Normally the average weather in Porto right through the month of May is 13. High average temperature is 19 with low temperatures being around 11. Our table below has the full details:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 19 |
| Low Temperature | 11 |
| Sunshine Per Day | 9 |
Useful Links: Porto Weather: Average Weather & Yearly Climate