Waterloo Weather in May
May in Waterloo sees daytime temperatures around 22°C (72°F) and lows of 10°C (50°F) at night. With around 113 mm (4.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Waterloo in May
Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 113 mm (4.4 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Waterloo in May
Expect highs of 22°C (72°F) in Waterloo in May, with nights dropping to around 10°C (50°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.For Waterloo itself, September generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Waterloo's climate page.
Waterloo Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
22°C (72°F)
Chance of Rain
40%
Precipitation
113 mm (4.4 in)
Rainy days
12 days
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Waterloo in May
For Waterloo in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Waterloo in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Waterloo's climate page.
See the full Waterloo climate overview or explore weather in the United States of America.
