St. John's Weather in May
In St. John's, May brings low daytime temperatures around 10°C (50°F), with nights cooling to 3°C (37°F). Expect quite a bit of rainfall this month.
Rainfall in St. John's in May
Past climate data indicates that roughly 15 days will see rain, totalling around 81 mm (3.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in St. John's in May
Daytime temperatures in St. John's reach 10°C (50°F) in May, dropping to 3°C (37°F) at night. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in St. John's in May
The area enjoys a moderate level of sunlight, with around 176 hours. It's a good balance between sunny and cloudy days.May in St. John's can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our St. John's's climate page.
St. John's Temperature in May
Min Temperature
3°C (37°F)
Max Temperature
10°C (50°F)
Chance of Rain
51%
Precipitation
81 mm (3.2 in)
Rainy days
15 days
Sunshine
176 hours
Percentage Sunshine
37%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in St. John's typically stay consistent throughout May, with daily highs averaging around 10°C (50°F). Nights are cold, with lows typically ranging from 0°C (32°F) to 4°C (39°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for St. John's in May
Browse day-by-day weather records for St. John's spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
St. John's historical weather extremes in May
Based on weather observations in St. John's between 1976 and 2025, these are the recorded extremes during May.
- The warmest day in May was on May 29, 2020, with a maximum of 26°C (79°F).
- St. John's experienced its chilliest May day on May 10, 1993, reaching only -2°C (28°F).
- The lowest overnight temperature recorded in May was -6°C (21°F) (May 12, 1993).
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in St. John's in May
We recommend to layer up for chilly conditions in St. John's in May. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in St. John's in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our St. John's's climate page.
See the full St. John's climate overview or explore weather in Canada.
