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Newfoundland & Labrador weather in September 2025
Expect 16°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Newfoundland & Labrador in September. Check more long-term weather averages for Newfoundland & Labrador in September before you book your next holiday to Newfoundland & Labrador in 2025/2026.
- 1616°C max day temperature
- 5 hours of sunshine per day
- 1515 days with some rainfall
- 88°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 117117 mm of monthly rainfall
- 55 (Moderate) UV index
- 1212°C sea temperature
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Recommended for Newfoundland & Labrador
The September weather guide for Newfoundland & Labrador (St John's) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Newfoundland & Labrador destinations
Below are average maximum temperatures at popular countries, regions and places in Newfoundland & Labrador in September. Select a holiday destination to see more weather parameters.
All Newfoundland & Labrador destinations
Metric (°C / mm) | Imperial (°F / inches)
More about Canada
How warm is it in Newfoundland & Labrador in September?
Daytime temperatures usually reach 16°C in St John's, Newfoundland & Labrador in September, falling to 8°C at night.
How sunny is it in Newfoundland & Labrador in September?
There are normally 5 hours of bright sunshine each day in St John's, Newfoundland & Labrador in September - that's 38% of daylight hours.
How warm is the sea around Newfoundland & Labrador in September?
The average sea temperature around St John's, Newfoundland & Labrador in September is 12°C.
Does it rain in Newfoundland & Labrador in September?
There are usually 15 days with some rain in St John's, Newfoundland & Labrador in September and the average monthly rainfall is 117mm.
What is the chance of a hurricane in Newfoundland & Labrador in September?
On average less than 1 day in September in St John's, Newfoundland & Labrador is likely to be affected by the passage of one or more tropical storms.
Newfoundland & Labrador September sunrise & sunset times
Browse the sunrise and sunset times for Newfoundland & Labrador in September 2025. Select a month to view Newfoundland & Labrador sunrise and sunset times for the next 12 months. The Newfoundland & Labrador sunrise and sunset times shown below are for St John's.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:20 | 18:41 |
Monday, 15th September 2025 | 05:39 | 18:12 |
Tuesday, 30th September 2025 | 05:59 | 17:42 |
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