Sea Temperature in Saint John in September

Complete information on the sea temperature range in the Atlantic Ocean in Saint John in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Saint John. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Saint John in September

11°C

MINIMUN

13.5°C

AVERAGE

16°C

MAXIMUM

Historical Data of Water Temperature in September in Saint John

Water Temperature Chart for Atlantic Ocean in Saint John in September

Sea Temperature Table in Saint John in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	15°C	13°C	13°C	13.5°C
Sep 2	15°C	13°C	13°C	13.5°C
Sep 3	15°C	13°C	13°C	13.5°C
Sep 4	15°C	13°C	13°C	13.5°C
Sep 5	14°C	13°C	12°C	13.0°C
Sep 6	14°C	13°C	12°C	13.0°C
Sep 7	14°C	12°C	13°C	12.8°C
Sep 8	14°C	13°C	13°C	13.3°C
Sep 9	14°C	13°C	13°C	13.3°C
Sep 10	14°C	13°C	13°C	13.3°C
Sep 11	14°C	13°C	13°C	13.3°C
Sep 12	15°C	13°C	13°C	13.5°C
Sep 13	14°C	14°C	13°C	13.5°C
Sep 14	14°C	14°C	13°C	13.5°C
Sep 15	14°C	14°C	13°C	13.5°C
Sep 16	14°C	13°C	13°C	13.3°C
Sep 17	13°C	14°C	14°C	13.8°C
Sep 18	14°C	13°C	14°C	13.8°C
Sep 19	14°C	13°C	13°C	13.3°C
Sep 20	14°C	13°C	13°C	13.3°C
Sep 21	14°C	13°C	13°C	13.3°C
Sep 22	15°C	13°C	13°C	13.3°C
Sep 23	14°C	13°C	13°C	13.3°C
Sep 24	14°C	13°C	14°C	13.3°C
Sep 25	14°C	13°C	14°C	13.3°C
Sep 26	15°C	13°C	14°C	13.5°C
Sep 27	15°C	12°C	14°C	13.3°C
Sep 28	14°C	13°C	14°C	13.3°C
Sep 29	14°C	13°C	14°C	13.3°C

Saint John Climate and Swimming Opportunities in September

16°C

Average Day Air Temperature

9°C

Average Night Air Temperature

78 mm

Precipitation Amount per Month

16 days

Number of Rainy Days

13 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

18 km/h

Average Wind Speed

88%

Average
humidity

Saint John lies within the New Brunswick in Canada. The average daytime temperature in Saint John in September is 16°C (61°F), while the nighttime average is 9°C (49°F). There are typically 16 rainy days during the month, with a total precipitation of 78 mm (3.1 inches). The daylight duration in September in Saint John is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 18 km/h (11 mph), and the humidity level is around 88%.

The water temperature in Saint John in September ranges from 12°C to 13°C (54°F to 55°F). At the beginning of the month, the average temperature is around 13°C (55°F), shifting to 13°C (55°F) by mid-September and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Saint John for September is 13°C (55°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Saint John

What is the sea temperature in Saint John in September?

The water temperature in the Atlantic Ocean in Saint John in September ranges from 12°C to 13°C (54°F to 55°F).

Is it possible to swim in the Atlantic Ocean in Saint John in September?

The average sea temperature in Saint John in September is 13°C (55°F), and the air temperature is 16°C (61°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.