Cape Breton County (Sydney)
May
Weather in Cape Breton County for May 2026
Your guide to Cape Breton County weather in May - trends and predictions
Wind Warning - See hour by hour.
So far, May 2026 in Cape Breton County is slightly warmer than the historical average by 1.8 °C.
The forecast for the upcoming days in Cape Breton County predicts a temperature of 12.6 °C, which is slightly above the historical average.
In general, the average temperature in Cape Breton County at the beginning of May is 10.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.6 °C by the end of May.
Cape Breton County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 91.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
11°/4°
Temperatures
20 km/h
Avg max wind
79 %
Avg humidity
Cape Breton County Weather May
Move between months or click on a day
Temperatures trend during May in Cape Breton County
See the weather trend as well as the moving average line
May weather in Cape Breton County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Overcast | 8° /2° | 2.6 mm | 2 | |
| 2 May |  Patchy rain possible | 9° /2° | 5.9 mm | 3 | |
| 3 May |  Moderate or heavy rain shower | 8° /2° | 6.6 mm | 3 | |
| 4 May | Moderate rain at times | 9° /3° | 5.4 mm | 2 | |
| 5 May |  Cloudy | 11° /3° | 1.2 mm | 4 | |
| 6 May |  Partly cloudy | 13° /3° | 0.6 mm | 4 | |
| 7 May | Overcast | 13° /4° | 4.1 mm | 3 | |
| 8 May |  Heavy rain at times | 12° /5° | 3.3 mm | 3 | |
| 9 May | Moderate rain at times | 9° /2° | 3.2 mm | 4 | |
| 10 May | Patchy rain possible | 14° /4° | 0.3 mm | 4.1 | |
| 11 May |  Moderate rain | 10° /7° | 14.7 mm | 5 | |
| 12 May | Patchy rain possible | 7° /3° | 3.7 mm | 0.6 | |
| 13 May |  Sunny | 11° /2° | 0 mm | 3 | |
| 14 May | Partly cloudy | 13° /3° | 0 mm | 3 | |
| 15 May | Patchy rain possible | 11° /4° | 0.4 mm | 2 | |
| 16 May | Patchy rain possible | 10° /6° | 2.7 mm | 2 | |
| 17 May | Patchy rain possible | 16° /5° | 0.1 mm | 3 | |
| 18 May | Sunny | 12° /4° | 0 mm | 3 | |
| 19 May | Patchy rain possible | 11° /6° | 0.4 mm | 2 | |
| 20 May | Partly cloudy | 18° /10° | 0 mm | 4 | |
| 21 May | Patchy rain possible | 18° /8° | 1.3 mm | 3 | |
| 22 May | Patchy rain possible | 14° /8° | 0.4 mm | 3 | |
| 23 May | Patchy rain possible | 12° /6° | 0.1 mm | 2 | |
| 24 May | Sunny | 11° /4° | 6.9 mm | 3 | |
| 25 May | Moderate or heavy rain shower | 11° /4° | 15.6 mm | 3 | |
| 26 May | Overcast | 9° /4° | 1.5 mm | 3 | |
| 27 May | Sunny | 16° /3° | 0.4 mm | 5 | |
| 28 May | Cloudy | 21° /7° | 2.4 mm | 5 | |
| 29 May | Overcast | 18° /8° | 2.2 mm | 5 | |
| 30 May | Partly cloudy | 18° /6° | 1.1 mm | 4 | |
| 31 May | Overcast | 16° /8° | 1.6 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Cape Breton 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 Cape Breton County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Cape Breton County in May - FAQ
What are the expected maximum and minimum temperatures in Cape Breton County during May?
Prepare for cooler days with highs just around 11° and colder nights, dipping below 4°.
How much rainfall should be expected in Cape Breton County during May?
Moderate rainfall is anticipated in Cape Breton County during May, with a total of 91.6 mm spread over approximately 22 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Cape Breton County during May?
The average wind speed in Cape Breton County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Cape Breton County
Explore the daily rainfall trends and prepare for Cape Breton Countys May weather 💧
Typically, Cape Breton County has 22 rainy days in May with a total of 91.6 mm of rainfall.
UV exposure in Cape Breton County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Cape Breton County
Select a location for an accurate weather forecast
More Locations Quick links
More Cape Breton County weather pages
You are here
Where is Cape Breton County?Get accurate weather forecasts for Cape Breton County, located at latitude 46.135 and longitude -60.183. Stay updated with localized weather information tailored for Cape Breton County.
Found a mistake?
We appreciate your attention to details. Tell us here.