Monthly Astoria water temperature chart
The bar chart below shows the average monthly sea temperatures at Astoria over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 8.8 | 8.5 | 8.9 | 9.7 | 11.4 | 12.9 | 13.5 | 13.1 | 13.0 | 12.1 | 10.6 | 9.5 |
| °F | 47.8 | 47.3 | 48 | 49.5 | 52.5 | 55.2 | 56.3 | 55.6 | 55.4 | 53.8 | 51.1 | 49.1 |
Monthly average max / min water temperatures
The graph below shows the range of monthly water temperatures over several years.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 7.5 | 7 | 7.1 | 8.3 | 8.8 | 11.2 | 12.1 | 11.7 | 11.6 | 10.2 | 9.1 | 8.1 |
| Max °C | 10.2 | 10.1 | 10.8 | 11.1 | 14 | 14.6 | 14.9 | 14.6 | 14.4 | 14 | 12.2 | 11 |
| Min °F | 46.5 | 45.8 | 46.2 | 48.1 | 49.9 | 53.5 | 54.9 | 54.2 | 54 | 51.9 | 49.6 | 47.7 |
| Max °F | 49.2 | 48.9 | 49.9 | 50.9 | 55.1 | 56.9 | 57.7 | 57.1 | 56.8 | 55.7 | 52.7 | 50.6 |