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Weather in Guelph for May 2026

Your guide to Guelph weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Guelph during May is quite rare, with fewer than 2 snowy days on average.
    According to Guelph snow forecast for May 2026, 1 snowy day is expected at the beginning of May at Friday, 8 May.

    • Temperatures

  • The forecast for the first days of May 2026 in Guelph predicts temperatures to be around 10 °C, close to the historical average.

  • In general, the average temperature in Guelph at the beginning of May is 10.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19 °C by the end of May.

    • Rain 🌧️

  • Guelph experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 156.3 mm.

    • More

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

Average dry days
9
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Guelph Weather May

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

Temperatures trend during May in Guelph

See the weather trend as well as the moving average line

May weather in Guelph day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Patchy rain possible
Patchy rain possible
 8° /-2° 1.3 mm 0 cm
2 May Patchy rain possible
Patchy rain possible
 7° /-2° 0.4 mm 0 cm
3 May Patchy rain possible
Patchy rain possible
 12° /-2° 0.2 mm 0 cm
4 May Patchy rain possible
Patchy rain possible
 11° /5° 0.1 mm 0 cm
5 May Overcast
Overcast
 9° /1° 0 mm 0 cm
6 May Partly cloudy
Partly cloudy
 15° /2° 0 mm 0 cm
7 May Patchy rain possible
Patchy rain possible
 10° /2° 1.8 mm 0 cm
8 May Patchy rain possible
Patchy rain possible
 8° /0° 0.3 mm 0 cm
9 May Patchy rain possible
Patchy rain possible
 6° /0° 0.5 mm 0 cm
10 May Sunny
Sunny
 9° /-2° 0 mm 0 cm
11 May Patchy rain possible
Patchy rain possible
 10° /-2° 0.2 mm 0 cm
12 May Partly cloudy
Partly cloudy
 11° /0° 0 mm 0 cm
13 May Overcast
Overcast
 18° /11° 7.6 mm 0 cm
14 May Overcast
Overcast
 16° /9° 8.6 mm 0 cm
15 May Sunny
Sunny
 20° /8° 2 mm 0 cm
16 May Overcast
Overcast
 22° /9° 4.9 mm 0 cm
17 May Sunny
Sunny
 17° /7° 7.2 mm 0 cm
18 May Sunny
Sunny
 17° /6° 0.8 mm 0 cm
19 May Overcast
Overcast
 20° /6° 1.3 mm 0 cm
20 May Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /7° 8.5 mm 0 cm
21 May Sunny
Sunny
 18° /10° 19.5 mm 0 cm
22 May Cloudy
Cloudy
 17° /10° 13 mm 0 cm
23 May Overcast
Overcast
 17° /8° 9.7 mm 0 cm
24 May Patchy rain possible
Patchy rain possible
 16° /7° 0.1 mm 0 cm
25 May Sunny
Sunny
 17° /5° 0.5 mm 0 cm
26 May Sunny
Sunny
 20° /5° 0 mm 0 cm
27 May Sunny
Sunny
 20° /9° 1.1 mm 0 cm
28 May Sunny
Sunny
 18° /10° 2.6 mm 0 cm
29 May Sunny
Sunny
 18° /8° 12.7 mm 0 cm
30 May Sunny
Sunny
 20° /8° 0 mm 0 cm
31 May Sunny
Sunny
 20° /8° 4.4 mm 0 cm
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Important Notice
Our weather forecast for Guelph 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 Guelph forecast closer to your planned date for the most up-to-date weather information.
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Guelph in May - FAQ

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

Significant rainfall exceeding 156.3 mm is expected in Guelph during May, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Guelph during May?

The average wind speed in Guelph during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

Guelph snow forecast May 2026

Track daily snowfall levels and discover Guelph’s snowy potential this May ❄️

May rainfall patterns in Guelph

Explore the daily rainfall trends and prepare for Guelphs May weather 💧
Typically, Guelph has 22 rainy days in May with a total of 156.3 mm of rainfall.

UV exposure in Guelph during May

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

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Location coordinates Where is Guelph?

Get accurate weather forecasts for Guelph, located at latitude 43.546 and longitude -80.256. Stay updated with localized weather information tailored for Guelph.

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