Simcoe County (Alliston)
May
Weather in Simcoe County for May 2027
Your guide to Simcoe County weather in May - trends and predictions
In general, the average temperature in Simcoe County at the beginning of May is 13.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.7 °C by the end of May.
The climate of Simcoe County in May is notably wet, with an average of 12 rainy days, and a total of 113.5 mm of precipitation.
Is May a good time to visit Simcoe County? check out the best time to travel to Simcoe County page.
✨ Is May a good time to visit Simcoe County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
19
Dry days
12
Rainy days
0
Snow days
16°/6°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
Simcoe County Weather May
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Temperatures trend during May in Simcoe County
See the weather trend as well as the moving average line
May weather in Simcoe County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Moderate rain | 12° /2° | 13.2 mm | 4 | |
| 2 May |  Overcast | 9° /3° | 0.1 mm | 4 | |
| 3 May |  Patchy rain possible | 13° /3° | 1.5 mm | 4 | |
| 4 May |  Fog | 18° /6° | 0.8 mm | 5 | |
| 5 May |  Light drizzle | 15° /7° | 1 mm | 4 | |
| 6 May | Light rain | 14° /6° | 5.2 mm | 5 | |
| 7 May | Light rain | 13° /3° | 7.1 mm | 5 | |
| 8 May | Patchy rain possible | 14° /3° | 1.4 mm | 5 | |
| 9 May | Light rain shower | 14° /4° | 1.7 mm | 5 | |
| 10 May | Patchy rain possible | 12° /4° | 0.2 mm | 4 | |
| 11 May | Light rain shower | 12° /2° | 1.8 mm | 5 | |
| 12 May | Light rain shower | 17° /3° | 1.1 mm | 6 | |
| 13 May | Light rain | 17° /9° | 4.8 mm | 3 | |
| 14 May | Patchy light drizzle | 14° /8° | 1.3 mm | 3 | |
| 15 May | Patchy rain possible | 18° /8° | 0 mm | 6 | |
| 16 May | Light rain | 21° /10° | 4.6 mm | 6 | |
| 17 May | Light rain | 19° /10° | 9.4 mm | 6 | |
| 18 May | Patchy rain possible | 20° /10° | 0.5 mm | 5 | |
| 19 May | Light rain | 20° /11° | 3.1 mm | 5 | |
| 20 May | Light rain | 15° /4° | 7.9 mm | 6 | |
| 21 May | Light rain | 14° /6° | 7.5 mm | 4 | |
| 22 May | Moderate rain | 17° /8° | 10.2 mm | 6 | |
| 23 May | Moderate rain | 15° /8° | 16.9 mm | 5 | |
| 24 May | Patchy rain possible | 14° /7° | 1.2 mm | 4 | |
| 25 May | Patchy rain possible | 17° /6° | 1 mm | 5 | |
| 26 May | Mist | 21° /8° | 0 mm | 6 | |
| 27 May | Patchy rain possible | 20° /9° | 1.1 mm | 6 | |
| 28 May | Patchy rain possible | 17° /9° | 1.5 mm | 6 | |
| 29 May | Light rain | 17° /8° | 5.4 mm | 6 | |
| 30 May |  Sunny | 20° /7° | 0 mm | 7 | |
| 31 May | Patchy rain possible | 20° /8° | 2.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Simcoe County 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 Simcoe County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Simcoe County in May - FAQ
What are the expected maximum and minimum temperatures in Simcoe County during May?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Simcoe County during May?
Significant rainfall exceeding 113.5 mm is expected in Simcoe County during May, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Simcoe County during May?
The average wind speed in Simcoe County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Simcoe County
Explore the daily rainfall trends and prepare for Simcoe Countys May weather 💧
Typically, Simcoe County has 12 rainy days in May with a total of 113.5 mm of rainfall.
UV exposure in Simcoe County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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