If you plan to visit St. John's in May, the weather is typically alright, with an average high temperature of +48°F during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 13 rainy days in the month and around 83 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+48°F
Avg. max. temperature
+25°F
Min.
+81°F
Max.
83 mm
Total precipitation
83%
Avg. humidity
5 m/s
Avg. wind
1 ☀️
Sunny Days
13 ⛅️
Cloudy
13 🌦
Rainy
Our opinion: St. John's has OK weather in May.
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Average temperature in St. John's in May
Here are the expected maximum, average and minimum temperatures in St. John's for May based on the historical data.
Last Year
Historical Data
Going from a maximum of +66°F during the day to a minimum of +32°F during the night, the temperature in May averages around +50°F.
The average maximum temperature goes up 53% by the end of the month, compared with the beginning of the month, from +39°F to +57°F.
Is St. John's warm or cold in May?
St. John's is typically chill in May.
Maximum temperatures go up compared to the previous month from +41°F to +48°F. The minimum temperature also goes up from +32°F to +37°F.
Pack a jumper and a jacket as there will be cooler temperatures.
Take a look at how May is compared to other months in St. John's:
Climate in St. John's in May
St. John's weather looks like this, on average, in May and the surrounding months.
April
May
June
Avg. temperature
+41°F
+48°F
+55°F
Min. temperature
+12°F
+25°F
+32°F
Max. temperature
+72°F
+81°F
+84°F
Rainfall
126 mm
83 mm
118 mm
Wind
5 m/s
5 m/s
4 m/s
Humidity
82%
83%
84%
Air pressure
1013 HPa
1015 HPa
1013 HPa
Sunny days
1
1
1
Cloudy days
12
13
13
Rainy days
6
13
15
Snowy days
11
3
0
May often has better weather than April.It’s getting warmer as May arrives. The average maximum temperature goes up from +41°F to +48°F during the day.As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 126 mm to 83 mm.Humidity rises from 82% to 83%.The average wind speed doesn’t change much during May, staying around 5 m/s.The amount of sunny days stay about the same, averaging 1 sunny days during the month.
Wind speed in St. John's in May based on historical data.
Last Year
Historical Data
The average wind speed is 7 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in St. John's is gradually decreasing during May, going from 8 m/s to 4 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in St. John's based on historical data.
Last Year
Historical Data
Typically, there is a 81% chance of rain on an average day in May, with total rainfall of approximately 941 mm. The maximum amount of rainfall per day is around 127 mm, which is considered heavy rain.May is a pretty wet month with over 25 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how May is compared with other months in the amount of precipitation, total mm:
St. John's wettest month is April, where a typical day has a 20% chance of precipitation and 126 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 37 mm of rainfall per day.
Snow
Amount of snow in mm during May in St. John's based on historical data.
Last Year
Historical Data
Typically, there is a 0% chance of snow on an average day in May, with a total monthly snowfall of approximately 0 mm.
Here’s how May is compared with other months in the amount of snow, total mm:
How was the weather last May in St. John's?
This is the weather in St. John's in May 2024:
1 May
☁️
+40°F
2 May
☁️
+40°F
3 May
🌫️
+41°F
4 May
🌫️
+39°F
5 May
🌫️
+37°F
6 May
☁️
+41°F
7 May
☁️
+51°F
8 May
☁️
+52°F
9 May
🌫️
+45°F
10 May
☁️
+49°F
11 May
☁️
+54°F
12 May
☀️
+46°F
13 May
☀️
+56°F
14 May
🌫️
+52°F
15 May
☀️
+52°F
16 May
🌧️
+54°F
17 May
☁️
+56°F
18 May
🌧️
+51°F
19 May
🌧️
+59°F
20 May
☁️
+58°F
21 May
☁️
+63°F
22 May
🌧️
+55°F
23 May
🌫️
+38°F
24 May
☀️
+49°F
25 May
☀️
+49°F
26 May
🌫️
+47°F
27 May
☁️
+49°F
28 May
☁️
+66°F
29 May
🌧️
+50°F
30 May
☁️
+49°F
31 May
☀️
+57°F
In May 2024 St. John's had 6 sunny days, 13 cloudy days, and 5 rainy days. The average maximum temperature was +50°F, with an absolute maximum of +66°F and a minimum of +37°F. The average humidity was 81%, with a maximum of 100% and a minimum of 27%. The average wind speed was 7 m/s, with a maximum of 17 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change Over the Years
This is how St. John's climate has changed over the last 43 years.
The climate in St. John's in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+44°F) and the highest in 2022 (+52°F). The driest year was 1989 with only 563 mm of rainfall, and the wettest year was 2023 with 7230 mm.
FAQ
Frequently asked questions about the weather in St. John's in May:
Is May a good time to visit St. John's?
It’s always a good time to visit St. John's, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in St. John's in May?
Not really, May is not the best time to sunbathe, unless you visit a local solarium.
Is St. John's rainy in May?
St. John's is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in St. John's in May?
Usually, it’s not very sunny in St. John's in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in St. John's, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
