Regional Municipality of Waterloo (Kitchener)
May
Weather in Regional Municipality of Waterloo for May 2026
Your guide to Regional Municipality of Waterloo weather in May - trends and predictions
In general, the average temperature in Regional Municipality of Waterloo at the beginning of May is 14.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.4 °C by the end of May.
Regional Municipality of Waterloo experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 137.1 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
17°/7°
Temperatures
20 km/h
Avg max wind
74 %
Avg humidity
Regional Municipality of Waterloo Weather May
Move between months or click on a day
Temperatures trend during May in Regional Municipality of Waterloo
See the weather trend as well as the moving average line
May weather in Regional Municipality of Waterloo day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Heavy rain at times | 12° /4° | 20.4 mm | 3 | |
| 2 May |  Moderate rain at times | 12° /4° | 2 mm | 3 | |
| 3 May | Moderate rain at times | 13° /4° | 2.3 mm | 3 | |
| 4 May |  Patchy rain possible | 14° /6° | 2.8 mm | 3 | |
| 5 May | Patchy rain possible | 15° /8° | 0.2 mm | 4 | |
| 6 May |  Cloudy | 17° /6° | 12.2 mm | 4 | |
| 7 May | Moderate or heavy rain shower | 18° /6° | 3 mm | 4 | |
| 8 May | Cloudy | 18° /7° | 0.2 mm | 4 | |
| 9 May | Moderate or heavy rain shower | 16° /4° | 2.4 mm | 4 | |
| 10 May |  Sunny | 18° /5° | 0.6 mm | 5 | |
| 11 May |  Overcast | 16° /6° | 1 mm | 4 | |
| 12 May |  Partly cloudy | 22° /7° | 0.2 mm | 5 | |
| 13 May | Overcast | 19° /11° | 5.1 mm | 5 | |
| 14 May | Overcast | 17° /9° | 6.1 mm | 4 | |
| 15 May | Sunny | 21° /8° | 1.8 mm | 5 | |
| 16 May | Overcast | 22° /10° | 3.9 mm | 5 | |
| 17 May | Sunny | 17° /7° | 6.7 mm | 4 | |
| 18 May | Sunny | 17° /6° | 0.8 mm | 4 | |
| 19 May | Overcast | 21° /7° | 2.1 mm | 5 | |
| 20 May | Heavy rain at times | 18° /7° | 7.9 mm | 4 | |
| 21 May | Sunny | 18° /10° | 21 mm | 4 | |
| 22 May | Overcast | 18° /10° | 11.2 mm | 4 | |
| 23 May | Overcast | 17° /7° | 3.7 mm | 4 | |
| 24 May | Patchy rain possible | 17° /7° | 0.1 mm | 4 | |
| 25 May | Sunny | 18° /5° | 0.9 mm | 4 | |
| 26 May | Sunny | 20° /6° | 0 mm | 5 | |
| 27 May | Sunny | 20° /9° | 1.1 mm | 5 | |
| 28 May | Sunny | 18° /10° | 0.8 mm | 5 | |
| 29 May | Sunny | 19° /8° | 12.6 mm | 4 | |
| 30 May | Sunny | 21° /9° | 0 mm | 5 | |
| 31 May | Sunny | 20° /8° | 3.8 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Regional Municipality of 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 Regional Municipality of Waterloo forecast closer to your planned date for the most up-to-date weather information.
Change Month
Regional Municipality of Waterloo in May - FAQ
What are the expected maximum and minimum temperatures in Regional Municipality of 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 Regional Municipality of Waterloo during May?
Significant rainfall exceeding 137.1 mm is expected in Regional Municipality of Waterloo during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Regional Municipality of Waterloo during May?
The average wind speed in Regional Municipality of Waterloo during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Regional Municipality of Waterloo
Explore the daily rainfall trends and prepare for Regional Municipality of Waterloos May weather 💧
UV exposure in Regional Municipality of Waterloo during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Regional Municipality of Waterloo
Select a location for an accurate weather forecast
More Locations Quick links
More Regional Municipality of Waterloo weather pages
You are here
Where is Regional Municipality of Waterloo?Get accurate weather forecasts for Regional Municipality of Waterloo, located at latitude 43.425 and longitude -80.511. Stay updated with localized weather information tailored for Regional Municipality of Waterloo.
Found a mistake?
We appreciate your attention to details. Tell us here.