St. John's (Newfoundland and Labrador) in september: average Weather, Temperature and Climate
Weather in St. John's (Newfoundland and Labrador) in september 2025
The weather in Saint-Jean de Terre-Neuve in the month of september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
56°F
Clear/Sunny
32% of time
26%
18%
15%
Weather at 12pm
59°F
Clear/Sunny
35% of time
26%
19%
12%
Weather at 6pm
58°F
Clear/Sunny
35% of time
27%
15%
15%
Weather at 3am
56°F
34%
21%
19%
16%
Evolution of daily average temperature and precipitation in St. John's (Newfoundland and Labrador) in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in St. John's (Newfoundland and Labrador) in september.
The climate of St. John's (Newfoundland and Labrador) in september is good
The climate in september in Saint-Jean de Terre-Neuve is wet (with 5.3in of rainfall over 6 days). The weather is better from the previous month since in august it receives an average of 4.4in of rainfall over 6 days.
The climate is fairly fresh in that area this month, but it is tolerable by dressing cosy. The thermometer averaged maximum of 61°F. The minimum is 56°F. Thus, the mean temperature average on this month of september in Saint-Jean de Terre-Neuve is 58°F. These temperatures are far removed from those records observed in Saint-Jean de Terre-Neuve in the month of september with a maximum record of 72°F in 2020 and a minimum record of 41°F in 2015. You can expect to have about 7 days with temperatures above 65°F, or 23% of time.
In september in Saint-Jean de Terre-Neuve, the days on average last 12:34. The sun rises at 05:09 and sets at 17:43.
With good weather conditions, the month of september is a good time to go in that area in Canada.
Seasonal average climate and temperature of St. John's (Newfoundland and Labrador) in september
Check below seasonal norms These statistics are generated from the weather statements of the past years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 58°F | ||||
| Highest temperature | 61°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 72°F (2020) | ||||
| Lowest record temperature | 41°F (2015) | ||||
| Number of days at +65°F | 7 day(s) (23%) | ||||
| Sea temperature | |||||
| Average sea temperature | 54°F | ||||
| Lowest sea temperature | 48°F | ||||
| Highest sea temperature | 60°F | ||||
| Wind | |||||
| Wind speed | 29km/h | ||||
| Wind temperature | 52°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.3in | ||||
| Number of days with rainfall | 6 day(s) (19%) | ||||
| Record daily rainfall | 4.1in (2010) | ||||
| Snowfall | 0cm | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 9.11km | ||||
| Cloud cover | 47% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:09 | ||||
| Time of sunset | 17:43 | ||||
| Length of day | 12:34 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in St. John's (Newfoundland and Labrador) in september 2024:
59°F to 68°F
63°F to 67°F
59°F to 65°F
54°F to 59°F
54°F to 61°F
58°F to 70°F
58°F to 63°F
61°F to 67°F
65°F to 67°F
58°F to 65°F
58°F to 65°F
54°F to 61°F
52°F to 65°F
54°F to 58°F
50°F to 52°F
49°F to 65°F
59°F to 67°F
61°F to 65°F
56°F to 58°F
52°F to 54°F
50°F to 52°F
50°F to 52°F
49°F to 54°F
52°F to 54°F
52°F to 54°F
52°F to 54°F
49°F to 54°F
52°F to 56°F
54°F to 56°F
52°F to 54°F
Map: other cities in Canada in september
Cities near St. John's (Newfoundland and Labrador):
| Bonavista in september | tolerable weather |
| Twillingate in september | tolerable weather |
| Corner Brook in september | tolerable weather |
| Gros Morne National Park in september | tolerable weather |
| Sydney in september | good weather |
| Cape Breton Island in september | good weather |
| Charlottetown in september | good weather |
| Happy Valley-Goose Bay in september | tolerable weather |
| Hebron (Prince Edward Island) in september | good weather |
| Halifax in september | good weather |
| Moncton in september | good weather |
| Fundy National Park in september | good weather |
Click over cities on the map for information about the weather in september.
St. John's (Newfoundland and Labrador)
perfect weather
good
tolerable
bad
very bad
Weather data for St. John's (Newfoundland and Labrador) in september:
Weather data for St. John's (Newfoundland and Labrador) for september are derived from an average of the weather forecast since 2009 in St. John's (Newfoundland and Labrador). There is a margin of error and these forecasts are to be considered as general information only. The weather in St. John's (Newfoundland and Labrador) can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to St. John's (Newfoundland and Labrador).