Portland in October
Find out everything about the water temperature in Portland in October. Average, minimum and maximum recorded temperatures as well as daily temperature in October for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in October
Minimum:
57.7 °F
Average:
60.7 °F
Maximum:
63.6 °F
Sea water temperature in Portland in October
In the city of Portland, the month of October is too cold for swimming. The minimum recorded temperature during this month was 57.7°F on October 31, 2018, with an average temperature being 60.7°F and a maximum temperature reaching 63.6°F on October 2, 2022.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Oct 1 | 62.5°F | 61.9°F | 63.2°F |
| Oct 2 | 62.4°F | 61.6°F | 62.9°F |
| Oct 3 | 62.3°F | 61.7°F | 62.7°F |
| Oct 4 | 62.2°F | 61.4°F | 63.2°F |
| Oct 5 | 61.9°F | 61.0°F | 63.0°F |
| Oct 6 | 61.8°F | 61.3°F | 62.8°F |
| Oct 7 | 61.6°F | 60.9°F | 63.0°F |
| Oct 8 | 61.6°F | 61.2°F | 62.6°F |
| Oct 9 | 61.5°F | 61.1°F | 63.4°F |
| Oct 10 | 61.3°F | 61.0°F | 62.6°F |
| Oct 11 | 61.3°F | 60.5°F | 62.3°F |
| Oct 12 | 61.1°F | 60.7°F | 62.1°F |
| Oct 13 | 60.9°F | 60.6°F | 61.9°F |
| Oct 14 | 60.9°F | 60.5°F | 62.9°F |
| Oct 15 | 60.7°F | 60.4°F | 62.5°F |
| Oct 16 | 60.6°F | 60.2°F | 62.3°F |
| Oct 17 | 60.5°F | 60.6°F | 62.0°F |
| Oct 18 | 60.5°F | 60.5°F | 61.7°F |
| Oct 19 | 60.4°F | 60.2°F | 61.3°F |
| Oct 20 | 60.4°F | 60.7°F | 61.4°F |
| Oct 21 | 60.3°F | 60.2°F | 61.5°F |
| Oct 22 | 60.1°F | 59.9°F | 61.3°F |
| Oct 23 | 60.0°F | 59.8°F | 61.2°F |
| Oct 24 | 60.0°F | 59.8°F | 61.0°F |
| Oct 25 | 59.6°F | 59.4°F | 60.8°F |
| Oct 26 | 59.5°F | 59.3°F | 60.8°F |
| Oct 27 | 59.5°F | 59.3°F | 60.7°F |
| Oct 28 | 59.5°F | 59.3°F | 60.6°F |
| Oct 29 | 59.3°F | 59.1°F | 60.4°F |
| Oct 30 | 59.1°F | 58.9°F | 60.3°F |
| Oct 31 | 59.1°F | 58.9°F | 60.1°F |
In an average year, Portland offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Portland was recorded on September 3, 2022, reaching a 67.0°F. While the coldest temperature occurred on March 5, 2018, dipping to 43.9°F. The average readings by season are 49.8°F in Winter, 50.1°F in Spring, 61.3°F in Summer, and 60.3°F in Autumn.
October's average temperature is a slight drop from September's average of 63.6°F. In November, the temperature is expected to decrease further, potentially averaging around 56.6°F.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Bristol |
55.4°F
|
62mi |
| Barry |
58.0°F
|
68mi |
| Cardiff |
57.4°F
|
71mi |
| Cherbourg-Octeville |
61.1°F
|
74mi |
* current water temperature in this city
** straight line distance from Portland