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Weather in Saint John for May 2025

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 16.7 °C by the end of May.

  • With an average of 5 rainy days, Saint John experiences minimal rainfall in May.

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Average dry days
26
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/5°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Saint John in May average weather

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Temperatures trend during May in Saint John

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 Moderate or heavy rain shower
Moderate or heavy rain shower
10° /4° 19.2 mm 3
2 May Overcast
Overcast
12° /5° 0.3 mm 3
3 May Patchy rain possible
Patchy rain possible
8° /3° 0.3 mm 3
4 May Patchy rain possible
Patchy rain possible
9° /3° 1.2 mm 3
5 May Overcast
Overcast
13° /3° 0 mm 4
6 May Overcast
Overcast
13° /4° 1.4 mm 3
7 May Partly cloudy
Partly cloudy
16° /6° 0 mm 5
8 May Patchy rain possible
Patchy rain possible
13° /3° 1.5 mm 3
9 May Overcast
Overcast
11° /3° 0.7 mm 3
10 May Overcast
Overcast
13° /1° 0 mm 4
11 May Cloudy
Cloudy
14° /5° 0.1 mm 4
12 May Partly cloudy
Partly cloudy
14° /3° 0 mm 4
13 May Moderate rain at times
Moderate rain at times
15° /5° 1.6 mm 4
14 May Overcast
Overcast
11° /4° 1.5 mm 3
15 May Cloudy
Cloudy
17° /5° 0.1 mm 4
16 May Moderate rain at times
Moderate rain at times
15° /7° 4.2 mm 4
17 May Moderate rain at times
Moderate rain at times
15° /5° 2.5 mm 4
18 May Partly cloudy
Partly cloudy
14° /4° 0 mm 4
19 May Overcast
Overcast
12° /6° 2.7 mm 3
20 May Cloudy
Cloudy
15° /7° 0.3 mm 4
21 May Moderate or heavy rain shower
Moderate or heavy rain shower
14° /9° 26.8 mm 3
22 May Sunny
Sunny
15° /7° 0.9 mm 4
23 May Sunny
Sunny
15° /5° 2.7 mm 5
24 May Sunny
Sunny
15° /7° 0.2 mm 4
25 May Patchy rain possible
Patchy rain possible
15° /6° 0.4 mm 4
26 May Patchy rain possible
Patchy rain possible
13° /6° 0.6 mm 3
27 May Partly cloudy
Partly cloudy
18° /6° 0 mm 5
28 May Partly cloudy
Partly cloudy
19° /9° 6.8 mm 5
29 May Sunny
Sunny
17° /8° 0.3 mm 5
30 May Partly cloudy
Partly cloudy
17° /6° 0 mm 5
31 May Sunny
Sunny
18° /6° 0 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.

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 15° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint John during May?
Significant rainfall exceeding 138.3 mm is expected in Saint John during May, occurring over more than 5 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 💧

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Location coordinates Where is Saint John?

Get accurate weather forecasts for Saint John, located at latitude 45.271 and longitude -66.056. Stay updated with localized weather information tailored for Saint John.

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