Monthly Hilo water temperature chart
The bar chart below shows the average monthly sea temperatures at Hilo over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 24.8 | 24.6 | 24.4 | 24.8 | 25.2 | 25.6 | 25.9 | 26.4 | 26.6 | 26.4 | 25.9 | 25.2 |
| °F | 76.6 | 76.3 | 75.9 | 76.6 | 77.4 | 78.1 | 78.6 | 79.5 | 79.9 | 79.5 | 78.6 | 77.4 |
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 | 24.1 | 23.7 | 23.9 | 24.1 | 24.4 | 24.8 | 24.8 | 25.5 | 25.8 | 25.8 | 25 | 24.1 |
| Max °C | 25.5 | 25.6 | 25 | 25.5 | 26 | 26.4 | 27 | 27.3 | 27.5 | 27 | 26.9 | 26.3 |
| Min °F | 75.9 | 75.4 | 75.4 | 75.9 | 76.6 | 77.3 | 77.5 | 78.6 | 79.1 | 78.9 | 77.7 | 76.3 |
| Max °F | 77.3 | 77.3 | 76.5 | 77.3 | 78.2 | 78.9 | 79.7 | 80.4 | 80.8 | 80.1 | 79.6 | 78.5 |