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Saint John County (Saint John)
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Weather in Saint John County for May 2026

Your guide to Saint John County weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Saint John County at the beginning of May is 11.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 16 °C by the end of May.

    • Rain 🌧️

  • Saint John County in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 135.6 mm.

    • More

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Average dry days
11
Dry days
Average rainy days
20
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/5°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Saint John County Weather May

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

Temperatures trend during May in Saint John County

See the weather trend as well as the moving average line

May weather in Saint John County day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Overcast
Overcast
 11° /3° 12.8 mm 3
2 May Overcast
Overcast
 10° /5° 3 mm 3
3 May Patchy rain possible
Patchy rain possible
 10° /3° 0.2 mm 3
4 May Patchy rain possible
Patchy rain possible
 11° /5° 5.1 mm 3
5 May Overcast
Overcast
 13° /3° 0 mm 3
6 May Overcast
Overcast
 11° /4° 1 mm 3
7 May Partly cloudy
Partly cloudy
 14° /6° 10.2 mm 4
8 May Patchy rain possible
Patchy rain possible
 13° /4° 1 mm 3
9 May Overcast
Overcast
 10° /4° 0.5 mm 2
10 May Overcast
Overcast
 11° /2° 7.5 mm 3
11 May Cloudy
Cloudy
 13° /5° 1.3 mm 3
12 May Overcast
Overcast
 13° /4° 0 mm 3
13 May Moderate rain at times
Moderate rain at times
 15° /6° 1.1 mm 4
14 May Overcast
Overcast
 13° /4° 1 mm 3
15 May Cloudy
Cloudy
 16° /6° 0.1 mm 4
16 May Moderate rain at times
Moderate rain at times
 14° /7° 2.8 mm 3
17 May Moderate rain at times
Moderate rain at times
 13° /5° 6.5 mm 3
18 May Partly cloudy
Partly cloudy
 13° /5° 6.3 mm 4
19 May Overcast
Overcast
 11° /6° 5 mm 3
20 May Cloudy
Cloudy
 13° /6° 0.8 mm 3
21 May Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /7° 17.9 mm 3
22 May Sunny
Sunny
 14° /6° 0.6 mm 4
23 May Sunny
Sunny
 12° /4° 26.1 mm 4
24 May Sunny
Sunny
 13° /6° 1.4 mm 3
25 May Patchy rain possible
Patchy rain possible
 13° /6° 6.2 mm 3
26 May Cloudy
Cloudy
 13° /6° 0.4 mm 3
27 May Partly cloudy
Partly cloudy
 18° /4° 0 mm 5
28 May Partly cloudy
Partly cloudy
 19° /7° 4.5 mm 5
29 May Sunny
Sunny
 17° /8° 0.2 mm 4
30 May Partly cloudy
Partly cloudy
 16° /7° 0 mm 4
31 May Sunny
Sunny
 16° /7° 12.3 mm 4
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Important Notice
Our weather forecast for Saint John 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 Saint John County forecast closer to your planned date for the most up-to-date weather information.
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Saint John County in May - FAQ

What are the expected maximum and minimum temperatures in Saint John County during May?
During May, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint John County during May?
Significant rainfall exceeding 135.6 mm is expected in Saint John County during May, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint John County during May?
The average wind speed in Saint John County during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Saint John County

Explore the daily rainfall trends and prepare for Saint John Countys May weather 💧
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Location coordinates Where is Saint John County?

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

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