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Canada weather

Weather in St. John's for May 2026

Your guide to St. John's weather in May - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, St. John's usually enjoys a light touch of snow in May.

    • Temperatures

  • In general, the average temperature in St. John's at the beginning of May is 5.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 10.3 °C by the end of May.

    • Rain 🌧️

  • St. John's in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 89.3 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
18
Rainy days
Average snowy days
2
Snow days
Average temperatures
7°/3°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
84 %
Avg humidity

St. John's Weather May

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

Temperatures trend during May in St. John's

See the weather trend as well as the moving average line

May weather in St. John's day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Overcast
Overcast
 3° /1° 1.4 mm 0.1 cm
2 May Overcast
Overcast
 4° /1° 0.5 mm 0 cm
3 May Overcast
Overcast
 5° /1° 0.9 mm 0 cm
4 May Patchy rain possible
Patchy rain possible
 6° /2° 2.9 mm 0 cm
5 May Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /0° 5.3 mm 0 cm
6 May Heavy rain at times
Heavy rain at times
 7° /0° 1 mm 0 cm
7 May Overcast
Overcast
 9° /2° 0.6 mm 0 cm
8 May Heavy rain at times
Heavy rain at times
 8° /4° 1.7 mm 0 cm
9 May Patchy rain possible
Patchy rain possible
 7° /2° 4.2 mm 0 cm
10 May Partly cloudy
Partly cloudy
 6° /1° 0.1 mm 0 cm
11 May Partly cloudy
Partly cloudy
 7° /1° 6.1 mm 0 cm
12 May Partly cloudy
Partly cloudy
 6° /1° 6 mm 0.1 cm
13 May Partly cloudy
Partly cloudy
 7° /1° 0 mm 0 cm
14 May Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /1° 7.3 mm 0 cm
15 May Light drizzle
Light drizzle
 8° /3° 1.2 mm 0 cm
16 May Patchy rain possible
Patchy rain possible
 9° /4° 0.7 mm 0 cm
17 May Patchy rain possible
Patchy rain possible
 8° /2° 2.2 mm 0 cm
18 May Partly cloudy
Partly cloudy
 7° /2° 4.8 mm 0 cm
19 May Overcast
Overcast
 7° /2° 0 mm 0 cm
20 May Partly cloudy
Partly cloudy
 7° /3° 1.2 mm 0 cm
21 May Patchy rain possible
Patchy rain possible
 10° /4° 0.1 mm 0 cm
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /2° 7.8 mm 0 cm
23 May Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /1° 7.4 mm 0 cm
24 May Cloudy
Cloudy
 7° /2° 10.9 mm 0 cm
25 May Fog
Fog
 10° /4° 2.8 mm 0 cm
26 May Patchy rain possible
Patchy rain possible
 7° /3° 9 mm 0 cm
27 May Overcast
Overcast
 7° /2° 0 mm 0 cm
28 May Patchy rain possible
Patchy rain possible
 12° /4° 0.4 mm 0 cm
29 May Patchy rain possible
Patchy rain possible
 11° /5° 0.9 mm 0 cm
30 May Overcast
Overcast
 13° /5° 0.6 mm 0 cm
31 May Overcast
Overcast
 12° /6° 0.9 mm 0 cm
Next
Important Notice
Our weather forecast for St. John's 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 St. John's forecast closer to your planned date for the most up-to-date weather information.
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St. John's in May - FAQ

What are the expected maximum and minimum temperatures in St. John's during May?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 3°.
How much rainfall should be expected in St. John's during May?
Moderate rainfall is anticipated in St. John's during May, with a total of 89.3 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
Will it snow in St. John's in May 2026?
St. John's experiences an average snowfall of 0.303333 cm during May, occurring over 2 days.
What are the typical wind conditions in St. John's during May?
The average wind speed in St. John's during May is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

St. John's snow forecast May 2026

Track daily snowfall levels and discover St. John's’s snowy potential this May ❄️

May rainfall patterns in St. John's

Explore the daily rainfall trends and prepare for St. John'ss May weather 💧

Quick links

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Location coordinates Where is St. John's?

Get accurate weather forecasts for St. John's, located at latitude 47.565 and longitude -52.709. Stay updated with localized weather information tailored for St. John's.

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