Generally, average temperature in Arroyo Grande right through April is 12. You can expect a high of 20 and low being around 8 degrees celsius. We have put some more info below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 20 |
| Low Temperature | 8 |
Useful Links: Arroyo Grande Weather: Average Weather & Yearly Climate