September 2026 in Saint John, NB

Daily History + Events + Weather-Style Almanac

Typical September conditions in Saint John:
🍁 Early fall colours begin appearing late in the month
🌅 Sunrise: ~6:45 AM by month’s end
🌇 Sunset: ~7:30 PM late September
🌡️ Typical daytime highs: 15–22°C early month, cooler later
🌊 Warm ocean influence often keeps evenings milder than inland New Brunswick
🚢 Cruise season becomes highly active during autumn harbour visits.

Week 1

Tue September 1

• Start of meteorological autumn
• Cooler mornings begin returning

Wed September 2

• Late summer tourism season continues
• Harbourfront still busy on warm afternoons

Thu September 3

• Back-to-school preparation week across the region

Fri September 4

• Labour Day weekend atmosphere arrives

Sat September 5

• Fall concert season begins at the Imperial Theatre
• “Country Boys Tribute” scheduled at the theatre.

Sun September 6

• Last major summer holiday weekend day
• Parks and beaches remain active if weather is warm

Mon September 7 – Labour Day

• Traditional unofficial end of summer
• Family gatherings and final camping weekends common

Week 2

Tue September 8

• Schools reopen across New Brunswick
• Morning traffic patterns return

Wed September 9

• Cooler Bay of Fundy air more noticeable overnight

Thu September 10

• Uptown restaurant and arts activity increases after summer tourism crowds ease

Fri September 11

• Fall event calendars begin filling quickly.

Sat September 12

• Farmers markets enter harvest season

Sun September 13

• Popular walking weather along Harbour Passage

Week 3

Mon September 14

• Peak cruise season approaches in Saint John harbour

Tue September 15

• History note:
  Saint John remains one of Canada’s oldest incorporated cities and an important Atlantic gateway.

Wed September 16

• Opening performances of Come From Away at the Imperial Theatre.

Thu September 17

• Fall evenings noticeably cooler after sunset

Fri September 18

• Uptown entertainment district busy for theatre and dining visitors

Sat September 19

• Multiple performances of Come From Away scheduled.

• Early autumn colour beginning inland

Sun September 20

• Final listed Come From Away performance day.

Week 4

Mon September 21

• Trees begin gradual colour change around parks and river valleys

Tue September 22

• Last full day of astronomical summer

Wed September 23 – Autumn Equinox

• Equal daylight and darkness
• True beginning of fall season

Thu September 24

• Foggy harbour mornings become more frequent

Fri September 25

• Fall festival and concert season active across the city

Sat September 26

• Saint John Comedy Classic scheduled at the Imperial Theatre.

Sun September 27

• Cool evening temperatures becoming common

Final Days of September

Mon September 28

• Peak apple and harvest season across southern New Brunswick

Tue September 29

• Cruise ships and autumn tourism continue strongly

Wed September 30 – National Day for Truth and Reconciliation

• Reflection and educational events observed across Canada
• Orange Shirt Day commemorations may occur locally

September 2026 Quick Almanac

🍁 Transition from summer to autumn
🚢 Peak fall cruise ship season
🎭 Theatre and concert season returns strongly
🌊 Cool foggy harbour mornings increase
🍎 Harvest and farmers market season peaks
🌅 Earlier sunsets become noticeable each week

For official event calendars and updates:

• Discover Saint John Events

City of Saint John Events Calendar

Imperial Theatre