Normally the average weather in Monte Negro during the duration of September is 21 with the high being 27 with low average temperatures being 18 degrees. With the details being further below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 21 |
| High Temperature | 27 |
| Low Temperature | 18 |
| Sunshine Per Day | 10 |
Useful Links: Monte Negro Weather: Average Weather & Yearly Climate