Portland (OR) water temp
This data the coastal Portland water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Current water temperature in Portland
Water temperature in Portland today is 66.2°F. Based on our historical data over a period of ten years, the warmest water in this day in Portland was 71.6°F, and the coldest was recorded in 2024 at 62.6°F. Water temperature in Portland is expected to drop to 64°F in the next 10 days. September average water temperature in Portland is 67.1°F, the minimum temperature is 59°F, and the maximum is 75.2°F.
The swimming season in Portland lasts from July to August. During those months, Portland water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Portland in winter reaches 42.3°F, in spring 50.9°F, in summer the average temperature rises to 69.3°F, and in autumn it is 57.4°F.
Portland water temperature now
| September 14, 2025 |
|---|
| today temp |
| 66.2°F |
| September 13, 2025 |
|---|
| yesterday temp |
| 66.2°F |
Current temperature and weather
Data in a table show Portland temperature today (September 14, 2025). For more information and forecast for a few days, go to the weather forecast Portland.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 67.1°F | 64.2°F | 62.1°F | 62.6°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  | |  |
| 66.9°F | 68°F | 65.8°F | 61°F |
You may also be interested in other sections of our site for Portland: Sunrise and Sunset
Portland water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Portland. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Portland on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 42.1°F | 35.6°F | 51.8°F | cold |
| Water temperature in Portland in January | ||||
| February | 42.1°F | 33.8°F | 51.8°F | cold |
| Water temperature in Portland in February | ||||
| March | 45.9°F | 37.4°F | 55.4°F | cold |
| Water temperature in Portland in March | ||||
| April | 50°F | 41°F | 57.2°F | cold |
| Water temperature in Portland in April | ||||
| May | 56.8°F | 48.2°F | 68°F | cold |
| Water temperature in Portland in May | ||||
| June | 63.7°F | 55.4°F | 82.4°F | cold |
| Water temperature in Portland in June | ||||
| July | 71.4°F | 66.2°F | 80.6°F | warm |
| Water temperature in Portland in July | ||||
| August | 72.5°F | 64.4°F | 80.6°F | warm |
| Water temperature in Portland in August | ||||
| September | 67.1°F | 59°F | 75.2°F | cold |
| Water temperature in Portland in September | ||||
| October | 57.9°F | 48.2°F | 69.8°F | cold |
| Water temperature in Portland in October | ||||
| November | 47.3°F | 41°F | 53.6°F | cold |
| Water temperature in Portland in November | ||||
| December | 42.4°F | 37.4°F | 50°F | cold |
| Water temperature in Portland in December | ||||
Chart monthly average water temperature in Portland
