Generally, the weather in Allendale during May is 10. High temperatures are around 17 degrees celsius and a low of 7 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 17 |
| Low Temperature | 7 |
Useful Links: Allendale Weather: Average Weather & Yearly Climate