Waterloo
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Waterloo Weather in September

During September, Waterloo experiences high daytime temperatures of 24°C (75°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 81 mm (3.2 in) is typical.

Rainfall in Waterloo in September

Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 81 mm (3.2 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Waterloo in September

Weather in Waterloo is at its excellent in September. Highs reach 24°C (75°F), while nights settle around 11°C (52°F). This kind of day-to-night contrast is typical for this time of year. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Waterloo.

Waterloo Temperature in September

Min Temperature
11°C (52°F)
Max Temperature
24°C (75°F)
Chance of Rain
30%
Precipitation
81 mm (3.2 in)
Rainy days
9 days

Waterloo Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Waterloo - and find the best time to visit.

Best Places in the United States of America in September

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 September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Waterloo in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Waterloo in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    8/10
  • Outdoor sports
    9/10

Waterloo 3-Day Forecast

More climate data for Waterloo

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.