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Weather in Alliston for May 2025

Your guide to Alliston weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Alliston at the beginning of May is 16.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.7 °C by the end of May.

  • Rain 🌧️

  • Alliston in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 67.9 mm.

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Average dry days
15
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/8°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Alliston in May average weather

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Temperatures trend during May in Alliston

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 Light rain
Light rain
20° /7° 2.8 mm 4
2 May Overcast
Overcast
12° /5° 0 mm 3
3 May Patchy rain possible
Patchy rain possible
18° /8° 0.3 mm 4
4 May Fog
Fog
17° /12° 0.4 mm 4
5 May Light drizzle
Light drizzle
15° /8° 0.9 mm 4
6 May Sunny
Sunny
15° /5° 0 mm 5
7 May Overcast
Overcast
19° /6° 3 mm 4
8 May Patchy rain possible
Patchy rain possible
19° /7° 3.9 mm 4
9 May Light rain shower
Light rain shower
12° /7° 0.9 mm 3
10 May Patchy rain possible
Patchy rain possible
13° /6° 0.5 mm 3
11 May Light rain shower
Light rain shower
12° /7° 5.2 mm 3
12 May Light rain shower
Light rain shower
13° /6° 2 mm 3
13 May Light rain shower
Light rain shower
20° /10° 7.4 mm 5
14 May Patchy light drizzle
Patchy light drizzle
14° /8° 1.4 mm 3
15 May Patchy rain possible
Patchy rain possible
18° /7° 0.1 mm 4
16 May Patchy rain possible
Patchy rain possible
19° /9° 0.4 mm 4
17 May Light rain shower
Light rain shower
19° /11° 2.1 mm 4
18 May Patchy rain possible
Patchy rain possible
23° /11° 0 mm 5
19 May Light rain shower
Light rain shower
24° /12° 2.8 mm 5
20 May Moderate or heavy rain shower
Moderate or heavy rain shower
14° /9° 23.8 mm 3
21 May Sunny
Sunny
17° /6° 0.2 mm 5
22 May Partly cloudy
Partly cloudy
22° /10° 1.5 mm 6
23 May Partly cloudy
Partly cloudy
21° /9° 0.2 mm 6
24 May Moderate rain at times
Moderate rain at times
16° /7° 1 mm 5
25 May Sunny
Sunny
16° /5° 1.8 mm 5
26 May Sunny
Sunny
20° /5° 0 mm 5
27 May Sunny
Sunny
21° /10° 2.3 mm 5
28 May Cloudy
Cloudy
17° /9° 3.1 mm 4
29 May Sunny
Sunny
20° /7° 0 mm 6
30 May Partly cloudy
Partly cloudy
21° /8° 0 mm 6
31 May Partly cloudy
Partly cloudy
23° /10° 0 mm 6
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Important Notice
Our weather forecast for Alliston 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 Alliston forecast closer to your planned date for the most up-to-date weather information.

Alliston in May - FAQ

What are the expected maximum and minimum temperatures in Alliston during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Alliston during May?
Moderate rainfall is anticipated in Alliston during May, with a total of 67.9 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Alliston during May?
The average wind speed in Alliston during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Alliston

Explore the daily rainfall trends and prepare for Allistons May weather 💧

UV exposure in Alliston during May

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

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Location coordinates Where is Alliston?

Get accurate weather forecasts for Alliston, located at latitude 44.15 and longitude -79.866. Stay updated with localized weather information tailored for Alliston.

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