Average temperatures Castlereagh right through March is 5. You can expect a high of 9 degrees celsius with a low of 4 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 5 |
| High Temperature | 9 |
| Low Temperature | 4 |
Useful Links: Castlereagh Weather: Average Weather & Yearly Climate