Sea Temperature in Cornwall in October

Complete information on the sea temperature range in the Atlantic Ocean in Cornwall in October. Historical daily data. Climate details for October. Tips on swimming conditions and beach relaxation in Cornwall. 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 Cornwall in October

46°F

MINIMUN

55°F

AVERAGE

64°F

MAXIMUM

Historical Data of Water Temperature in October in Cornwall

Water Temperature Chart for Atlantic Ocean in Cornwall in October

Sea Temperature Table in Cornwall in October Over the Past Years

Day	2024	2023	2022	Average
Oct 1	63°C	59°C	57°C	60°C
Oct 2	63°C	59°C	57°C	60°C
Oct 3	61°C	59°C	57°C	60°C
Oct 4	61°C	61°C	59°C	60°C
Oct 5	61°C	61°C	59°C	60°C
Oct 6	61°C	61°C	59°C	60°C
Oct 7	61°C	59°C	59°C	60°C
Oct 8	61°C	59°C	59°C	60°C
Oct 9	61°C	59°C	55°C	59°C
Oct 10	59°C	61°C	54°C	58°C
Oct 11	59°C	57°C	57°C	59°C
Oct 12	59°C	55°C	57°C	58°C
Oct 13	59°C	55°C	55°C	57°C
Oct 14	57°C	55°C	55°C	57°C
Oct 15	57°C	55°C	55°C	56°C
Oct 16	59°C	55°C	55°C	57°C
Oct 17	57°C	55°C	55°C	56°C
Oct 18	57°C	55°C	55°C	56°C
Oct 19	59°C	55°C	55°C	56°C
Oct 20	59°C	54°C	54°C	55°C
Oct 21	57°C	54°C	54°C	55°C
Oct 22	57°C	54°C	54°C	55°C
Oct 23	57°C	54°C	52°C	54°C
Oct 24	57°C	54°C	52°C	54°C
Oct 25	57°C	54°C	52°C	55°C
Oct 26	57°C	52°C	52°C	54°C
Oct 27	57°C	52°C	52°C	54°C
Oct 28	55°C	52°C	52°C	53°C
Oct 29	55°C	52°C	52°C	53°C
Oct 30	54°C	52°C	55°C	53°C

Cornwall Climate and Swimming Opportunities in October

55°F

Average Day Air Temperature

45°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

18 days

Number of Rainy Days

10 hrs

Daylight
per Day

3 hrs

Sunshine
per Day

13 mph

Average Wind Speed

90%

Average
humidity

Cornwall lies within the Prince Edward Island in Canada. The average daytime temperature in Cornwall in October is 13°C (56°F), while the nighttime average is 7°C (45°F). There are typically 18 rainy days during the month, with a total precipitation of 99 mm (3.9 inches). The daylight duration in October in Cornwall is 10 hours, with an average of 3 hours of sunshine per day. The average wind speed in October is 21 km/h (13 mph), and the humidity level is around 90%.

The water temperature in Cornwall in October ranges from 11°C to 15°C (52°F to 59°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 14°C (57°F) by mid-October and reaching 12°C (54°F) in the last ten days. Overall, the average sea temperature in Cornwall for October is 14°C (57°F). The water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.

Sea Temperature in October in Nearby Cities

Frequently Asked Questions About Water Temperatures in October in Cornwall

What is the sea temperature in Cornwall in October?

The water temperature in the Atlantic Ocean in Cornwall in October ranges from 11°C to 15°C (52°F to 59°F).

Is it possible to swim in the Atlantic Ocean in Cornwall in October?

The average sea temperature in Cornwall in October is 14°C (57°F), and the air temperature is 13°C (56°F), so the water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.