Grand Island is hot and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Grand Island?
How much does it rain in Grand Island in August?
Grand Island receives an average of 64.2mm of rainfall across 8 rainy days in August. The annual total is 687.4mm.
What should I pack for Grand Island in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (8 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