Saint John
May
Weather in Saint John for May 2027
Your guide to Saint John weather in May - trends and predictions
In general, the average temperature in Saint John at the beginning of May is 11.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.3 °C by the end of May.
Saint John experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 148.9 mm.
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Temperatures
Rain 🌧️
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9
Dry days
22
Rainy days
0
Snow days
13°/6°
Temperatures
19 km/h
Avg max wind
77 %
Avg humidity
Saint John Weather May
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Temperatures trend during May in Saint John
See the weather trend as well as the moving average line
May weather in Saint John day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Overcast | 11° /4° | 18.5 mm | 2 | |
| 2 May | Overcast | 11° /4° | 2.4 mm | 4 | |
| 3 May |  Patchy rain possible | 10° /3° | 8.6 mm | 2 | |
| 4 May | Patchy rain possible | 11° /4° | 4.4 mm | 4 | |
| 5 May | Overcast | 13° /4° | 0.6 mm | 4 | |
| 6 May | Overcast | 11° /5° | 1.3 mm | 2 | |
| 7 May |  Partly cloudy | 14° /6° | 13.5 mm | 3 | |
| 8 May | Patchy rain possible | 13° /4° | 1.5 mm | 4 | |
| 9 May | Overcast | 11° /3° | 0.6 mm | 4 | |
| 10 May | Overcast | 11° /3° | 13.2 mm | 3 | |
| 11 May |  Cloudy | 14° /5° | 0.9 mm | 4 | |
| 12 May | Partly cloudy | 13° /4° | 0 mm | 5 | |
| 13 May | Partly cloudy | 15° /5° | 1.4 mm | 5 | |
| 14 May | Overcast | 14° /4° | 1 mm | 3 | |
| 15 May | Cloudy | 16° /6° | 0.1 mm | 4 | |
| 16 May |  Moderate rain at times | 15° /7° | 2.1 mm | 5 | |
| 17 May | Moderate rain at times | 15° /5° | 5.5 mm | 4 | |
| 18 May | Overcast | 14° /5° | 4.7 mm | 5 | |
| 19 May | Overcast | 13° /6° | 5 mm | 3 | |
| 20 May | Cloudy | 15° /7° | 1.1 mm | 3 | |
| 21 May | Moderate or heavy rain shower | 13° /7° | 17.9 mm | 3 | |
| 22 May |  Sunny | 15° /5° | 0.5 mm | 5 | |
| 23 May | Sunny | 13° /4° | 19.6 mm | 5 | |
| 24 May | Sunny | 14° /6° | 1.1 mm | 4 | |
| 25 May | Patchy rain possible | 13° /6° | 13.9 mm | 3 | |
| 26 May | Cloudy | 15° /7° | 0.3 mm | 4 | |
| 27 May | Partly cloudy | 18° /5° | 3.8 mm | 4 | |
| 28 May | Partly cloudy | 17° /7° | 4.2 mm | 4 | |
| 29 May | Sunny | 15° /7° | 0.7 mm | 4 | |
| 30 May | Partly cloudy | 14° /6° | 0.1 mm | 4 | |
| 31 May | Sunny | 15° /5° | 9.2 mm | 5 | |
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Important Notice
Our weather forecast for Saint John 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 Saint John forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint John in May - FAQ
What are the expected maximum and minimum temperatures in Saint John during May?
During May, expect a variety of temperatures with highs around 13° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint John during May?
Significant rainfall exceeding 148.9 mm is expected in Saint John during May, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint John during May?
The average wind speed in Saint John during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Saint John
Explore the daily rainfall trends and prepare for Saint Johns May weather 💧
Typically, Saint John has 22 rainy days in May with a total of 148.9 mm of rainfall.
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