More often than not you can expect weather in Oslo in the course of March is 3 with highs being 6 with low of -3 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 3 |
| High Temperature | 6 |
| Low Temperature | -3 |
| Sunshine Per Day | 6 |
Useful Links: Oslo Weather: Average Weather & Yearly Climate