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Canada weather

Weather in Waterloo for May 2027

Your guide to Waterloo weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Waterloo at the beginning of May is 13.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.7 °C by the end of May.

    • Rain 🌧️

  • Waterloo in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 128.4 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
20
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Waterloo Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Heavy rain at times
11°
2
Moderate rain at times
11°
3
Moderate rain at times
13°
4
Patchy rain possible
15°
5
Patchy rain possible
14°
6
Cloudy
16°
7
Moderate or heavy rain shower
16°
8
Cloudy
16°
9
Moderate or heavy rain shower
16°
10
Partly cloudy
16°
11
Overcast
15°
12
Patchy rain possible
19°
13
Overcast
17°
14
Overcast
15°
15
Sunny
20°
16
Overcast
21°
17
Sunny
19°
18
Overcast
20°
19
Overcast
22°
20
Heavy rain at times
18°
21
Sunny
18°
22
Overcast
17°
23
Overcast
15°
24
Patchy rain possible
17°
25
Sunny
19°
26
Sunny
21°
27
Overcast
20°
28
Sunny
18°
29
Sunny
19°
30
Sunny
20°
31
Sunny
21°

Temperatures trend during May in Waterloo

See the weather trend as well as the moving average line

May weather in Waterloo day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Heavy rain at times
Heavy rain at times
 11° /3° 15.3 mm 4
2 May Moderate rain at times
Moderate rain at times
 11° /3° 1.9 mm 4
3 May Moderate rain at times
Moderate rain at times
 13° /3° 2.1 mm 4
4 May Patchy rain possible
Patchy rain possible
 15° /6° 2.2 mm 4
5 May Patchy rain possible
Patchy rain possible
 14° /7° 0.3 mm 4
6 May Cloudy
Cloudy
 16° /5° 9.8 mm 5
7 May Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /5° 2.4 mm 5
8 May Cloudy
Cloudy
 16° /6° 0.3 mm 4
9 May Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /4° 3.1 mm 4
10 May Partly cloudy
Partly cloudy
 16° /4° 0.5 mm 6
11 May Overcast
Overcast
 15° /4° 0.7 mm 6
12 May Patchy rain possible
Patchy rain possible
 19° /5° 0.6 mm 6
13 May Overcast
Overcast
 17° /9° 6.5 mm 4
14 May Overcast
Overcast
 15° /7° 4.6 mm 3
15 May Sunny
Sunny
 20° /7° 1.4 mm 6
16 May Overcast
Overcast
 21° /9° 3.1 mm 5
17 May Sunny
Sunny
 19° /8° 5.2 mm 6
18 May Overcast
Overcast
 20° /8° 0.6 mm 5
19 May Overcast
Overcast
 22° /9° 4 mm 6
20 May Heavy rain at times
Heavy rain at times
 18° /6° 6 mm 6
21 May Sunny
Sunny
 18° /10° 21 mm 4
22 May Overcast
Overcast
 17° /8° 8.4 mm 6
23 May Overcast
Overcast
 15° /7° 8.6 mm 4
24 May Patchy rain possible
Patchy rain possible
 17° /7° 0.7 mm 4
25 May Sunny
Sunny
 19° /6° 0.7 mm 6
26 May Sunny
Sunny
 21° /7° 0 mm 7
27 May Overcast
Overcast
 20° /10° 0.8 mm 6
28 May Sunny
Sunny
 18° /9° 0.6 mm 6
29 May Sunny
Sunny
 19° /8° 9.4 mm 6
30 May Sunny
Sunny
 20° /8° 0 mm 7
31 May Sunny
Sunny
 21° /8° 2.9 mm 6
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Important Notice
Our weather forecast for Waterloo in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Waterloo forecast closer to your planned date for the most up-to-date weather information.
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Waterloo in May - FAQ

What are the expected maximum and minimum temperatures in Waterloo during May?

Enjoy moderate daytime temperatures of up to 17° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Waterloo during May?

Significant rainfall exceeding 128.4 mm is expected in Waterloo during May, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Waterloo during May?

The average wind speed in Waterloo during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Waterloo

Explore the daily rainfall trends and prepare for Waterloos May weather 💧
Typically, Waterloo has 20 rainy days in May with a total of 128.4 mm of rainfall.

UV exposure in Waterloo during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Waterloo?

Get accurate weather forecasts for Waterloo, located at latitude 43.467 and longitude -80.516. Stay updated with localized weather information tailored for Waterloo.

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