Normally, you can expect the weather in Portugal through May is 16. High temperatures are around 22 with low average temperatures being 13 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 16 |
| High Temperature | 22 |
| Low Temperature | 13 |
| Sunshine Per Day | 11 |
Useful Links: Portugal Weather: Average Weather & Yearly Climate