Cool
Average highs are around 20°C, so pack for cooler days.
Weather Guide
St. John's, Newfoundland and Labrador, Canada Average Monthly Weather
Weather score20Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 9°C, sunshine averages 4.1h per day, and rainfall totals about 1493mm. Sea temperatures average 6°C across the year.
Annual weather
Annual averages
Temp
9°C
Rain
1493mm
Annual total
Sun
4.1h
Sea
6°C
Weather score
20
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 119mm, so some wet days are possible.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare St. John's, Newfoundland and Labrador, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August20°C average high
August is one of St. John's' hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August119mm average rain
August sits near St. John's' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsMay to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6 hours average sun
August is brighter than St. John's' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August14°C average sea
August is one of St. John's' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
August36 weather score
August scores above St. John's' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels in St. John's, Newfoundland and Labrador, Canada
Marriott
Sheraton Hotel NewfoundlandSt. John's, Newfoundland and Labrador, Canada
Delta Hotels St. John's Conference CentreSt. John's, Newfoundland and Labrador, Canada
Courtyard St. John's NewfoundlandSt. John's, Newfoundland and Labrador, Canada
Fairfield Inn & Suites St. John's NewfoundlandSt. John's, Newfoundland and Labrador, Canada