Regional Municipality of Waterloo
May
Weather in Regional Municipality of Waterloo for May 2025
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 21 °C by the end of May.
Regional Municipality of Waterloo sees moderate rainfall in May, averaging 6 rainy days.
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25
Dry days
6
Rainy days
0
Snow days
21°/6°
Temperatures
17 km/h
Avg max wind
72 %
Avg humidity
Regional Municipality of Waterloo in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2  11° | 3 13° | 4  14° | |||
| 5 15° | 6  17° | 7 18° | 8 20° | 9 15° | 10  17° | 11  16° |
| 12  19° | 13 21° | 14 15° | 15 20° | 16 19° | 17 17° | 18 20° |
| 19 23° | 20 19° | 21 23° | 22 21° | 23 22° | 24 19° | 25 19° |
| 26 21° | 27 20° | 28 20° | 29 21° | 30 22° | 31 24° |
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Temperatures trend during May in Regional Municipality of Waterloo
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Heavy rain at times | 13° /4° | 2.6 mm | 4 | |
| 2 May | Moderate rain at times | 11° /3° | 3 mm | 3 | |
| 3 May | Moderate rain at times | 13° /5° | 3.5 mm | 3 | |
| 4 May | Patchy rain possible | 14° /8° | 0.6 mm | 4 | |
| 5 May | Patchy rain possible | 15° /6° | 0.3 mm | 4 | |
| 6 May | Cloudy | 17° /4° | 0 mm | 5 | |
| 7 May | Moderate or heavy rain shower | 18° /6° | 4.5 mm | 4 | |
| 8 May | Cloudy | 20° /9° | 0.4 mm | 5 | |
| 9 May | Moderate or heavy rain shower | 15° /6° | 3.6 mm | 4 | |
| 10 May | Sunny | 17° /6° | 1 mm | 5 | |
| 11 May | Overcast | 16° /8° | 1.4 mm | 4 | |
| 12 May | Partly cloudy | 19° /8° | 0.3 mm | 5 | |
| 13 May | Overcast | 21° /10° | 5.9 mm | 5 | |
| 14 May | Overcast | 15° /7° | 9.2 mm | 4 | |
| 15 May | Sunny | 20° /7° | 0 mm | 5 | |
| 16 May | Overcast | 19° /8° | 0.2 mm | 4 | |
| 17 May | Sunny | 17° /6° | 0.3 mm | 5 | |
| 18 May | Sunny | 20° /6° | 0 mm | 5 | |
| 19 May | Overcast | 23° /8° | 3.2 mm | 6 | |
| 20 May | Heavy rain at times | 19° /10° | 11.8 mm | 5 | |
| 21 May | Sunny | 23° /12° | 3.6 mm | 6 | |
| 22 May | Overcast | 21° /12° | 1 mm | 5 | |
| 23 May | Overcast | 22° /9° | 0 mm | 6 | |
| 24 May | Patchy rain possible | 19° /8° | 0.1 mm | 5 | |
| 25 May | Sunny | 19° /5° | 1.3 mm | 5 | |
| 26 May | Sunny | 21° /6° | 0 mm | 6 | |
| 27 May | Sunny | 20° /10° | 1.6 mm | 5 | |
| 28 May | Sunny | 20° /9° | 1.3 mm | 5 | |
| 29 May | Sunny | 21° /8° | 0 mm | 5 | |
| 30 May | Sunny | 22° /8° | 0 mm | 6 | |
| 31 May | Sunny | 24° /9° | 0 mm | 6 | |
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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.
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 21° and cooler nights around 6°. 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 113.4 mm is expected in Regional Municipality of Waterloo during May, occurring over more than 6 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 17 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 ☀️
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