New Brunswick weather in September 2025

Q: How hot is it in New Brunswick in September?

Daytime temperatures usually reach 19°C in Fredericton, New Brunswick in September, falling to 7°C at night.

Q: How sunny is it in New Brunswick in September?

There are normally 6 hours of bright sunshine each day in Fredericton, New Brunswick in September - that's 44% of daylight hours.

Q: Does it rain in New Brunswick in September?

There are usually 11 days with some rain in Fredericton, New Brunswick in September and the average monthly rainfall is 92mm.

Q: What is the chance of a hurricane in New Brunswick in September?

On average less than 1 day in September in Fredericton, New Brunswick is likely to be affected by the passage of one or more tropical storms.

Expect 66°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in New Brunswick in September. Check more long-term weather averages for New Brunswick in September before you book your next holiday to New Brunswick in 2025/2026.

66
66°F max day temperature
6
6 hours of sunshine per day
11
11 days with some rainfall
45
45°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.6
3.6 inches of monthly rainfall
5
5 (Moderate) UV index

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Destination

The September weather guide for New Brunswick (Fredericton) 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.

All New Brunswick destinations

Metric (°C) | Imperial (°F)

More about Canada

How hot is it in New Brunswick in September?

Daytime temperatures usually reach 66°F in Fredericton, New Brunswick in September, falling to 45°F at night.

How sunny is it in New Brunswick in September?

There are normally 6 hours of bright sunshine each day in Fredericton, New Brunswick in September - that's 44% of daylight hours.

Does it rain in New Brunswick in September?

There are usually 11 days with some rain in Fredericton, New Brunswick in September and the average monthly rainfall is 3.6 inches.

What is the chance of a hurricane in New Brunswick in September?

On average less than 1 day in September in Fredericton, New Brunswick is likely to be affected by the passage of one or more tropical storms.

New Brunswick September sunrise & sunset times

Browse the sunrise and sunset times for New Brunswick in September 2025. Select a month to view New Brunswick sunrise and sunset times for the next 12 months. The New Brunswick sunrise and sunset times shown below are for Fredericton.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	05:48	19:04
Monday, 15th September 2025	06:05	18:37
Tuesday, 30th September 2025	06:24	18:08

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New Brunswick - quick facts
Flight time^✝	12 hours
Time difference	UK -4 hours
Language(s)	English, French
Currency	Canadian Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Tourism New Brunswick