Cool
Average highs are around 16°C, so pack for cooler days.
September verdict
St. John's, Newfoundland and Labrador, Canada in September
Weather score23Poor
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 118mm, so some wet days are possible.
September weather
Monthly averages
Temp
16°C
Rain
118mm
Sun
4.6h
Sea
12°C
Weather score
23
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 118mm, so some wet days are possible.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 12°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
September16°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September118mm average rain
September 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
September4.6 hours average sun
September sits close to St. John's' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September12°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
September23 weather score
September sits close to St. John's' yearly weather-score average, giving a typical overall read on the month.
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