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Weather in St. John's for May 2025

Your guide to St. John's weather in May - trends and predictions
  • In general, the average temperature in St. John's at the beginning of May is 4.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 9.4 °C by the end of May.

  • St. John's sees moderate rainfall in May, averaging 9 rainy days.

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Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
8°/2°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
86 %
Avg humidity

St. John's in May average weather

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Temperatures trend during May in St. John's

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 Overcast
Overcast
4° /1° 0.5 mm 1
2 May Overcast
Overcast
4° /1° 0.5 mm 2
3 May Overcast
Overcast
3° /1° 1.4 mm 1
4 May Patchy rain possible
Patchy rain possible
3° /1° 0.9 mm 1
5 May Moderate or heavy rain shower
Moderate or heavy rain shower
3° /1° 7.9 mm 2
6 May Heavy rain at times
Heavy rain at times
6° /0° 1.5 mm 2
7 May Overcast
Overcast
7° /2° 0.9 mm 2
8 May Heavy rain at times
Heavy rain at times
6° /2° 2.2 mm 2
9 May Patchy rain possible
Patchy rain possible
6° /2° 4.3 mm 2
10 May Partly cloudy
Partly cloudy
6° /1° 0 mm 2
11 May Partly cloudy
Partly cloudy
6° /1° 0 mm 2
12 May Partly cloudy
Partly cloudy
7° /1° 7.8 mm 3
13 May Partly cloudy
Partly cloudy
9° /2° 0 mm 3
14 May Moderate or heavy rain shower
Moderate or heavy rain shower
6° /2° 11 mm 2
15 May Overcast
Overcast
8° /3° 1 mm 3
16 May Patchy rain possible
Patchy rain possible
10° /4° 1.1 mm 3
17 May Patchy rain possible
Patchy rain possible
8° /3° 3.4 mm 3
18 May Patchy rain possible
Patchy rain possible
7° /2° 7.2 mm 3
19 May Sunny
Sunny
9° /2° 0 mm 3
20 May Partly cloudy
Partly cloudy
9° /3° 0 mm 4
21 May Overcast
Overcast
12° /5° 0 mm 3
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
10° /2° 11.5 mm 3
23 May Moderate or heavy rain shower
Moderate or heavy rain shower
4° /1° 11.1 mm 2
24 May Cloudy
Cloudy
7° /1° 14.6 mm 2
25 May Overcast
Overcast
10° /4° 2.9 mm 3
26 May Moderate or heavy rain shower
Moderate or heavy rain shower
8° /3° 13 mm 2
27 May Overcast
Overcast
6° /3° 0 mm 2
28 May Patchy rain possible
Patchy rain possible
12° /3° 0.4 mm 4
29 May Patchy rain possible
Patchy rain possible
8° /3° 1.3 mm 2
30 May Overcast
Overcast
12° /4° 0.2 mm 3
31 May Overcast
Overcast
10° /5° 1.3 mm 3
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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.

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 8° and colder nights, dipping below 2°.
How much rainfall should be expected in St. John's during May?
Significant rainfall exceeding 208.4 mm is expected in St. John's during May, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in St. John's during May?
St. John's experiences an average snowfall of 0 cm during May, occurring over 0 days, which may interest winter sports enthusiasts.
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.

May rainfall patterns in St. John's

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

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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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