Oshawa
May
Weather in Oshawa for May 2025
Your guide to Oshawa weather in May - trends and predictions
In general, the average temperature in Oshawa at the beginning of May is 11.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.1 °C by the end of May.
With an average of 4 rainy days, Oshawa experiences minimal rainfall in May, ensuring that most days remain pleasantly dry.
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27
Dry days
4
Rainy days
0
Snow days
17°/7°
Temperatures
17 km/h
Avg max wind
76 %
Avg humidity
Oshawa in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  10° | 2  10° | 3 11° | 4 11° | |||
| 5 11° | 6  15° | 7  14° | 8 18° | 9 12° | 10  15° | 11 15° |
| 12 16° | 13  17° | 14  14° | 15 17° | 16 18° | 17 14° | 18 15° |
| 19 18° | 20 17° | 21 20° | 22 19° | 23 18° | 24 17° | 25 15° |
| 26 18° | 27 18° | 28 18° | 29 18° | 30 19° | 31 21° |
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Temperatures trend during May in Oshawa
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 | 10° /5° | 2.5 mm | 3 | |
| 2 May | Patchy rain possible | 10° /5° | 0.4 mm | 3 | |
| 3 May | Heavy rain at times | 11° /6° | 3.4 mm | 3 | |
| 4 May | Patchy rain possible | 11° /6° | 2.5 mm | 3 | |
| 5 May | Patchy rain possible | 11° /6° | 1.5 mm | 3 | |
| 6 May | Partly cloudy | 15° /6° | 0 mm | 4 | |
| 7 May | Moderate rain at times | 14° /7° | 6.4 mm | 3 | |
| 8 May | Partly cloudy | 18° /9° | 0.4 mm | 5 | |
| 9 May | Partly cloudy | 12° /8° | 1.2 mm | 4 | |
| 10 May | Sunny | 15° /6° | 0.2 mm | 4 | |
| 11 May | Partly cloudy | 15° /7° | 0.2 mm | 4 | |
| 12 May | Partly cloudy | 16° /9° | 0.2 mm | 5 | |
| 13 May | Cloudy | 17° /10° | 6.6 mm | 4 | |
| 14 May | Overcast | 14° /9° | 13.3 mm | 3 | |
| 15 May | Sunny | 17° /7° | 0.1 mm | 5 | |
| 16 May | Overcast | 18° /9° | 0.1 mm | 4 | |
| 17 May | Sunny | 14° /7° | 0 mm | 4 | |
| 18 May | Sunny | 15° /6° | 0.1 mm | 4 | |
| 19 May | Patchy rain possible | 18° /9° | 2.2 mm | 4 | |
| 20 May | Moderate or heavy rain shower | 17° /11° | 16.4 mm | 4 | |
| 21 May | Partly cloudy | 20° /11° | 0.2 mm | 5 | |
| 22 May | Cloudy | 19° /11° | 1 mm | 5 | |
| 23 May | Sunny | 18° /10° | 0 mm | 5 | |
| 24 May | Moderate or heavy rain shower | 17° /10° | 2.9 mm | 5 | |
| 25 May | Sunny | 15° /6° | 3.3 mm | 5 | |
| 26 May | Sunny | 18° /9° | 0 mm | 5 | |
| 27 May | Sunny | 18° /11° | 3 mm | 5 | |
| 28 May | Partly cloudy | 18° /10° | 1.6 mm | 5 | |
| 29 May | Sunny | 18° /11° | 0 mm | 6 | |
| 30 May | Sunny | 19° /10° | 0 mm | 6 | |
| 31 May | Sunny | 21° /11° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Oshawa 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 Oshawa forecast closer to your planned date for the most up-to-date weather information.
Oshawa in May - FAQ
What are the expected maximum and minimum temperatures in Oshawa 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 Oshawa during May?
Significant rainfall exceeding 123.6 mm is expected in Oshawa during May, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Oshawa during May?
The average wind speed in Oshawa during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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