St. John's Weather in September
What's the weather like in St. John's (Newfoundland and Labrador) in September 2024?
The climate in St. John's during September can be summarized as mild and damp.
September is in the fall / autumn in St. John's and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 8°C (46°F) is normal.
| Daytime temperature | 15.7°C 60.2°F |
|---|---|
| Nightly temperature | 7.6°C 45.6°F |
| Average temperature | 11.6°C 52.9°F |
| Daily sunshine | 5.2 hrs |
| Avg rainfall | 118 mm 4.6 ins |
| Rainy days | 15 days |
| Sea temperature | 12.9°C 55.2°F |
| Humidity | 82% |
| Windspeed | 22kph 14 mph |
On average September is the 5th driest month of the year in St. John's with around 118mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
September temperatures in St. John's
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in St. John's in September 2024.
Other monthly averages
Best places to visit in September
St. John's weather stats
| Hottest month: | July | 20.1°C 68.2°F |
|---|---|---|
| Driest month: | July | 75mm 3ins |
| Sunniest month: | July | 7.7hrs |
| Coldest month: | February | -1.4°C 29.5°F |
| Wettest month: | January | 155mm 6.1ins |
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